MAN1B1
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Also known as MANA-ERMRT15ERManIERMan1
Summary
MAN1B1 (mannosidase alpha class 1B member 1, HGNC:6823) is a protein-coding gene on chromosome 9q34.3, encoding Endoplasmic reticulum mannosyl-oligosaccharide 1,2-alpha-mannosidase (Q9UKM7). Involved in glycoprotein quality control targeting of misfolded glycoproteins for degradation.
This gene encodes an enzyme belonging to the glycosyl hydrolase 47 family. This enzyme functions in N-glycan biosynthesis, and is a class I alpha-1,2-mannosidase that specifically converts Man9GlcNAc to Man8GlcNAc isomer B. It is required for N-glycan trimming to Man5-6GlcNAc2 in the endoplasmic-reticulum-associated degradation pathway. Mutations in this gene cause autosomal-recessive intellectual disability. Alternative splicing results in multiple transcript variants. A related pseudogene has been identified on chromosome 11.
Source: NCBI Gene 11253 — RefSeq curated summary.
At a glance
- Gene–disease (curated): MAN1B1-congenital disorder of glycosylation (Definitive, ClinGen) — +2 more curated relationships
- GWAS associations: 2
- Clinical variants (ClinVar): 592 total — 26 pathogenic, 18 likely-pathogenic
- Phenotypes (HPO): 68
- Druggable target: yes
- MANE Select transcript:
NM_016219
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:6823 |
| Approved symbol | MAN1B1 |
| Name | mannosidase alpha class 1B member 1 |
| Location | 9q34.3 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | MANA-ER, MRT15, ERManI, ERMan1 |
| Ensembl gene | ENSG00000177239 |
| Ensembl biotype | protein_coding |
| OMIM | 604346 |
| Entrez | 11253 |
Gene structure
Transcript identifiers
Ensembl transcripts: 52 — 24 protein_coding, 14 retained_intron, 10 nonsense_mediated_decay, 4 protein_coding_CDS_not_defined
ENST00000371587, ENST00000371589, ENST00000474902, ENST00000475449, ENST00000480100, ENST00000535028, ENST00000535144, ENST00000536268, ENST00000536349, ENST00000540346, ENST00000540391, ENST00000542372, ENST00000544448, ENST00000545096, ENST00000545539, ENST00000550113, ENST00000682117, ENST00000682210, ENST00000682212, ENST00000682425, ENST00000682502, ENST00000682881, ENST00000682964, ENST00000683113, ENST00000683135, ENST00000683324, ENST00000683355, ENST00000683475, ENST00000683529, ENST00000683979, ENST00000683987, ENST00000684138, ENST00000684144, ENST00000684229, ENST00000684272, ENST00000684297, ENST00000684336, ENST00000684366, ENST00000684645, ENST00000684759, ENST00000877684, ENST00000877685, ENST00000877686, ENST00000877687, ENST00000916526, ENST00000916527, ENST00000916528, ENST00000916529, ENST00000916530, ENST00000916531, ENST00000946890, ENST00000946891
RefSeq mRNA: 1 — MANE Select: NM_016219
NM_016219
CCDS: CCDS7029
Canonical transcript exons
ENST00000371589 — 13 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001810926 | 137108388 | 137109183 |
| ENSE00002253874 | 137086985 | 137087218 |
| ENSE00003471906 | 137088869 | 137089005 |
| ENSE00003480583 | 137101005 | 137101153 |
| ENSE00003488255 | 137106689 | 137106809 |
| ENSE00003490249 | 137099696 | 137099881 |
| ENSE00003505599 | 137097828 | 137097937 |
| ENSE00003545399 | 137088075 | 137088183 |
| ENSE00003584218 | 137107531 | 137107662 |
| ENSE00003619941 | 137107250 | 137107447 |
| ENSE00003632676 | 137096237 | 137096391 |
| ENSE00003723153 | 137106125 | 137106315 |
| ENSE00003738948 | 137101484 | 137101672 |
Expression profiles
Bgee: expression breadth ubiquitous, 268 present calls, max score 96.48.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 51.4476 / max 323.2692, expressed in 1823 samples.
FANTOM5 promoters (4 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 99645 | 42.2437 | 1815 |
| 99647 | 7.1304 | 1719 |
| 99648 | 1.3631 | 964 |
| 99646 | 0.7104 | 476 |
Top tissues by expression
283 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| stromal cell of endometrium | CL:0002255 | 96.48 | gold quality |
| right uterine tube | UBERON:0001302 | 94.74 | gold quality |
| skin of leg | UBERON:0001511 | 94.51 | gold quality |
| adenohypophysis | UBERON:0002196 | 94.46 | gold quality |
| lower esophagus mucosa | UBERON:0035834 | 94.41 | gold quality |
| apex of heart | UBERON:0002098 | 94.31 | gold quality |
| skin of abdomen | UBERON:0001416 | 94.19 | gold quality |
| right hemisphere of cerebellum | UBERON:0014890 | 93.98 | gold quality |
| cerebellar hemisphere | UBERON:0002245 | 93.82 | gold quality |
| pituitary gland | UBERON:0000007 | 93.79 | gold quality |
| cerebellar cortex | UBERON:0002129 | 93.70 | gold quality |
| minor salivary gland | UBERON:0001830 | 93.55 | gold quality |
| olfactory segment of nasal mucosa | UBERON:0005386 | 93.39 | gold quality |
| right lobe of thyroid gland | UBERON:0001119 | 93.17 | gold quality |
| right lobe of liver | UBERON:0001114 | 93.13 | gold quality |
| metanephros cortex | UBERON:0010533 | 93.05 | gold quality |
| tibial nerve | UBERON:0001323 | 92.95 | gold quality |
| left testis | UBERON:0004533 | 92.92 | gold quality |
| left ovary | UBERON:0002119 | 92.75 | gold quality |
| right adrenal gland | UBERON:0001233 | 92.66 | gold quality |
| right ovary | UBERON:0002118 | 92.65 | gold quality |
| left lobe of thyroid gland | UBERON:0001120 | 92.58 | gold quality |
| right testis | UBERON:0004534 | 92.58 | gold quality |
| granulocyte | CL:0000094 | 92.53 | gold quality |
| cerebellum | UBERON:0002037 | 92.46 | gold quality |
| left adrenal gland cortex | UBERON:0035825 | 92.44 | gold quality |
| mucosa of transverse colon | UBERON:0004991 | 92.42 | gold quality |
| right adrenal gland cortex | UBERON:0035827 | 92.42 | gold quality |
| right atrium auricular region | UBERON:0006631 | 92.39 | gold quality |
| right frontal lobe | UBERON:0002810 | 92.38 | gold quality |
Single-cell (SCXA)
Detected in 1 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | no | 0.00 |
Regulation
Is transcription factor: no
miRNA regulators (miRDB)
19 targeting MAN1B1, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-30A-5P | 100.00 | 76.31 | 3233 |
| HSA-MIR-30B-5P | 100.00 | 76.29 | 3248 |
| HSA-MIR-30C-5P | 100.00 | 76.29 | 3248 |
| HSA-MIR-30D-5P | 100.00 | 76.32 | 3233 |
| HSA-MIR-30E-5P | 100.00 | 76.32 | 3242 |
| HSA-MIR-4650-5P | 99.98 | 64.69 | 999 |
| HSA-MIR-4319 | 99.76 | 69.83 | 2586 |
| HSA-MIR-670-5P | 99.67 | 69.94 | 1565 |
| HSA-MIR-516B-5P | 99.56 | 66.33 | 1495 |
| HSA-MIR-4649-3P | 99.56 | 66.90 | 1783 |
| HSA-MIR-6740-3P | 99.48 | 68.49 | 1392 |
| HSA-MIR-125A-5P | 99.36 | 70.59 | 1640 |
| HSA-MIR-125B-5P | 99.36 | 70.36 | 1662 |
| HSA-MIR-6509-3P | 98.32 | 67.33 | 1343 |
| HSA-MIR-6810-5P | 98.29 | 66.21 | 975 |
| HSA-MIR-558 | 97.50 | 67.16 | 977 |
| HSA-MIR-6773-5P | 97.04 | 64.30 | 595 |
| HSA-MIR-6724-5P | 96.41 | 63.11 | 507 |
| HSA-MIR-187-3P | 81.56 | 59.38 | 111 |
Literature-anchored findings (GeneRIF, showing 25)
- ER processing alpha1,2-mannosidase (ER ManI) has a role in ER-associated degradation of misfolded proteins (PMID:12736254)
- Modification by endoplasmic reticulum mannosidase I (ERManI) contributes to the preferential selection of the misfolded AAT monomer for proteasomal degradation. (PMID:12815101)
- glycoside bond cleavage proceeds through a least motion conformational twist of a properly predisposed substrate (PMID:15713668)
- Increased activity of alpha-mannosidase in the peritoneal fluid is associated with gynecologic cancers and pelvic inflammatory disease (PMID:15785934)
- overexpression of Golgi alpha1,2-mannosidase IA, IB, and IC also accelerates ERAD of terminally misfolded human alpha1-antitrypsin variant null (Hong Kong) (NHK), and mannose trimming from the N-glycans on NHK in 293 cells (PMID:17727818)
- ERManI is required for trimming to Man(5-6)GlcNAc(2) and for endoplasmic reticulum associated degradation in cells in vivo. (PMID:18003979)
- the true catalytic proton donor is Asp463 in the human endoplasmic reticulum alpha-(1–>2)-mannosidase I (PMID:18619586)
- the identified single-nucleotide polymorphism can accelerate the onset of the end-stage liver disease associated with alpha1-antitrypsin deficiency and underscore the contribution of biosynthetic quality control as a modifier of genetic disease (PMID:19444872)
- Golgi localization of ERManI defines spatial separation of the mammalian glycoprotein quality control system (PMID:21697506)
- A homozygous nonsense mutation in MAN1B1 segregated with nonsyndromic autosomal-recessive intellectual disability and additional dysmorphic features. (PMID:21763484)
- ERManI and gamma-COP contribute to a golgi-based quality control module that facilitates the retrieval of captured ERAD substrates back to the endoplasmic reticulum. (PMID:23427261)
- A novel post-transcriptional regulatory mechanism for ERManI via miR-125b and this molecule contributes to the regulation of carcinogenesis in hepatocellular carcinoma. (PMID:23940818)
- we linked mutations in MAN1B1 to a Golgi glycosylation disorder. Additionally, our results support the recent findings on MAN1B1 localization (PMID:24348268)
- The properties of ERMAN1 enable rapid selection of endoplasmic reticulum-associated degradation substrates in the endoplasmic reticulum.ERMAN1 digests mono-, di- and tri-glucosylated N-glycans. (PMID:24519966)
- MAN1B1 deficiency appeared to be a frequent cause in our cohort of patients with unsolved congenital disorder of glycosylation type II. (PMID:24566669)
- Results suggest that endoplasmic reticulum mannosidase I (ERManI) is turned over by an active autophagic process. (PMID:25411339)
- Data show that HIV-1 env protein interacts with alpha-mannosidases ERManI (MAN1B1) and initiates endoplasmic reticulum (ER)-associated protein degradation (ERAD) pathway degradation process. (PMID:26205822)
- MAN1B1 defective congenital disorder of glycosylation is reviewed. (PMID:26577042)
- in the bound substrate complex, hydrophobic stacking interactions between Trp residues and the glycan core anchor the base of the glycan structure to the enzyme cleft (PMID:27856750)
- The two genetic associations with severe liver disease that had been suspected previously (one SNP for SERPINA1 and another for MAN1B1) were not confirmed in our cohort. For MAN1B1, four major haplotypes were identified but the prevalence of PHT did not significantly differ between them. (PMID:28887821)
- Novel MAN1B1 variants were identified in patients with facial dysmorphism, hypotonia, truncal obesity and in some, behavioural problems. (PMID:29908352)
- Results show that MAN1B1 expression was higher in bladder cancer (BC) tissues than those in normal tissues. Its overexpression was associated with poor prognosis. Furthermore, MAN1B1 seems to act as an oncogene in BC, which improved the likelihood of MAN1B1 taking on a promising prognostic biomarker. (PMID:30218751)
- The cytoplasmic tail of human mannosidase Man1b1 contributes to catalysis-independent quality control of misfolded alpha1-antitrypsin. (PMID:32958677)
- MAN1B1-CDG: novel patients and novel variant. (PMID:34162022)
- Hepatitis B virus X protein promotes MAN1B1 expression by enhancing stability of GRP78 via TRIM25 to facilitate hepatocarcinogenesis. (PMID:36635499)
Cross-species orthologs
6 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | man1b1a | ENSDARG00000073792 |
| danio_rerio | man1b1b | ENSDARG00000076592 |
| mus_musculus | Man1b1 | ENSMUSG00000036646 |
| rattus_norvegicus | Man1b1 | ENSRNOG00000012559 |
| drosophila_melanogaster | alpha-Man-Ib | FBGN0039634 |
| caenorhabditis_elegans | WBGENE00013881 |
Paralogs (6): EDEM2 (ENSG00000088298), MAN1A1 (ENSG00000111885), EDEM3 (ENSG00000116406), MAN1C1 (ENSG00000117643), EDEM1 (ENSG00000134109), MAN1A2 (ENSG00000198162)
Protein
Protein identifiers
Endoplasmic reticulum mannosyl-oligosaccharide 1,2-alpha-mannosidase — Q9UKM7 (reviewed: Q9UKM7)
Alternative names: ER alpha-1,2-mannosidase, ER mannosidase 1, Man9GlcNAc2-specific-processing alpha-mannosidase, Mannosidase alpha class 1B member 1
All UniProt accessions (18): Q9UKM7, A0A087X064, A0A804HHU1, A0A804HIP1, A0A804HJ23, A0A804HJ66, A0A804HJW0, A0A804HK01, A0A804HK28, A0A804HK86, A0A804HKS1, A0A804HL61, A0A804HL65, H0YFU3, H0YG20, H0YGQ1, H0YGV7, H0YI64
UniProt curated annotations — full annotation on UniProt →
Function. Involved in glycoprotein quality control targeting of misfolded glycoproteins for degradation. It primarily trims a single alpha-1,2-linked mannose residue from Man(9)GlcNAc(2) to produce Man(8)GlcNAc(2), but at high enzyme concentrations, as found in the ER quality control compartment (ERQC), it further trims the carbohydrates to Man(5-6)GlcNAc(2).
Subcellular location. Endoplasmic reticulum membrane.
Tissue specificity. Widely expressed.
Disease relevance. Rafiq syndrome (RAFQS) [MIM:614202] An autosomal recessive disorder characterized by variably impaired intellectual and motor development, a characteristic facial dysmorphism, truncal obesity, and hypotonia. The facial dysmorphism comprises prominent eyebrows with lateral thinning, downward-slanting palpebral fissures, bulbous tip of the nose, large ears, and a thin upper lip. Behavioral problems, including overeating, verbal and physical aggression, have been reported in some cases. Serum transferrin isoelectric focusing shows a type 2 pattern. The disease is caused by variants affecting the gene represented in this entry.
Activity regulation. Inhibited by both 1-deoxymannojirimycin (dMNJ) and kifunensine.
Pathway. Protein modification; protein glycosylation.
Similarity. Belongs to the glycosyl hydrolase 47 family.
RefSeq proteins (1): NP_057303* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR001382 | Glyco_hydro_47 | Family |
| IPR012341 | 6hp_glycosidase-like_sf | Homologous_superfamily |
| IPR036026 | Seven-hairpin_glycosidases | Homologous_superfamily |
| IPR050749 | Glycosyl_Hydrolase_47 | Family |
Pfam: PF01532
Enzyme classification (BRENDA):
- EC 3.2.1.113 — mannosyl-oligosaccharide 1,2-alpha-mannosidase (BRENDA: 27 organisms, 103 substrates, 103 inhibitors, 15 Km, 4 kcat entries)
- EC 3.2.1.209 — endoplasmic reticulum Man9GlcNAc2 1,2-alpha-mannosidase (BRENDA: 10 organisms, 65 substrates, 48 inhibitors, 22 Km, 15 kcat entries)
Substrate kinetics (BRENDA)
14 substrates with measured Km, best-characterized 14. Km ranges are aggregated across organisms/conditions.
| Substrate | Km (mM) | Measurements |
|---|---|---|
| ALPHA-D-MAN-(1->2)-ALPHA-D-MAN-(1->2)-ALPHA-D-MA | 0.015–0.51 | 15 |
| MANALPHA(1,2)MAN-O-ME | 0.296–0.78 | 4 |
| 4-METHYLUMBELLIFERYL-ALPHA-D-MANNOPYRANOSIDE | 0.07–0.11 | 3 |
| 4-METHYLUMBELLIFERYL ALPHA-D-MANNOPYRANOSIDE | 0.07–0.09 | 2 |
| (MAN)9GLCNAC | 0.3 | 2 |
| ALPHA-1,2-MANNOBIOSE | 0.456 | 1 |
| MAN6GLCNAC | 0.26 | 1 |
| MAN8GLCNAC | 0.1 | 1 |
| MAN9GLCNAC2-[THYROGLOBULIN] | 0.2 | 1 |
| MANALPHA(1-2)MANALPHA(1-3)MANBETA(1-4)GLCNAC | 1.25 | 1 |
| MANNOBIOSE | 0.67 | 1 |
| P-NITROPHENYL-ALPHA-D-MANNOSIDE | 0.087 | 1 |
| 4-METHYLUMBELLIFERYL ALPHA-D-MANNOPYRANOSIDE | 0.04 | 1 |
| MAN9GLCNAC | 0.2 | 1 |
Catalyzed reactions (Rhea), 2 shown:
- N(4)-(alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc)-L-asparaginyl-[protein] (N-glucan mannose isomer 9A1,2,3B1,2,3) + 4 H2O = N(4)-(alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc)-L-asparaginyl-[protein] (N-glucan mannose isomer 5A1,2) + 4 beta-D-mannose (RHEA:56008)
- N(4)-(alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc)-L-asparaginyl-[protein] (N-glucan mannose isomer 8A1,2,3B1,3) + 3 H2O = N(4)-(alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc)-L-asparaginyl-[protein] (N-glucan mannose isomer 5A1,2) + 3 beta-D-mannose (RHEA:56028)
UniProt features (67 total): strand 20, helix 19, turn 7, mutagenesis site 4, active site 4, sequence variant 3, topological domain 2, sequence conflict 2, chain 1, binding site 1, disulfide bond 1, transmembrane region 1, region of interest 1, compositionally biased region 1
Structure
Experimental structures (PDB)
6 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 1X9D | X-RAY DIFFRACTION | 1.41 |
| 5KIJ | X-RAY DIFFRACTION | 1.65 |
| 5KK7 | X-RAY DIFFRACTION | 1.73 |
| 1FO3 | X-RAY DIFFRACTION | 1.75 |
| 1FMI | X-RAY DIFFRACTION | 1.9 |
| 1FO2 | X-RAY DIFFRACTION | 2.38 |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q9UKM7-F1 | 81.36 | 0.68 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Catalytic / active sites (4): 330 (proton donor); 463; 570 (proton donor); 599
Ligand- & substrate-binding residues (1): 688
Disulfide bonds (1): 527–556
Mutagenesis-validated functional residues (4):
| Position | Phenotype |
|---|---|
| 330 | about 44-fold reduction in k(cat), slight reduction in k(m), about 100-fold increase in binding affinity for man(9)glcna |
| 463 | some reduction in k(cat) but no change in k(m), abolishes almost all binding to man(9)glcnac(2) but reduced binding to t |
| 524 | about 4-fold reduction in k(cat). |
| 599 | very significant reduction in k(cat), 4-fold weaker binding affinity for man(9)glcnac(2) but about 1000-fold reduction i |
Function
Pathways and Gene Ontology
Reactome pathways
18 pathways
| ID | Pathway |
|---|---|
| R-HSA-4793950 | Defective MAN1B1 causes MRT15 |
| R-HSA-901032 | ER Quality Control Compartment (ERQC) |
| R-HSA-9694548 | Maturation of spike protein |
| R-HSA-1643685 | Disease |
| R-HSA-3781860 | Diseases associated with N-glycosylation of proteins |
| R-HSA-3781865 | Diseases of glycosylation |
| R-HSA-392499 | Metabolism of proteins |
| R-HSA-446203 | Asparagine N-linked glycosylation |
| R-HSA-532668 | N-glycan trimming in the ER and Calnexin/Calreticulin cycle |
| R-HSA-5663205 | Infectious disease |
| R-HSA-5668914 | Diseases of metabolism |
| R-HSA-597592 | Post-translational protein modification |
| R-HSA-901042 | Calnexin/calreticulin cycle |
| R-HSA-9679506 | SARS-CoV Infections |
| R-HSA-9694516 | SARS-CoV-2 Infection |
| R-HSA-9694635 | Translation of Structural Proteins |
| R-HSA-9772573 | Late SARS-CoV-2 Infection Events |
| R-HSA-9824446 | Viral Infection Pathways |
MSigDB gene sets: 264 (showing top):
GOBP_OLIGOSACCHARIDE_METABOLIC_PROCESS, GOBP_N_GLYCAN_PROCESSING, GOBP_RESPONSE_TO_NITROGEN_COMPOUND, GOBP_PROTEIN_N_LINKED_GLYCOSYLATION, GOBP_RESPONSE_TO_ENDOPLASMIC_RETICULUM_STRESS, KEGG_N_GLYCAN_BIOSYNTHESIS, GOBP_MACROMOLECULE_CATABOLIC_PROCESS, GOBP_CARBOHYDRATE_DERIVATIVE_METABOLIC_PROCESS, KESHELAVA_MULTIPLE_DRUG_RESISTANCE, BLALOCK_ALZHEIMERS_DISEASE_UP, GOBP_CARBOHYDRATE_DERIVATIVE_BIOSYNTHETIC_PROCESS, GOBP_CARBOHYDRATE_METABOLIC_PROCESS, GOBP_PROTEIN_DEGLYCOSYLATION, TGTTTAC_MIR30A5P_MIR30C_MIR30D_MIR30B_MIR30E5P, GOBP_PROTEASOMAL_PROTEIN_CATABOLIC_PROCESS
GO Biological Process (10): N-glycan processing (GO:0006491), oligosaccharide metabolic process (GO:0009311), viral protein processing (GO:0019082), ERAD pathway (GO:0036503), protein alpha-1,2-demannosylation (GO:0036508), endoplasmic reticulum mannose trimming (GO:1904380), carbohydrate metabolic process (GO:0005975), obsolete mannoprotein catabolic process (GO:0006058), obsolete protein glycosylation (GO:0006486), glycoprotein metabolic process (GO:0009100)
GO Molecular Function (6): mannosyl-oligosaccharide 1,2-alpha-mannosidase activity (GO:0004571), calcium ion binding (GO:0005509), alpha-mannosidase activity (GO:0004559), hydrolase activity (GO:0016787), hydrolase activity, acting on glycosyl bonds (GO:0016798), metal ion binding (GO:0046872)
GO Cellular Component (7): endoplasmic reticulum (GO:0005783), endoplasmic reticulum membrane (GO:0005789), Golgi apparatus (GO:0005794), membrane (GO:0016020), cytoplasmic vesicle (GO:0031410), endoplasmic reticulum quality control compartment (GO:0044322), extracellular vesicle (GO:1903561)
Reactome top-level categories
Rollup of top-15 pathways:
| Category | Pathways |
|---|---|
| Disease | 2 |
| Diseases associated with N-glycosylation of proteins | 1 |
| Calnexin/calreticulin cycle | 1 |
| Translation of Structural Proteins | 1 |
| Diseases of glycosylation | 1 |
| Diseases of metabolism | 1 |
| Post-translational protein modification | 1 |
| Asparagine N-linked glycosylation | 1 |
| Metabolism of proteins | 1 |
| N-glycan trimming in the ER and Calnexin/Calreticulin cycle | 1 |
| Viral Infection Pathways | 1 |
| SARS-CoV Infections | 1 |
| Late SARS-CoV-2 Infection Events | 1 |
| SARS-CoV-2 Infection | 1 |
| Infectious disease | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| cytoplasm | 3 |
| endomembrane system | 2 |
| intracellular membrane-bounded organelle | 2 |
| cellular anatomical structure | 2 |
| protein N-linked glycosylation | 1 |
| glycoprotein biosynthetic process | 1 |
| carbohydrate metabolic process | 1 |
| viral process | 1 |
| viral gene expression | 1 |
| proteasomal protein catabolic process | 1 |
| response to endoplasmic reticulum stress | 1 |
| response to chemical | 1 |
| mannosyl-oligosaccharide 1,2-alpha-mannosidase activity | 1 |
| protein demannosylation | 1 |
| protein alpha-1,2-demannosylation | 1 |
| endoplasmic reticulum quality control compartment | 1 |
| primary metabolic process | 1 |
| protein metabolic process | 1 |
| carbohydrate derivative metabolic process | 1 |
| mannosyl-oligosaccharide mannosidase activity | 1 |
| metal ion binding | 1 |
| mannosidase activity | 1 |
| catalytic activity | 1 |
| hydrolase activity | 1 |
| cation binding | 1 |
| organelle membrane | 1 |
| nuclear outer membrane-endoplasmic reticulum membrane network | 1 |
| endoplasmic reticulum subcompartment | 1 |
| intracellular vesicle | 1 |
| endoplasmic reticulum | 1 |
| extracellular region | 1 |
| vesicle | 1 |
| extracellular membrane-bounded organelle | 1 |
Protein interactions and networks
STRING
1494 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| MAN1B1 | MAN2C1 | Q9NTJ4 | 956 |
| MAN1B1 | MANEA | Q5SRI9 | 935 |
| MAN1B1 | MAN2A1 | Q16706 | 930 |
| MAN1B1 | OS9 | Q13438 | 892 |
| MAN1B1 | ERLEC1 | Q96DZ1 | 876 |
| MAN1B1 | CANX | P27824 | 798 |
| MAN1B1 | MOGS | Q13724 | 770 |
| MAN1B1 | SEL1L | Q9UBV2 | 768 |
| MAN1B1 | UGGT1 | Q9NYU2 | 729 |
| MAN1B1 | DNAJC10 | Q8IXB1 | 716 |
| MAN1B1 | SERPINA1 | P01009 | 692 |
| MAN1B1 | CALR | P27797 | 690 |
| MAN1B1 | ALG3 | Q92685 | 649 |
| MAN1B1 | ALG2 | Q9H553 | 642 |
| MAN1B1 | MAN2A2 | P49641 | 626 |
IntAct
67 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| CFTR | ESYT2 | psi-mi:“MI:0914”(association) | 0.710 |
| RANBP6 | SLC27A2 | psi-mi:“MI:0914”(association) | 0.640 |
| GNAI3 | RGS12 | psi-mi:“MI:0914”(association) | 0.640 |
| CCNDBP1 | JUN | psi-mi:“MI:0914”(association) | 0.530 |
| TNFSF8 | LGALS8 | psi-mi:“MI:0914”(association) | 0.530 |
| SPCS3 | ENTPD6 | psi-mi:“MI:0914”(association) | 0.530 |
| DNM2 | MAN1B1 | psi-mi:“MI:0915”(physical association) | 0.370 |
| Uso1 | SLC30A6 | psi-mi:“MI:0914”(association) | 0.350 |
| TPTE | ILVBL | psi-mi:“MI:0914”(association) | 0.350 |
| ESR1 | ESYT2 | psi-mi:“MI:0914”(association) | 0.350 |
| CUL5 | DDX3X | psi-mi:“MI:0914”(association) | 0.350 |
| CD79B | GOLIM4 | psi-mi:“MI:0914”(association) | 0.350 |
| TMEM223 | psi-mi:“MI:0914”(association) | 0.350 | |
| POMK | ESYT2 | psi-mi:“MI:0914”(association) | 0.350 |
| DYRK1A | TEX13D | psi-mi:“MI:0914”(association) | 0.350 |
| HLA-DQB1 | ESYT2 | psi-mi:“MI:0914”(association) | 0.350 |
| IL13 | PLEKHG3 | psi-mi:“MI:0914”(association) | 0.350 |
| FGF14 | ZSWIM8 | psi-mi:“MI:0914”(association) | 0.350 |
| KCNE3 | PIK3R2 | psi-mi:“MI:0914”(association) | 0.350 |
| GPR182 | SLC12A8 | psi-mi:“MI:0914”(association) | 0.350 |
| PCDHB3 | ESYT2 | psi-mi:“MI:0914”(association) | 0.350 |
| GP9 | ESYT2 | psi-mi:“MI:0914”(association) | 0.350 |
| PIGH | ILVBL | psi-mi:“MI:0914”(association) | 0.350 |
BioGRID (121): MAN1B1 (Affinity Capture-MS), MAN1B1 (Affinity Capture-MS), MAN1B1 (Affinity Capture-MS), MAN1B1 (Affinity Capture-MS), MAN1B1 (Affinity Capture-MS), MAN1B1 (Affinity Capture-MS), MAN1B1 (Affinity Capture-RNA), MAN1B1 (Affinity Capture-MS), MAN1B1 (Affinity Capture-MS), MAN1B1 (Affinity Capture-MS), MAN1B1 (Affinity Capture-MS), MOGS (Negative Genetic), RAB5C (Negative Genetic), TBL1XR1 (Negative Genetic), MAN1B1 (Negative Genetic)
ESM2 similar proteins: A2AJ15, B2GUY0, O02773, O18498, O60476, P32906, P33908, P39098, P45700, P45701, P53624, Q08463, Q10471, Q18788, Q1L8D2, Q2HXL6, Q49A17, Q5EA41, Q5GF25, Q5RFJ6, Q6GQB9, Q6NXH2, Q6P9S7, Q6PB93, Q6WV16, Q80VA0, Q86SF2, Q86SR1, Q8BJT9, Q8H116, Q8J0Q0, Q8K1B9, Q8N428, Q925R7, Q925U4, Q92611, Q93Y37, Q9BV94, Q9BZQ6, Q9C512
Diamond homologs: A1CP08, A1D1W1, A2AJ15, A2QAS2, B0XMT4, B2GUY0, B8N417, D4AV26, E9CXX8, O02773, O18498, O60476, P31723, P33908, P39098, P45700, P45701, P53624, Q0D076, Q12563, Q18788, Q2ULB2, Q4WRZ5, Q5BF93, Q8H116, Q8J0Q0, Q93Y37, Q9C512, Q9NR34, Q9UKM7, O94726, P32906, Q2HXL6, Q6GQB9, Q8BJT9, Q925U4, Q92611, Q9BV94, Q9BZQ6, Q9FG93
SIGNOR signaling
0 interactions.
Disease & clinical
Clinical variants and AI predictions
ClinVar
592 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 26 |
| Likely pathogenic | 18 |
| Uncertain significance | 238 |
| Likely benign | 183 |
| Benign | 47 |
Top pathogenic / likely-pathogenic (30)
| Variant ID | HGVS | Classification |
|---|---|---|
| 1030542 | NM_016219.5(MAN1B1):c.1444C>T (p.Gln482Ter) | Pathogenic |
| 1076605 | NM_016219.5(MAN1B1):c.242T>A (p.Leu81Ter) | Pathogenic |
| 1254598 | NM_016219.5(MAN1B1):c.484C>T (p.Gln162Ter) | Pathogenic |
| 1458149 | NC_000009.11:g.(?139981452)(139983477_?)del | Pathogenic |
| 2012254 | NM_016219.5(MAN1B1):c.772_775del (p.Leu258fs) | Pathogenic |
| 203378 | NM_016219.5(MAN1B1):c.1276_1277del (p.Gln426fs) | Pathogenic |
| 2087749 | NM_016219.5(MAN1B1):c.1236_1237del (p.Gly413_Asp414insTer) | Pathogenic |
| 2115404 | NM_016219.5(MAN1B1):c.1228del (p.Arg410fs) | Pathogenic |
| 2579642 | NM_016219.5(MAN1B1):c.624G>A (p.Trp208Ter) | Pathogenic |
| 2791167 | NM_016219.5(MAN1B1):c.1241del (p.Asp414fs) | Pathogenic |
| 3014905 | NM_016219.5(MAN1B1):c.1397_1398del (p.Tyr465_Tyr466insTer) | Pathogenic |
| 30414 | NM_016219.5(MAN1B1):c.1418G>A (p.Trp473Ter) | Pathogenic |
| 3245243 | NC_000009.11:g.(?139981452)(140003043_?)del | Pathogenic |
| 3363104 | NM_016219.5(MAN1B1):c.2065G>T (p.Glu689Ter) | Pathogenic |
| 3701326 | NM_016219.5(MAN1B1):c.1731C>G (p.Tyr577Ter) | Pathogenic |
| 3716972 | NM_016219.5(MAN1B1):c.1177_1178dup (p.Ser393fs) | Pathogenic |
| 3899468 | NM_016219.5(MAN1B1):c.297_301del (p.Phe100fs) | Pathogenic |
| 4703323 | NM_016219.5(MAN1B1):c.1216del (p.Arg406fs) | Pathogenic |
| 4747916 | NM_016219.5(MAN1B1):c.1014dup (p.Leu339fs) | Pathogenic |
| 4772561 | NM_016219.5(MAN1B1):c.1240dup (p.Asp414fs) | Pathogenic |
| 916080 | NM_016219.5(MAN1B1):c.244C>T (p.Gln82Ter) | Pathogenic |
| 983290 | NM_016219.5(MAN1B1):c.1225T>C (p.Ser409Pro) | Pathogenic |
| 983293 | NM_016219.5(MAN1B1):c.1445+2_1445+5del | Pathogenic |
| 983295 | NM_016219.5(MAN1B1):c.621-2A>G | Pathogenic |
| 983297 | NM_016219.5(MAN1B1):c.761_764del (p.Ile254fs) | Pathogenic |
| 983298 | NM_016219.5(MAN1B1):c.1311del (p.Leu438fs) | Pathogenic |
| 1678867 | NM_016219.5(MAN1B1):c.1736delinsCG (p.Gln579fs) | Likely pathogenic |
| 1805568 | NM_016219.5(MAN1B1):c.917-2_921del | Likely pathogenic |
| 1805593 | NM_016219.5(MAN1B1):c.1378_1394delinsAG (p.Ala460_Tyr465delinsSer) | Likely pathogenic |
| 211429 | NM_016219.5(MAN1B1):c.530_542del (p.Leu177fs) | Likely pathogenic |
SpliceAI
2618 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 9:137088073:A:AG | acceptor_gain | 1.0000 |
| 9:137088074:G:GG | acceptor_gain | 1.0000 |
| 9:137096235:A:AG | acceptor_gain | 1.0000 |
| 9:137096236:G:GG | acceptor_gain | 1.0000 |
| 9:137096236:GAA:G | acceptor_gain | 1.0000 |
| 9:137097823:C:CA | acceptor_gain | 1.0000 |
| 9:137097826:A:AG | acceptor_gain | 1.0000 |
| 9:137097826:A:T | acceptor_loss | 1.0000 |
| 9:137097826:AGCT:A | acceptor_gain | 1.0000 |
| 9:137097827:G:GA | acceptor_loss | 1.0000 |
| 9:137097827:G:GG | acceptor_gain | 1.0000 |
| 9:137097827:GCT:G | acceptor_gain | 1.0000 |
| 9:137097827:GCTG:G | acceptor_gain | 1.0000 |
| 9:137099810:G:GG | donor_gain | 1.0000 |
| 9:137099878:A:T | donor_gain | 1.0000 |
| 9:137101003:A:AG | acceptor_gain | 1.0000 |
| 9:137101003:AG:A | acceptor_loss | 1.0000 |
| 9:137101004:G:GG | acceptor_gain | 1.0000 |
| 9:137101148:A:T | donor_gain | 1.0000 |
| 9:137101149:AAGCT:A | donor_gain | 1.0000 |
| 9:137101150:AGCT:A | donor_gain | 1.0000 |
| 9:137101151:GCT:G | donor_gain | 1.0000 |
| 9:137101151:GCTG:G | donor_gain | 1.0000 |
| 9:137101152:CT:C | donor_gain | 1.0000 |
| 9:137101154:G:GG | donor_gain | 1.0000 |
| 9:137101481:CAG:C | acceptor_loss | 1.0000 |
| 9:137101656:GGGA:G | donor_gain | 1.0000 |
| 9:137101668:TTCAG:T | donor_loss | 1.0000 |
| 9:137101669:TCAG:T | donor_loss | 1.0000 |
| 9:137101670:CAGGT:C | donor_loss | 1.0000 |
AlphaMissense
4579 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 9:137101616:A:C | S400R | 0.999 |
| 9:137101618:C:A | S400R | 0.999 |
| 9:137101618:C:G | S400R | 0.999 |
| 9:137106283:G:C | K471N | 0.999 |
| 9:137106283:G:T | K471N | 0.999 |
| 9:137107573:A:C | S603R | 0.999 |
| 9:137107575:C:A | S603R | 0.999 |
| 9:137107575:C:G | S603R | 0.999 |
| 9:137107257:T:C | L525P | 0.998 |
| 9:137107262:T:C | C527R | 0.998 |
| 9:137107264:C:G | C527W | 0.998 |
| 9:137107351:T:G | C556W | 0.998 |
| 9:137108463:A:C | S658R | 0.998 |
| 9:137108465:C:A | S658R | 0.998 |
| 9:137108465:C:G | S658R | 0.998 |
| 9:137108466:T:C | F659L | 0.998 |
| 9:137108468:C:A | F659L | 0.998 |
| 9:137108468:C:G | F659L | 0.998 |
| 9:137108552:C:A | N687K | 0.998 |
| 9:137108552:C:G | N687K | 0.998 |
| 9:137101073:T:C | F329L | 0.997 |
| 9:137101075:T:A | F329L | 0.997 |
| 9:137101075:T:G | F329L | 0.997 |
| 9:137101078:G:C | E330D | 0.997 |
| 9:137101078:G:T | E330D | 0.997 |
| 9:137106711:G:C | A490P | 0.997 |
| 9:137107250:G:C | D523H | 0.997 |
| 9:137107257:T:A | L525Q | 0.997 |
| 9:137107263:G:A | C527Y | 0.997 |
| 9:137107265:T:C | F528L | 0.997 |
dbSNP variants (sampled 300 via entrez): RS1000095002 (9:137102162 C>T), RS1000521021 (9:137085334 C>A), RS1000626452 (9:137090296 G>A), RS1000760980 (9:137095358 C>T), RS1000892950 (9:137098321 C>T), RS1000987164 (9:137103217 G>A,C,T), RS1001067035 (9:137104074 C>A,G,T), RS1001103399 (9:137103545 C>A,T), RS1001323491 (9:137099037 C>T), RS1001404596 (9:137087914 T>C), RS1001424835 (9:137093161 C>T), RS1001519048 (9:137093006 A>G), RS1001663442 (9:137097576 C>A,T), RS1001727790 (9:137094971 T>A), RS1001762238 (9:137101398 A>G)
Disease associations
OMIM: gene MIM:604346 | disease phenotypes: MIM:614202
GenCC curated gene-disease
| Disease | Classification | Inheritance |
|---|---|---|
| Rafiq syndrome | Definitive | Autosomal recessive |
| MAN1B1-congenital disorder of glycosylation | Definitive | Autosomal recessive |
| autosomal recessive non-syndromic intellectual disability | Supportive | Autosomal recessive |
ClinGen Gene-Disease Validity (1)
Expert-panel classifications — Definitive > Strong > Moderate > Limited > Disputed > Refuted.
| Disease | Classification | Inheritance |
|---|---|---|
| MAN1B1-congenital disorder of glycosylation | Definitive | AR |
Mondo (4): Rafiq syndrome (MONDO:0013624), MAN1B1-congenital disorder of glycosylation (MONDO:0018349), intellectual disability (MONDO:0001071), autosomal recessive non-syndromic intellectual disability (MONDO:0019502)
Orphanet (3): Autosomal recessive non-syndromic intellectual disability (Orphanet:88616), MAN1B1-CDG (Orphanet:397941), NON RARE IN EUROPE: Unexplained intellectual disability (Orphanet:319658)
HPO phenotypes
68 total (30 of 68 shown, HPO-id order):
| HPO | Term |
|---|---|
| HP:0000007 | Autosomal recessive inheritance |
| HP:0000219 | Thin upper lip vermilion |
| HP:0000256 | Macrocephaly |
| HP:0000268 | Dolichocephaly |
| HP:0000272 | Malar flattening |
| HP:0000276 | Long face |
| HP:0000286 | Epicanthus |
| HP:0000307 | Pointed chin |
| HP:0000316 | Hypertelorism |
| HP:0000319 | Smooth philtrum |
| HP:0000322 | Short philtrum |
| HP:0000331 | Short chin |
| HP:0000369 | Low-set ears |
| HP:0000400 | Macrotia |
| HP:0000414 | Bulbous nose |
| HP:0000431 | Wide nasal bridge |
| HP:0000445 | Wide nose |
| HP:0000448 | Prominent nose |
| HP:0000470 | Short neck |
| HP:0000486 | Strabismus |
| HP:0000494 | Downslanted palpebral fissures |
| HP:0000527 | Long eyelashes |
| HP:0000540 | Hypermetropia |
| HP:0000708 | Atypical behavior |
| HP:0000717 | Autism |
| HP:0000718 | Aggressive behavior |
| HP:0000729 | Autistic behavior |
| HP:0000768 | Pectus carinatum |
| HP:0000973 | Cutis laxa |
| HP:0001249 | Intellectual disability |
GWAS associations
2 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST006633_21 | Initial alcohol sensitivity | 5.000000e-06 |
| GCST90013538_2 | Coronary artery aneurysm in Kawasaki disease | 5.000000e-07 |
MeSH disease descriptors (1)
| Descriptor | Name | Tree numbers |
|---|---|---|
| D008607 | Intellectual Disability | C10.597.606.360; C23.888.592.604.646; F01.700.687; F03.625.539 |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: yes
ChEMBL targets (1): CHEMBL2308 (SINGLE PROTEIN)
PharmGKB: 1 entry (VIP=true, CPIC=false)
PharmGKB variants
1 variants.
| Variant | Genes | Level | Score | #Clin annots | Drugs |
|---|---|---|---|---|---|
| rs3750518 | MAN1B1 | 0.00 | 0 |
ChEMBL bioactivities
12 potent at pChembl≥5 of 24 total, top 12 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).
| pChembl | Type | Value | Unit | Molecule |
|---|---|---|---|---|
| 6.80 | Ki | 160 | nM | CHEMBL2206824 |
| 6.64 | Ki | 230 | nM | CHEMBL2206818 |
| 6.51 | Ki | 310 | nM | CHEMBL2206823 |
| 6.51 | Ki | 310 | nM | CHEMBL2206822 |
| 6.36 | Ki | 440 | nM | CHEMBL2206821 |
| 6.12 | Ki | 760 | nM | CHEMBL2206819 |
| 6.10 | Ki | 790 | nM | CHEMBL188227 |
| 6.04 | Ki | 910 | nM | CHEMBL2206820 |
| 5.90 | Ki | 1260 | nM | IMINORIBITOL |
| 5.80 | Ki | 1590 | nM | CHEMBL2206825 |
| 5.58 | Ki | 2620 | nM | CHEMBL361899 |
| 5.49 | Ki | 3240 | nM | CHEMBL2207396 |
PubChem BioAssay actives
12 with measured affinity, of 30 total; 12 most potent distinct compounds. Largely complementary to BindingDB; screening values are coarse (µM, 4 dp), so sub-nM hits tie at the floor.
| Compound | Assay | Type | Value | Unit |
|---|---|---|---|---|
| 2-bromo-N-[(2R)-2-[[(2R,3R,4S)-3,4-dihydroxypyrrolidin-2-yl]methylamino]-2-phenylethyl]benzamide | 717598: Inhibition of human ER alpha mannosidase 1 | ki | 0.1600 | uM |
| (2R,3R,4S)-2-[[[(1R)-1-phenyl-2-phenylmethoxyethyl]amino]methyl]pyrrolidine-3,4-diol | 717598: Inhibition of human ER alpha mannosidase 1 | ki | 0.2300 | uM |
| (2R,3R,4S)-2-[[[(1R)-2-[(4-bromophenoxy)methoxy]-1-phenylethyl]amino]methyl]pyrrolidine-3,4-diol | 717598: Inhibition of human ER alpha mannosidase 1 | ki | 0.3100 | uM |
| (2R,3R,4S)-2-[[[(1R)-2-[(3-bromophenoxy)methoxy]-1-phenylethyl]amino]methyl]pyrrolidine-3,4-diol | 717598: Inhibition of human ER alpha mannosidase 1 | ki | 0.3100 | uM |
| (2R,3R,4S)-2-[[[(1R)-2-[(4-fluorophenoxy)methoxy]-1-phenylethyl]amino]methyl]pyrrolidine-3,4-diol | 717598: Inhibition of human ER alpha mannosidase 1 | ki | 0.4400 | uM |
| (2R,3R,4S)-2-[[[(1R)-2-[(3-fluorophenyl)methoxy]-1-phenylethyl]amino]methyl]pyrrolidine-3,4-diol | 717598: Inhibition of human ER alpha mannosidase 1 | ki | 0.7600 | uM |
| (2R,3R,4S)-2-[[[(1R,2S)-2-hydroxy-1,2-diphenylethyl]amino]methyl]pyrrolidine-3,4-diol | 717598: Inhibition of human ER alpha mannosidase 1 | ki | 0.7900 | uM |
| (2R,3R,4S)-2-[[[(1R)-2-[(2-fluorophenoxy)methoxy]-1-phenylethyl]amino]methyl]pyrrolidine-3,4-diol | 717598: Inhibition of human ER alpha mannosidase 1 | ki | 0.9100 | uM |
| (2R,3R,4S)-2-(hydroxymethyl)pyrrolidine-3,4-diol | 717598: Inhibition of human ER alpha mannosidase 1 | ki | 1.2600 | uM |
| (2R,3R,4S)-2-(aminomethyl)pyrrolidine-3,4-diol | 717598: Inhibition of human ER alpha mannosidase 1 | ki | 1.5900 | uM |
| (2R,3R,4S)-2-[[[(1S,2R)-2-hydroxy-1,2-diphenylethyl]amino]methyl]pyrrolidine-3,4-diol | 717598: Inhibition of human ER alpha mannosidase 1 | ki | 2.6200 | uM |
| (3R,4S)-pyrrolidine-3,4-diol | 717598: Inhibition of human ER alpha mannosidase 1 | ki | 3.2400 | uM |
CTD chemical–gene interactions
41 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| sodium arsenite | decreases expression, affects cotreatment | 3 |
| aristolochic acid I | increases expression | 1 |
| bisphenol F | affects cotreatment, decreases expression | 1 |
| triphenyl phosphate | affects expression | 1 |
| lead acetate | affects cotreatment, decreases expression | 1 |
| tetrahydropalmatine | increases expression | 1 |
| bleomycetin | increases expression | 1 |
| aflatoxin B2 | decreases methylation | 1 |
| methacrylaldehyde | affects cotreatment, increases oxidation | 1 |
| beta-methylcholine | affects expression | 1 |
| 15-acetyldeoxynivalenol | increases expression | 1 |
| CGP 52608 | affects binding, increases reaction | 1 |
| CD 437 | decreases expression | 1 |
| 3-(4’-hydroxy-3’-adamantylbiphenyl-4-yl)acrylic acid | decreases expression | 1 |
| Grape Seed Proanthocyanidins | decreases expression, affects cotreatment | 1 |
| jinfukang | affects cotreatment, increases expression | 1 |
| Decitabine | increases expression | 1 |
| Sunitinib | increases expression | 1 |
| Acrolein | affects cotreatment, increases oxidation | 1 |
| Cadmium | increases abundance, increases expression | 1 |
| Catechin | affects cotreatment, decreases expression | 1 |
| Cisplatin | affects cotreatment, increases expression | 1 |
| Copper | affects binding, increases expression | 1 |
| Dexamethasone | affects cotreatment, decreases expression | 1 |
| Diazinon | increases methylation | 1 |
| Disulfiram | affects binding, increases expression | 1 |
| Indomethacin | affects cotreatment, decreases expression | 1 |
| Ivermectin | decreases expression | 1 |
| Manganese | affects expression | 1 |
| Mercury | affects expression | 1 |
ChEMBL screening assays
1 unique, capped per target: 1 binding
Representative assays (with source publication via chembl_document):
| Assay ID | Type | Description | Source paper |
|---|---|---|---|
| CHEMBL2215204 | Binding | Inhibition of human ER alpha mannosidase 1 | Virtual screening and QSAR study of some pyrrolidine derivatives as α-mannosidase inhibitors for binding feature analysis. — Bioorg Med Chem |
Cellosaurus cell lines
1 cell lines: 1 induced pluripotent stem cell
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_D2X9 | PiZZ1-MAN1B1del | Induced pluripotent stem cell | Male |
Clinical trials (associated diseases)
197 trials via MONDO — disease-level, not drug-specific.
| Trial | Phase | Status | Title |
|---|---|---|---|
| NCT05657860 | PHASE4 | COMPLETED | Guanfacine Extended Release for the Reduction of Aggression and Self-injurious Behavior Associated With Prader-Willi Syndrome |
| NCT05744479 | PHASE4 | RECRUITING | Metformin for Antipsychotic-induced Weight Gain in Adults With Intellectual Disability |
| NCT06107829 | PHASE4 | WITHDRAWN | Valbenazine Treatment of Tardive Dyskinesia in Adults With Intellectual/Developmental Disabilities |
| NCT06997198 | PHASE4 | NOT_YET_RECRUITING | Deutetrabenazine Treatment for Tardive Dyskinesia in Intellectual/Developmental Disabilities |
| NCT02270736 | PHASE3 | COMPLETED | Clinical Study to Investigate the Efficacy and Safety of NT 201 Compared to Placebo in the Treatment of Chronic Troublesome Drooling Associated With Neurological Disorders and/or Intellectual Disability |
| NCT02304302 | PHASE2 | COMPLETED | Down Syndrome Memantine Follow-up Study |
| NCT03862950 | PHASE2 | COMPLETED | A Trial of Metformin in Individuals With Fragile X Syndrome (Met) |
| NCT04529226 | PHASE2 | UNKNOWN | Study to Compare Clozapine vs Treatment as Usual in People With Intellectual Disability & Treatment-resistant Psychosis |
| NCT04821856 | PHASE2 | COMPLETED | Evaluation of the Effectiveness of Cannabidiol in Treating Severe Behavioural Problems in Children and Adolescents With Intellectual Disability |
| NCT05273320 | PHASE1 | COMPLETED | Clinical Trial of Nabilone for Aggression in Adults With Intellectual and Developmental Disabilities |
| NCT05301361 | PHASE1 | ENROLLING_BY_INVITATION | Sensitivity of the NIH Toolbox to Stimulant Treatment in Intellectual Disabilities |
| NCT06016764 | PHASE1 | COMPLETED | Use of MRI and cTBS for Catatonia in Autism |
| NCT06586827 | PHASE1 | COMPLETED | Impact of Competency-Based Training and Technical Assistance Employment Outcomes of Individuals With ID/DD |
| NCT07531940 | PHASE1 | NOT_YET_RECRUITING | Escalating Doses of Memantine in Down Syndrome (MEDS-123) |
| NCT03479476 | PHASE2/PHASE3 | COMPLETED | A Trial of Metformin in Individuals With Fragile X Syndrome |
| NCT02616796 | PHASE1/PHASE2 | COMPLETED | Effects of Social Gaze Training on Brain and Behavior in Fragile X Syndrome |
| NCT06860672 | EARLY_PHASE1 | RECRUITING | Clinical Trial of the Dual Vector Base Editor for the Treatment of the CHD3-R1025W Mutation |
| NCT00597948 | Not specified | COMPLETED | Healthy Lifestyles for People With Intellectual Disabilities |
| NCT01087320 | Not specified | RECRUITING | Genome Medical Sequencing for Gene Discovery |
| NCT01652963 | Not specified | UNKNOWN | Picture-based Computerised Assessment and Training of Cognitive Behaviour Therapy Skills |
| NCT01695395 | Not specified | COMPLETED | Mental Health Care Provision for Adults With Intellectual Disability and a Mental Disorder |
| NCT01867554 | Not specified | COMPLETED | Research and Characterization of New Genes Involved in Intellectual Disability |
| NCT01915381 | Not specified | COMPLETED | Improving Adherence Healthy Lifestyle With a Smartphone Application Based on Adults With Intellectual Disabilities |
| NCT01988623 | Not specified | COMPLETED | Pivotal Response Treatment for Individuals With Intellectual Disabilities |
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| NCT02136849 | Not specified | COMPLETED | Inter-regional Project of the Great Western Exploration Approach for Exome Molecular Causes Severe Intellectual Disability Isolated or Syndromic |
| NCT02225041 | Not specified | COMPLETED | Sedation Strategy and Cognitive Outcome After Critical Illness in Early Childhood |
| NCT02414438 | Not specified | COMPLETED | Establishing the Clinical Utility of First StepDx PLUS and NextStepDx PLUS Study |
| NCT02451761 | Not specified | COMPLETED | Apparently Balanced Chromosomal Translocation/ Next-generation Sequencing/ Intellectual Disability |
| NCT02461420 | Not specified | ACTIVE_NOT_RECRUITING | Mapping the Genotype, Phenotype, and Natural History of Phelan-McDermid Syndrome |
| NCT02461459 | Not specified | ACTIVE_NOT_RECRUITING | Autism Spectrum Disorder (ASD) and Intellectual Disability (ID) Determinants in Tuberous Sclerosis Complex (TSC) |
| NCT02486081 | Not specified | COMPLETED | Development and Application-Smart Football for Movement Evaluation and Training in the Special Education Population |
| NCT02504502 | Not specified | COMPLETED | Enhancing Genomic Laboratory Reports to Enhance Communication and Empower Patients |
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| NCT02561754 | Not specified | COMPLETED | Weight Management for Adolescents With IDD |
| NCT02591446 | Not specified | COMPLETED | Transcranial Magnetic Stimulation Studies in Autism Spectrum Disorders |
| NCT02714868 | Not specified | COMPLETED | Evaluation of Project TEAM (Teens Making Environmental and Activity Modifications) |
| NCT02721394 | Not specified | UNKNOWN | FCT With Young Children With ID in the UK: A Feasibility Project V.1 |
| NCT02746614 | Not specified | COMPLETED | Psychomotor Therapy Effects in Adaptive Behavior and Motor Proficiency in Intellectual Disability |
| NCT02836405 | Not specified | COMPLETED | TMS for the Investigation of Brain Plasticity in Autism Spectrum Disorders |
Related Atlas pages
- Associated diseases: Rafiq syndrome, MAN1B1-congenital disorder of glycosylation, autosomal recessive non-syndromic intellectual disability
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): autosomal recessive non-syndromic intellectual disability, coronary aneurysm, MAN1B1-congenital disorder of glycosylation, Rafiq syndrome