MCEE
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Also known as GLOD2MCEMMCE
Summary
MCEE (methylmalonyl-CoA epimerase, HGNC:16732) is a protein-coding gene on chromosome 2p13.3, encoding Methylmalonyl-CoA epimerase, mitochondrial (Q96PE7). Methylmalonyl-CoA epimerase involved in propionyl-CoA metabolism.
The product of this gene catalyzes the interconversion of D- and L-methylmalonyl-CoA during the degradation of branched chain amino acids. odd chain-length fatty acids, and other metabolites. Mutations in this gene result in methylmalonyl-CoA epimerase deficiency, which is presented as mild to moderate methylmalonic aciduria.
Source: NCBI Gene 84693 — RefSeq curated summary.
At a glance
- Gene–disease (curated): methylmalonic acidemia due to methylmalonyl-CoA epimerase deficiency (Definitive, ClinGen)
- GWAS associations: 2
- Clinical variants (ClinVar): 142 total — 6 pathogenic, 5 likely-pathogenic
- Phenotypes (HPO): 12
- Dosage sensitivity (ClinGen): haploinsufficiency autosomal recessive, triplosensitivity no evidence
- MANE Select transcript:
NM_032601
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:16732 |
| Approved symbol | MCEE |
| Name | methylmalonyl-CoA epimerase |
| Location | 2p13.3 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | GLOD2, MCE, MMCE |
| Ensembl gene | ENSG00000124370 |
| Ensembl biotype | protein_coding |
| OMIM | 608419 |
| Entrez | 84693 |
Gene structure
Transcript identifiers
Ensembl transcripts: 6 — 5 protein_coding, 1 protein_coding_CDS_not_defined
ENST00000244217, ENST00000413592, ENST00000462609, ENST00000486135, ENST00000494660, ENST00000916433
RefSeq mRNA: 1 — MANE Select: NM_032601
NM_032601
CCDS: CCDS1915
Canonical transcript exons
ENST00000244217 — 3 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001935724 | 71130180 | 71130229 |
| ENSE00003532574 | 71124206 | 71124543 |
| ENSE00003849578 | 71109687 | 71110122 |
Expression profiles
Bgee: expression breadth ubiquitous, 249 present calls, max score 94.61.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 9.6982 / max 95.5856, expressed in 1751 samples.
FANTOM5 promoters (1 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 29058 | 9.6982 | 1751 |
Top tissues by expression
254 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| body of pancreas | UBERON:0001150 | 94.61 | gold quality |
| right lobe of liver | UBERON:0001114 | 94.08 | gold quality |
| left ventricle myocardium | UBERON:0006566 | 94.02 | gold quality |
| upper arm skin | UBERON:0004263 | 93.13 | gold quality |
| heart left ventricle | UBERON:0002084 | 92.89 | gold quality |
| right atrium auricular region | UBERON:0006631 | 92.63 | gold quality |
| cardiac ventricle | UBERON:0002082 | 92.59 | gold quality |
| right adrenal gland | UBERON:0001233 | 92.50 | gold quality |
| left adrenal gland | UBERON:0001234 | 92.36 | gold quality |
| calcaneal tendon | UBERON:0003701 | 92.22 | gold quality |
| minor salivary gland | UBERON:0001830 | 92.17 | gold quality |
| cardiac atrium | UBERON:0002081 | 92.16 | gold quality |
| left adrenal gland cortex | UBERON:0035825 | 92.11 | gold quality |
| pancreas | UBERON:0001264 | 91.89 | gold quality |
| right adrenal gland cortex | UBERON:0035827 | 91.88 | gold quality |
| heart | UBERON:0000948 | 91.75 | gold quality |
| mouth mucosa | UBERON:0003729 | 91.56 | gold quality |
| rectum | UBERON:0001052 | 91.35 | gold quality |
| myocardium | UBERON:0002349 | 91.19 | gold quality |
| muscle of leg | UBERON:0001383 | 91.18 | gold quality |
| deltoid | UBERON:0001476 | 91.17 | gold quality |
| quadriceps femoris | UBERON:0001377 | 91.15 | gold quality |
| liver | UBERON:0002107 | 91.08 | gold quality |
| hindlimb stylopod muscle | UBERON:0004252 | 91.06 | gold quality |
| vastus lateralis | UBERON:0001379 | 90.98 | gold quality |
| adrenal cortex | UBERON:0001235 | 90.94 | gold quality |
| adrenal gland | UBERON:0002369 | 90.88 | gold quality |
| gastrocnemius | UBERON:0001388 | 90.86 | gold quality |
| esophagus mucosa | UBERON:0002469 | 90.80 | gold quality |
| saliva-secreting gland | UBERON:0001044 | 90.74 | gold quality |
Single-cell (SCXA)
Detected in 1 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | yes | 16.06 |
Regulation
Is transcription factor: no
miRNA regulators (miRDB)
26 targeting MCEE, 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-3924 | 100.00 | 72.09 | 2394 |
| HSA-MIR-190A-3P | 100.00 | 80.35 | 5520 |
| HSA-MIR-1277-5P | 100.00 | 73.95 | 5056 |
| HSA-MIR-5692A | 100.00 | 74.40 | 6850 |
| HSA-MIR-8068 | 99.98 | 73.85 | 2376 |
| HSA-MIR-607 | 99.97 | 73.62 | 5593 |
| HSA-MIR-7-1-3P | 99.91 | 71.53 | 4384 |
| HSA-MIR-7-2-3P | 99.91 | 71.40 | 4394 |
| HSA-MIR-3686 | 99.90 | 70.53 | 2432 |
| HSA-MIR-10395-5P | 99.86 | 67.35 | 676 |
| HSA-MIR-6079 | 99.84 | 68.54 | 1170 |
| HSA-MIR-4799-5P | 99.82 | 70.60 | 2663 |
| HSA-MIR-2053 | 99.57 | 69.15 | 1635 |
| HSA-MIR-302B-5P | 99.50 | 69.49 | 1857 |
| HSA-MIR-302D-5P | 99.50 | 69.34 | 1863 |
| HSA-MIR-4519 | 99.48 | 66.10 | 859 |
| HSA-MIR-32-3P | 99.36 | 68.20 | 2517 |
| HSA-MIR-190B-3P | 99.33 | 68.29 | 1382 |
| HSA-MIR-6828-5P | 99.31 | 69.21 | 1433 |
| HSA-MIR-3125 | 99.14 | 68.49 | 2269 |
| HSA-MIR-3916 | 98.99 | 68.04 | 2155 |
| HSA-MIR-6859-5P | 98.99 | 68.07 | 2049 |
| HSA-MIR-11399 | 98.71 | 65.69 | 869 |
| HSA-MIR-5197-3P | 98.71 | 67.05 | 1905 |
| HSA-MIR-3674 | 97.01 | 68.86 | 1171 |
| HSA-MIR-642B-5P | 96.37 | 67.26 | 745 |
Functional genomics
ClinGen dosage: haploinsufficiency 30 (autosomal recessive), triplosensitivity 0 (no evidence). ClinGen Gene Dosage Map
Literature-anchored findings (GeneRIF, showing 2)
- analysis of frequency of mutations in the methylmalonyl CoA epimerase gene (MCEE) in atypical methylmalonic aciduria (PMID:17823972)
- Results indicate that methylmalonyl-CoA epimerase (MCEE)-Arg143Cys mutaaaaaaation was detectable at comparable levels to wildtype (wt) MCEE, but had slightly altered unfolding kinetics and greatly reduced activity. (PMID:30682498)
Cross-species orthologs
3 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| mus_musculus | Mcee | ENSMUSG00000033429 |
| rattus_norvegicus | Mcee | ENSRNOG00000016327 |
| caenorhabditis_elegans | mce-1 | WBGENE00008415 |
Paralogs (1): GLOD5 (ENSG00000171433)
Protein
Protein identifiers
Methylmalonyl-CoA epimerase, mitochondrial — Q96PE7 (reviewed: Q96PE7)
Alternative names: DL-methylmalonyl-CoA racemase
All UniProt accessions (3): F5GZ54, H7BZS7, Q96PE7
UniProt curated annotations — full annotation on UniProt →
Function. Methylmalonyl-CoA epimerase involved in propionyl-CoA metabolism.
Subcellular location. Mitochondrion.
Disease relevance. Methylmalonyl-CoA epimerase deficiency (MCEED) [MIM:251120] Autosomal recessive inborn error of amino acid metabolism, involving valine, threonine, isoleucine and methionine. This organic aciduria may present in the neonatal period with life-threatening metabolic acidosis, hyperammonemia, feeding difficulties, pancytopenia and coma. The disease is caused by variants affecting the gene represented in this entry.
Similarity. Belongs to the methylmalonyl-CoA epimerase family.
RefSeq proteins (1): NP_115990* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR017515 | MeMalonyl-CoA_epimerase | Family |
| IPR029068 | Glyas_Bleomycin-R_OHBP_Dase | Homologous_superfamily |
| IPR037523 | VOC_core | Domain |
| IPR051785 | MMCE/EMCE_epimerase | Family |
Pfam: PF13669
Enzyme classification (BRENDA):
- EC 5.1.99.1 — methylmalonyl-CoA epimerase (BRENDA: 12 organisms, 16 substrates, 14 inhibitors, 4 Km, 2 kcat entries)
Substrate kinetics (BRENDA)
4 substrates with measured Km, best-characterized 4. Km ranges are aggregated across organisms/conditions.
| Substrate | Km (mM) | Measurements |
|---|---|---|
| (2S)-ETHYLMALONYL-COA | 0.04 | 1 |
| (S)-METHYLMALONYL-COA | 0.08 | 1 |
| DL-METHYLMALONYL-COA | 0.1 | 1 |
| METHYLMALONYL-COA | 0.079 | 1 |
Catalyzed reactions (Rhea), 1 shown:
- (R)-methylmalonyl-CoA = (S)-methylmalonyl-CoA (RHEA:20553)
UniProt features (23 total): strand 7, helix 5, binding site 3, modified residue 3, sequence variant 2, transit peptide 1, chain 1, domain 1
Structure
Experimental structures (PDB)
2 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 3RMU | X-RAY DIFFRACTION | 1.8 |
| 6QH4 | X-RAY DIFFRACTION | 1.92 |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q96PE7-F1 | 87.27 | 0.75 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Ligand- & substrate-binding residues (3): 50; 122; 172
Post-translational modifications (3): 114, 150, 150
Function
Pathways and Gene Ontology
Reactome pathways
5 pathways
| ID | Pathway |
|---|---|
| R-HSA-71032 | Propionyl-CoA catabolism |
| R-HSA-1430728 | Metabolism |
| R-HSA-556833 | Metabolism of lipids |
| R-HSA-77289 | Mitochondrial Fatty Acid Beta-Oxidation |
| R-HSA-8978868 | Fatty acid metabolism |
MSigDB gene sets: 224 (showing top):
GOBP_FATTY_ACID_CATABOLIC_PROCESS, GRAESSMANN_APOPTOSIS_BY_DOXORUBICIN_UP, GRAESSMANN_RESPONSE_TO_MC_AND_DOXORUBICIN_UP, GOBP_ORGANOPHOSPHATE_METABOLIC_PROCESS, GOBP_NUCLEOSIDE_PHOSPHATE_BIOSYNTHETIC_PROCESS, GOBP_MONOCARBOXYLIC_ACID_METABOLIC_PROCESS, GOBP_ORGANOPHOSPHATE_BIOSYNTHETIC_PROCESS, KEGG_VALINE_LEUCINE_AND_ISOLEUCINE_DEGRADATION, GOBP_NUCLEOBASE_CONTAINING_SMALL_MOLECULE_METABOLIC_PROCESS, GOBP_SHORT_CHAIN_FATTY_ACID_METABOLIC_PROCESS, GOBP_SULFUR_COMPOUND_BIOSYNTHETIC_PROCESS, GOBP_AMIDE_METABOLIC_PROCESS, GOBP_ORGANIC_ACID_CATABOLIC_PROCESS, GOBP_AMIDE_BIOSYNTHETIC_PROCESS, ZHOU_INFLAMMATORY_RESPONSE_LIVE_DN
GO Biological Process (2): short-chain fatty acid catabolic process (GO:0019626), L-methylmalonyl-CoA metabolic process (GO:0046491)
GO Molecular Function (4): methylmalonyl-CoA epimerase activity (GO:0004493), metal ion binding (GO:0046872), protein binding (GO:0005515), isomerase activity (GO:0016853)
GO Cellular Component (2): mitochondrion (GO:0005739), mitochondrial matrix (GO:0005759)
Reactome top-level categories
Rollup of top-4 pathways:
| Category | Pathways |
|---|---|
| Mitochondrial Fatty Acid Beta-Oxidation | 1 |
| Metabolism | 1 |
| Fatty acid metabolism | 1 |
| Metabolism of lipids | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| fatty acid catabolic process | 1 |
| short-chain fatty acid metabolic process | 1 |
| acyl-CoA metabolic process | 1 |
| racemase and epimerase activity | 1 |
| cation binding | 1 |
| binding | 1 |
| catalytic activity | 1 |
| cytoplasm | 1 |
| intracellular membrane-bounded organelle | 1 |
| mitochondrion | 1 |
| intracellular organelle lumen | 1 |
Protein interactions and networks
STRING
2274 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| MCEE | SPR | P35270 | 926 |
| MCEE | MMUT | P22033 | 921 |
| MCEE | MMAA | Q8IVH4 | 911 |
| MCEE | MMADHC | Q9H3L0 | 801 |
| MCEE | MMAB | Q96EY8 | 794 |
| MCEE | CBR1 | P16152 | 766 |
| MCEE | PCCB | P05166 | 673 |
| MCEE | DHFR2 | Q86XF0 | 664 |
| MCEE | PCCA | P05165 | 626 |
| MCEE | AKR1B1 | P15121 | 625 |
| MCEE | MMACHC | Q9Y4U1 | 593 |
| MCEE | LMBRD1 | Q9NUN5 | 583 |
| MCEE | DHFR | P00374 | 551 |
| MCEE | QDPR | P09417 | 518 |
| MCEE | HMGCL | P35914 | 496 |
| MCEE | PCBD1 | P61457 | 496 |
IntAct
32 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| MCEE | AGTRAP | psi-mi:“MI:0915”(physical association) | 0.720 |
| MCEE | CMTM5 | psi-mi:“MI:0915”(physical association) | 0.720 |
| CMTM5 | MCEE | psi-mi:“MI:0915”(physical association) | 0.720 |
| AGTRAP | MCEE | psi-mi:“MI:0915”(physical association) | 0.720 |
| AGTRAP | MCEE | psi-mi:“MI:0915”(physical association) | 0.670 |
| CMTM5 | MCEE | psi-mi:“MI:0915”(physical association) | 0.670 |
| MCEE | CMTM5 | psi-mi:“MI:0915”(physical association) | 0.670 |
| MCEE | STX8 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CD81 | MCEE | psi-mi:“MI:0915”(physical association) | 0.560 |
| MCEE | CLUH | psi-mi:“MI:0914”(association) | 0.530 |
| DYRK1A | TEX13D | psi-mi:“MI:0914”(association) | 0.350 |
| MCEE | ZNF732 | psi-mi:“MI:0914”(association) | 0.350 |
| RPS10 | ZNF646 | psi-mi:“MI:0914”(association) | 0.350 |
| MCEE | AGTRAP | psi-mi:“MI:0915”(physical association) | 0.000 |
| MCEE | CMTM5 | psi-mi:“MI:0915”(physical association) | 0.000 |
| STX8 | MCEE | psi-mi:“MI:0915”(physical association) | 0.000 |
| CD81 | MCEE | psi-mi:“MI:0915”(physical association) | 0.000 |
BioGRID (14): MCEE (Two-hybrid), CMTM5 (Two-hybrid), AGTRAP (Two-hybrid), CMTM5 (Two-hybrid), MCEE (Two-hybrid), CMTM5 (Two-hybrid), STX8 (Two-hybrid), AGTRAP (Two-hybrid), DBT (Affinity Capture-MS), ZNF732 (Affinity Capture-MS), MCEE (Affinity Capture-MS), CLUH (Affinity Capture-MS), MCEE (Affinity Capture-MS), APP (Reconstituted Complex)
ESM2 similar proteins: A0A0U2WCB2, A6NK44, A6QLI6, A8XX92, A9NNH7, B9FK36, O42764, P05165, P07997, P08680, P0DTA4, P13196, P13446, P14882, P16635, P22557, P43090, P54889, Q19842, Q28CR0, Q2KIZ3, Q2QMG2, Q42523, Q42777, Q4KLB0, Q4WHU1, Q502D1, Q553V2, Q5I0C3, Q5R557, Q5R7K1, Q5R9R9, Q612F5, Q63147, Q6CDR5, Q6JQN1, Q759G5, Q872T7, Q8K370, Q91ZA3
Diamond homologs: O58010, P54540, Q2KIZ3, Q3IZP4, Q553V2, Q96PE7, Q9D1I5
SIGNOR signaling
0 interactions.
Disease & clinical
Clinical variants and AI predictions
ClinVar
142 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 6 |
| Likely pathogenic | 5 |
| Uncertain significance | 43 |
| Likely benign | 58 |
| Benign | 18 |
Top pathogenic / likely-pathogenic (11)
| Variant ID | HGVS | Classification |
|---|---|---|
| 2343 | NM_032601.4(MCEE):c.139C>T (p.Arg47Ter) | Pathogenic |
| 2830026 | NM_032601.4(MCEE):c.19dup (p.Ala7fs) | Pathogenic |
| 2992461 | NM_032601.4(MCEE):c.49dup (p.Ser17fs) | Pathogenic |
| 3645072 | NM_032601.4(MCEE):c.208_209insCCGGGCGCGGTGGCTCACGCCTGTAATCCCAGCACTTTGGGAGGCCGAGGCGGGCGGATCACGAGGTCAGGNNNNNNNNNNAAAAAAAAAAAAAAAAAAAAAAGAATATTCTGG (p.Gly70delinsAlaGlyArgGlyGlySerArgLeuTer) | Pathogenic |
| 3645773 | NM_032601.4(MCEE):c.102_105dup (p.Asp36fs) | Pathogenic |
| 833393 | NC_000002.12:g.(?71109950)(71130239_?)del | Pathogenic |
| 2443797 | NM_032601.4(MCEE):c.379-644A>G | Likely pathogenic |
| 2735271 | NM_032601.4(MCEE):c.375_378+4del | Likely pathogenic |
| 2771364 | NM_032601.4(MCEE):c.40+1G>T | Likely pathogenic |
| 3247278 | NC_000002.11:g.(?71351316)(71351693_?)dup | Likely pathogenic |
| 3586905 | NM_032601.4(MCEE):c.40+1G>A | Likely pathogenic |
SpliceAI
761 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 2:71110121:ACC:A | acceptor_loss | 1.0000 |
| 2:71110124:T:C | acceptor_gain | 1.0000 |
| 2:71110764:TATGG:T | donor_gain | 1.0000 |
| 2:71110765:A:AC | donor_gain | 1.0000 |
| 2:71110765:ATGGA:A | donor_gain | 1.0000 |
| 2:71110766:T:C | donor_gain | 1.0000 |
| 2:71124539:AAGCC:A | acceptor_gain | 1.0000 |
| 2:71130140:C:CA | donor_gain | 1.0000 |
| 2:71110119:CCAC:C | acceptor_gain | 0.9900 |
| 2:71110120:CAC:C | acceptor_gain | 0.9900 |
| 2:71110120:CACC:C | acceptor_gain | 0.9900 |
| 2:71110123:C:CC | acceptor_gain | 0.9900 |
| 2:71110124:T:TC | acceptor_gain | 0.9900 |
| 2:71110713:A:AC | donor_gain | 0.9900 |
| 2:71110714:C:CC | donor_gain | 0.9900 |
| 2:71110761:A:AC | donor_gain | 0.9900 |
| 2:71110762:C:CC | donor_gain | 0.9900 |
| 2:71124540:AGCC:A | acceptor_gain | 0.9900 |
| 2:71124541:GCC:G | acceptor_gain | 0.9900 |
| 2:71124542:CC:C | acceptor_gain | 0.9900 |
| 2:71124542:CCC:C | acceptor_gain | 0.9900 |
| 2:71124543:CC:C | acceptor_gain | 0.9900 |
| 2:71124544:C:A | acceptor_loss | 0.9900 |
| 2:71124544:C:CC | acceptor_gain | 0.9900 |
| 2:71124545:T:C | acceptor_loss | 0.9900 |
| 2:71130182:A:AC | donor_gain | 0.9900 |
| 2:71130183:C:CC | donor_gain | 0.9900 |
| 2:71130183:CGG:C | donor_gain | 0.9900 |
| 2:71110122:CCT:C | acceptor_gain | 0.9800 |
| 2:71110715:T:C | donor_gain | 0.9800 |
AlphaMissense
1141 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 2:71124212:G:C | C124W | 0.998 |
| 2:71110021:A:C | F160L | 0.997 |
| 2:71110021:A:T | F160L | 0.997 |
| 2:71110023:A:G | F160L | 0.997 |
| 2:71124213:C:T | C124Y | 0.996 |
| 2:71124251:A:C | F111L | 0.996 |
| 2:71124251:A:T | F111L | 0.996 |
| 2:71124253:A:G | F111L | 0.996 |
| 2:71124318:A:T | V89D | 0.995 |
| 2:71124291:A:G | L98P | 0.994 |
| 2:71124434:A:C | H50Q | 0.993 |
| 2:71124434:A:T | H50Q | 0.993 |
| 2:71109983:A:G | L173P | 0.992 |
| 2:71124436:G:C | H50D | 0.992 |
| 2:71109985:T:A | E172D | 0.991 |
| 2:71109985:T:G | E172D | 0.991 |
| 2:71124218:G:C | H122Q | 0.991 |
| 2:71124218:G:T | H122Q | 0.991 |
| 2:71124220:G:C | H122D | 0.991 |
| 2:71110022:A:G | F160S | 0.990 |
| 2:71124219:T:G | H122P | 0.990 |
| 2:71124252:A:G | F111S | 0.990 |
| 2:71124266:A:C | S106R | 0.990 |
| 2:71124266:A:T | S106R | 0.990 |
| 2:71124268:T:G | S106R | 0.990 |
| 2:71124435:T:G | H50P | 0.990 |
| 2:71124320:A:C | F88L | 0.989 |
| 2:71124320:A:T | F88L | 0.989 |
| 2:71124322:A:G | F88L | 0.989 |
| 2:71124214:A:G | C124R | 0.988 |
dbSNP variants (sampled 300 via entrez): RS1000132299 (2:71116791 G>A), RS1000524042 (2:71120456 A>C,G), RS1000594027 (2:71127310 A>G), RS1000640889 (2:71123104 C>T), RS1000769256 (2:71114994 T>G), RS1001028304 (2:71126956 C>T), RS1001691388 (2:71113833 C>A,T), RS1001989046 (2:71112656 G>A,C), RS1002031618 (2:71122284 C>A,T), RS1002057153 (2:71114202 G>A), RS1002079505 (2:71113875 A>T), RS1002083426 (2:71119375 C>A,T), RS1002197913 (2:71119072 C>T), RS1002443269 (2:71112278 A>G), RS1002535269 (2:71117548 A>T)
Disease associations
OMIM: gene MIM:608419 | disease phenotypes: MIM:251120, MIM:251000
GenCC curated gene-disease
| Disease | Classification | Inheritance |
|---|---|---|
| methylmalonic acidemia due to methylmalonyl-CoA epimerase deficiency | Definitive | Autosomal recessive |
ClinGen Gene-Disease Validity (1)
Expert-panel classifications — Definitive > Strong > Moderate > Limited > Disputed > Refuted.
| Disease | Classification | Inheritance |
|---|---|---|
| methylmalonic acidemia due to methylmalonyl-CoA epimerase deficiency | Definitive | AR |
Mondo (2): methylmalonic acidemia due to methylmalonyl-CoA epimerase deficiency (MONDO:0009615), methylmalonic acidemia (MONDO:0002012)
Orphanet (1): Methylmalonic acidemia due to methylmalonyl-CoA epimerase deficiency (Orphanet:308425)
HPO phenotypes
12 total (12 of 12 shown, HPO-id order):
| HPO | Term |
|---|---|
| HP:0000007 | Autosomal recessive inheritance |
| HP:0001257 | Spasticity |
| HP:0001270 | Motor delay |
| HP:0001508 | Failure to thrive |
| HP:0001942 | Metabolic acidosis |
| HP:0001944 | Dehydration |
| HP:0002020 | Gastroesophageal reflux |
| HP:0002160 | Hyperhomocystinemia |
| HP:0002919 | Ketonuria |
| HP:0003593 | Infantile onset |
| HP:0012120 | Methylmalonic aciduria |
| HP:0031544 | Elevated circulating palmitoleylcarnitine concentration |
GWAS associations
2 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST002380_1 | Erythema nodosum in inflammatory bowel disease | 3.000000e-06 |
| GCST009391_1206 | Metabolite levels | 1.000000e-06 |
EFO canonical traits (1, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0010419 | triacylglycerol 54:1 measurement |
MeSH disease descriptors (2)
| Descriptor | Name | Tree numbers |
|---|---|---|
| C537358 | Methylmalonic acidemia (supp.) | |
| C565386 | Methylmalonyl-CoA Epimerase Deficiency (supp.) |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
31 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| bisphenol A | increases expression, decreases expression, increases methylation, affects cotreatment | 2 |
| Acetaminophen | decreases expression | 2 |
| Benzo(a)pyrene | affects methylation, decreases expression | 2 |
| Cyclosporine | decreases expression, increases expression | 2 |
| Aflatoxin B1 | decreases expression | 2 |
| dicrotophos | decreases expression | 1 |
| tris(2-butoxyethyl) phosphate | affects expression | 1 |
| beta-lapachone | decreases expression | 1 |
| sulforaphane | decreases expression | 1 |
| linalool | decreases expression | 1 |
| aflatoxin B2 | decreases methylation | 1 |
| di-n-butylphosphoric acid | affects expression | 1 |
| pentabromodiphenyl ether | increases expression | 1 |
| perfluoro-n-nonanoic acid | decreases expression | 1 |
| K 7174 | decreases expression | 1 |
| 2,2’,4,4’-tetrabromodiphenyl ether | increases expression | 1 |
| Resveratrol | affects cotreatment, increases expression | 1 |
| Sunitinib | decreases expression | 1 |
| Air Pollutants | increases abundance, decreases expression | 1 |
| Atrazine | increases expression | 1 |
| Dexamethasone | affects cotreatment, increases expression | 1 |
| Indomethacin | increases expression, affects cotreatment | 1 |
| Plant Extracts | affects cotreatment, increases expression | 1 |
| Tobacco Smoke Pollution | decreases expression | 1 |
| Tunicamycin | increases expression | 1 |
| Urethane | decreases expression | 1 |
| 1-Methyl-3-isobutylxanthine | affects cotreatment, increases expression | 1 |
| Thapsigargin | increases expression | 1 |
| Okadaic Acid | decreases expression | 1 |
| Copper Sulfate | decreases expression | 1 |
Cellosaurus cell lines
1 cell lines: 1 finite cell line
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_B4DQ | WG3499 | Finite cell line |
Clinical trials (associated diseases)
23 trials via MONDO — disease-level, not drug-specific.
| Trial | Phase | Status | Title |
|---|---|---|---|
| NCT02426775 | PHASE3 | COMPLETED | Carglumic Acid in Methylmalonic Acidemia and Propionic Acidemia |
| NCT07163364 | PHASE3 | NOT_YET_RECRUITING | A Study to Evaluate the Effects and Safety of Hydroxocobalamin in Participants With Combined Methylmalonic Academia (cblC Type) |
| NCT01341379 | PHASE2 | WITHDRAWN | Increasing Ureagenesis in Inborn Errors of Metabolism With N-Carbamylglutamate |
| NCT01597440 | PHASE2 | TERMINATED | Long-term Outcome of N-Carbamylglutamate Treatment in Propionic Acidemia and Methylmalonic Acidemia |
| NCT01599286 | PHASE2 | COMPLETED | Short-Term Outcome of N-Carbamylglutamate in the Treatment of Acute Hyperammonemia |
| NCT04732429 | PHASE2 | TERMINATED | Study of HST5040 in Subjects With Propionic or Methylmalonic Acidemia |
| NCT04836494 | PHASE1 | TERMINATED | A First in Human, Dose Escalation Study to Evaluate the Safety and Tolerability of BBP-671 in Healthy Volunteers and Patients With Propionic Acidemia or Methylmalonic Acidemia |
| NCT03810690 | PHASE1/PHASE2 | WITHDRAWN | Open Label Study of mRNA-3704 in Patients With Isolated Methylmalonic Acidemia |
| NCT04581785 | PHASE1/PHASE2 | TERMINATED | Gene Therapy With hLB-001 in Pediatric Patients With Severe Methylmalonic Acidemia |
| NCT04899310 | PHASE1/PHASE2 | TERMINATED | A Study to Assess the Safety, Pharmacokinetics, and Pharmacodynamics of mRNA-3705 in Participants With Isolated Methylmalonic Acidemia |
| NCT05295433 | PHASE1/PHASE2 | RECRUITING | An Extension Study to Evaluate the Long-Term Safety and Clinical Activity of mRNA-3705 in Participants Previously Enrolled in Other Clinical Studies of mRNA-3705 |
| NCT05778877 | PHASE1/PHASE2 | WITHDRAWN | A Study to Evaluate the Safety, Tolerability, and Pharmacodynamics of SEL-302 in Pediatric Subjects With MMA |
| NCT00078078 | Not specified | RECRUITING | Clinical and Laboratory Study of Methylmalonic Acidemia |
| NCT01289158 | Not specified | UNKNOWN | Combined Malonic and Methylmalonic Aciduria (CMAMMA): Gene Identification and Outcome Study |
| NCT03484767 | Not specified | COMPLETED | The MaP Study: Mapping the Patient Journey in MMA and PA |
| NCT03655223 | Not specified | ENROLLING_BY_INVITATION | Early Check: Expanded Screening in Newborns |
| NCT04176523 | Not specified | RECRUITING | Understanding the Long-Term Management of Organic Acidemia Patients With CARBAGLU®: A Mixed Methods Approach |
| NCT05040178 | Not specified | RECRUITING | An Observational Study of Carbaglu® for the Treatment of MMA and PA in Adults and Pediatrics |
| NCT05330039 | Not specified | COMPLETED | Characterization of Intestinal Microbiota in Children With Inborn Errors of Metabolism (IEM) |
| NCT05438485 | Not specified | TERMINATED | Natural History Study of Patients With Methylmalonic Acidemia and Propionic Acidemia |
| NCT05506254 | Not specified | ACTIVE_NOT_RECRUITING | Long-term Follow-up Study of Patients Who Received hLB-001 Gene Therapy |
| NCT06664840 | Not specified | NOT_YET_RECRUITING | MyRareDiet A Novel Diet Tracking Tool |
| NCT07432880 | Not specified | NOT_YET_RECRUITING | A Prospective Study of Pediatric Participants up to 16 Years of Age With Methylmalonic Acidemia (MMA) Due to Mutations in the MMUT Gene |
Related Atlas pages
- Associated diseases: methylmalonic acidemia due to methylmalonyl-CoA epimerase deficiency
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): methylmalonic acidemia, methylmalonic acidemia due to methylmalonyl-CoA epimerase deficiency