MYO5B

gene
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Also known as KIAA1119

Summary

MYO5B (myosin VB, HGNC:7603) is a protein-coding gene on chromosome 18q21.1, encoding Unconventional myosin-Vb (Q9ULV0). May be involved in vesicular trafficking via its association with the CART complex.

The protein encoded by this gene, together with other proteins, may be involved in plasma membrane recycling. Mutations in this gene are associated with microvillous inclusion disease.

Source: NCBI Gene 4645 — RefSeq curated summary.

At a glance

  • Gene–disease (curated): microvillus inclusion disease (Definitive, GenCC) — +3 more curated relationships
  • GWAS associations: 29
  • Clinical variants (ClinVar): 1,760 total — 72 pathogenic, 32 likely-pathogenic
  • Phenotypes (HPO): 35
  • Dosage sensitivity (ClinGen): haploinsufficiency autosomal recessive, triplosensitivity no evidence
  • MANE Select transcript: NM_001080467

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:7603
Approved symbolMYO5B
Namemyosin VB
Location18q21.1
Locus typegene with protein product
StatusApproved
AliasesKIAA1119
Ensembl geneENSG00000167306
Ensembl biotypeprotein_coding
OMIM606540
Entrez4645

Gene structure

Transcript identifiers

Ensembl transcripts: 13 — 6 protein_coding, 4 protein_coding_CDS_not_defined, 3 retained_intron

ENST00000285039, ENST00000324581, ENST00000585859, ENST00000586036, ENST00000587895, ENST00000589568, ENST00000592688, ENST00000697217, ENST00000697218, ENST00000697219, ENST00000697220, ENST00000697221, ENST00000908785

RefSeq mRNA: 1 — MANE Select: NM_001080467 NM_001080467

CCDS: CCDS42436

Canonical transcript exons

ENST00000285039 — 40 exons

ExonStartEnd
ENSE000015917004992951249929598
ENSE000015992234993724549937397
ENSE000016021914995431349954435
ENSE000016036264996226649962406
ENSE000016196775003685050036994
ENSE000016202734999228849992431
ENSE000016213114990259449902833
ENSE000016240624985344949853647
ENSE000016372904997435049974615
ENSE000016424774984136549841454
ENSE000016487234989494149895174
ENSE000016614704998471849984825
ENSE000016688874983751749837802
ENSE000016790484991206249912173
ENSE000016860514984714649847289
ENSE000017126034986322749863327
ENSE000017136484985681349856890
ENSE000017194644999043949990520
ENSE000017314294984324149843392
ENSE000017321954995326049953343
ENSE000017331414990467249904828
ENSE000017341304987894549879090
ENSE000017457364984956749849660
ENSE000017512524988037149880455
ENSE000017614265000125550001411
ENSE000017645864987776349877882
ENSE000017764394996294949963030
ENSE000017954404998044449980553
ENSE000018023815004014350040314
ENSE000018029694983914449839294
ENSE000018032964990641949906630
ENSE000022197274982278949826623
ENSE000022966584993625249936349
ENSE000023025845019476750195147
ENSE000034613544986414149864380
ENSE000034746544987216749872232
ENSE000035317754987568749875827
ENSE000035346834983534449835424
ENSE000035834305005526850055378
ENSE000036752794983671149836885

Expression profiles

Bgee: expression breadth ubiquitous, 228 present calls, max score 97.95.

FANTOM5 (CAGE): breadth broad, TPM avg 6.0165 / max 243.7830, expressed in 834 samples.

FANTOM5 promoters (10 alternative TSS)

Promoter IDTPM avgSamples expressed
1719372.3570536
1719341.1889394
1719401.0030507
1719390.6724430
1719330.4105186
1719310.182083
1719380.106150
1719320.081536
1719360.01173
1719350.00321

Top tissues by expression

257 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
ileal mucosaUBERON:000033197.95gold quality
lower esophagus mucosaUBERON:003583496.03gold quality
jejunal mucosaUBERON:000039995.58gold quality
pancreatic ductal cellCL:000207995.43gold quality
epithelial cell of pancreasCL:000008395.40gold quality
rectumUBERON:000105294.11gold quality
cortical plateUBERON:000534393.88gold quality
mucosa of transverse colonUBERON:000499193.56gold quality
duodenumUBERON:000211492.77gold quality
colonic mucosaUBERON:000031792.75gold quality
islet of LangerhansUBERON:000000692.58gold quality
mucosa of sigmoid colonUBERON:000499392.14gold quality
nasal cavity epitheliumUBERON:000538491.35gold quality
palpebral conjunctivaUBERON:000181290.93gold quality
cartilage tissueUBERON:000241890.56gold quality
oocyteCL:000002390.39gold quality
esophagus mucosaUBERON:000246990.26gold quality
secondary oocyteCL:000065589.42gold quality
bronchial epithelial cellCL:000232889.33gold quality
olfactory segment of nasal mucosaUBERON:000538688.97gold quality
kidney epitheliumUBERON:000481988.86gold quality
skin of legUBERON:000151188.56gold quality
bronchusUBERON:000218588.06gold quality
eyeUBERON:000097087.93gold quality
minor salivary glandUBERON:000183087.73gold quality
skin of abdomenUBERON:000141686.70gold quality
left lobe of thyroid glandUBERON:000112086.47gold quality
thyroid glandUBERON:000204686.40gold quality
pancreasUBERON:000126486.09gold quality
zone of skinUBERON:000001486.00gold quality

Single-cell (SCXA)

Detected in 2 experiment(s), a significant marker in 2.

ExperimentMarker?Max mean expression
E-CURD-7yes957.23
E-ANND-3yes8.76

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

189 targeting MYO5B, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-190A-3P100.0080.355520
HSA-MIR-450A-1-3P100.0069.331837
HSA-MIR-3924100.0072.092394
HSA-MIR-5011-5P100.0083.465820
HSA-MIR-3613-3P100.0076.367965
HSA-MIR-223-3P99.9970.141140
HSA-MIR-453199.9969.703181
HSA-MIR-428299.9975.366408
HSA-MIR-450099.9972.722367
HSA-MIR-3692-3P99.9870.272139
HSA-MIR-569699.9872.364487
HSA-MIR-19A-3P99.9875.332762
HSA-MIR-19B-3P99.9875.442754
HSA-MIR-1213699.9872.815713
HSA-LET-7A-5P99.9872.291790
HSA-LET-7B-5P99.9872.311790
HSA-LET-7C-5P99.9872.291790
HSA-LET-7E-5P99.9872.291790
HSA-LET-7F-5P99.9872.561784
HSA-LET-7G-5P99.9872.371784
HSA-LET-7I-5P99.9872.371788
HSA-MIR-98-5P99.9872.331787
HSA-MIR-548AN99.9770.912817
HSA-MIR-60799.9773.625593
HSA-MIR-302C-5P99.9772.563642
HSA-MIR-551B-5P99.9671.283493
HSA-LET-7D-5P99.9671.761632
HSA-MIR-445899.9671.641650
HSA-MIR-96-5P99.9572.802140
HSA-MIR-1236-3P99.9468.041695

Functional genomics

ClinGen dosage: haploinsufficiency 30 (autosomal recessive), triplosensitivity 0 (no evidence). ClinGen Gene Dosage Map

Literature-anchored findings (GeneRIF, showing 40)

  • Dominant negative approach suggests MYO5B plays a role in plasma membrane recycling (through early endosomes). (PMID:11408590)
  • Data suggest that polarization of hepatocytes requires recruitment of rab11a and myosin Vb to intracellular membranes that contain apical ABC transporters and transcytotic markers. (PMID:16214890)
  • myosin Vb is required for CFTR recycling in Rab11a-specific apical recycling endosomes in polarized human airway epithelial cells (PMID:17462998)
  • MYO5B mutations cause microvillus inclusion disease and disrupt epithelial cell polarity. (PMID:18724368)
  • A shared homozygous mutation in MYO5B in seven affected Navajos with the expected heterozygosity in five parents, was identified. (PMID:19006234)
  • related Rab protein, Rab10, can interact with myosin Va, myosin Vb, and myosin Vc (PMID:19008234)
  • Myosin Vb was present in nucleoli where it co-localises with RNA polymerase I, and newly synthesised ribosomal RNA. Vb was also found to physically associate with RNA polymerase I and actin in co-immunoprecipitation experiments. (PMID:19610025)
  • 15 novel nonsense and missense mutations in MYO5B in 11 unrelated microvillus inclusion disease patients;MYO5B mutations are a major cause of disease (PMID:20186687)
  • Molecular analysis of the MYO5B gene is helpful in genetic counseling and prenatal diagnosis of recurrent microvillus inclusion disease in subsequent pregnancies. (PMID:21199752)
  • Our functional analysis indicates that MYO5B mutations can be correlated with an aberrant subcellular distribution of the myosin Vb protein, and apical recycling endosomes… (PMID:21206382)
  • In polarized epithelial cyst cultures, Myo5B was required for apical membrane trafficking and de novo lumen formation, dependent on association with both Rab8a and Rab11a. (PMID:21282656)
  • Inactivation of MYO5B by siRNA against MYO5B can promote cell proliferation, invasion and motility.The expression of MYO5B was downregulated in gastric cancer and inactivation of MYO5B may contribute to tumorigenesis. (PMID:22134786)
  • Rab11A/myosin Vb/Rab11-FIP2 complex frames two late recycling steps of langerin from the ERC to the plasma membrane (PMID:22420646)
  • MYO5B mutations have divergent effects on the apical membrane system in kidney and intestinal epithelial cells. (PMID:22441677)
  • MYO5B is epigenetically silenced in gastric cancer cells by DNA methylation and histone modification. Inactivation of MYO5B in gastric cancer cells expressing MYO5B inhibits HGF-stimulated MET degradation with sustained c-MET levels and signaling. (PMID:23456500)
  • The data of this study supported that the MYO5B gene might be associated with schizophrenia in the Chinese Han population. (PMID:23561489)
  • the cargo-binding domain (CBD) structures of the three human MyoV paralogs (Va, Vb, and Vc), revealing subtle structural changes that drive functional differentiation and a novel redox mechanism controlling the CBD dimerization process (PMID:24097982)
  • Loss of MYO5b causes loss of apical microvilli, formation of inclusion bodies an protein trafficking defects in CaCo2 cells. (PMID:24138727)
  • several crystal structures of the myosin Va or the myosin Vb globular tail domain that gives insights into how the motor is linked to the recycling membrane compartments via Rab11 or the melanophilin adaptor that binds to Rab27a. (PMID:24248336)
  • Structural insights into the globular tails of the human type v myosins Myo5a, Myo5b, And Myo5c. (PMID:24339992)
  • MYO5B-rs555879 is a risk factor for dyslexia in a German cohort. (PMID:24373531)
  • Cholestasis in microvillus inclusion disease results from impairment of the MYO5B/RAB11A apical recycling endosome pathway in hepatocytes, altered targeting of bile export pump to the canalicular membrane, and increased ileal bile acid absorption. (PMID:24375397)
  • Part of the machinery for ezrin activation depends on recycling endosomes controlled by myosin Vb and Rab11a. (PMID:24413175)
  • Microvilli establishment required interaction between RAB8A and MYO5B, while loss of the interaction between RAB11A and MYO5B induced microvillus inclusions. (PMID:24892806)
  • Report changes in polarized signaling resulting from Myo5b loss-of-function mutations in microvillus inclusion disease. (PMID:25258405)
  • GLUT5 required an interaction cascade of Rab11, Myo5B, Slp4a, Munc18-2, and Vamp7 with Stx3. (PMID:26553929)
  • Three novel genes were identified as recurrently mutated; MYCN, MYO5B and VCL, and mutations in these genes were exclusively found in malignant sympathetic paraganglioma tumors. (PMID:26650627)
  • Myosin Vb regulates the Cu(+)-stimulated delivery of ATP7B to the apical domain of polarized hepatic cells. (PMID:26823605)
  • findings show for the first time that MYO5B deficiency may lead to cholestasis without microvillus inclusion disease (PMID:27532546)
  • MYO5B deficiency may underlie 20% of previously undiagnosed low-gamma-glutamyltransferase cholestasis. MYO5B deficiency appears to impair targeting of bile salt export pump to the canalicular membrane with hampered bile acid excretion, resulting in a spectrum of cholestasis without diarrhea. (PMID:28027573)
  • Data suggest that single-headed myosin-5B is intermediate-duty ratio motor with kinetic ATPase cycle, rate-limited by phosphate release; in transition to high-duty ratio motor, second head generates strain/gating in myosin-5B dimer that alter kinetic signature by slowing actin-activated ADP release to become rate-limiting; myosin-5B mutations cause microvillus inclusion disease and impact myosin motor function. (PMID:28882893)
  • Data suggest that membrane tethering mediated by endosomal RAB11A is drastically and selectively stimulated by its cognate Rab effectors, class V myosins (MYO5A and MYO5B), in a GTP-dependent manner. (RAB11A = ras-related GTPase Rab-11A; MYO5 = myosin class V) (PMID:28939769)
  • this study demonstrates the essential role of Myo5b in maintaining the epidermal barrier integrity (PMID:30660668)
  • Authors identified a novel role for MYO5B in the regulation of late endosome size control and identify the inability to control late endosome size as an unexpected novel mechanism underlying defects in cell division orientation and epithelial architecture. (PMID:31682603)
  • A Molecular Mechanism Underlying Genotype-Specific Intrahepatic Cholestasis Resulting From MYO5B Mutations. (PMID:31750554)
  • Mutations in Myosin 5B in Children With Early-onset Cholestasis. (PMID:32304554)
  • MYO5B mutations in pheochromocytoma/paraganglioma promote cancer progression. (PMID:32511227)
  • Unequal Effects of Myosin 5B Mutations in Liver and Intestine Determine the Clinical Presentation of Low-Gamma-Glutamyltransferase Cholestasis. (PMID:32583448)
  • MYO5B-associated diseases: Novel liver-related variants and genotype-phenotype correlation. (PMID:34811877)
  • Novel MYO5B mutation in microvillous inclusion disease of Syrian ancestry. (PMID:34815247)

Cross-species orthologs

3 orthologs

OrganismSymbolGene ID
danio_reriomyo5bENSDARG00000062003
mus_musculusMyo5bENSMUSG00000025885
rattus_norvegicusMyo5bENSRNOG00000014104

Paralogs (44): MYH13 (ENSG00000006788), MYO16 (ENSG00000041515), MYO9A (ENSG00000066933), MYO3B (ENSG00000071909), MYH7B (ENSG00000078814), MYO15A (ENSG00000091536), MYH7 (ENSG00000092054), MYO3A (ENSG00000095777), MYO9B (ENSG00000099331), MYH9 (ENSG00000100345), MYH14 (ENSG00000105357), MYH1 (ENSG00000109061), MYH3 (ENSG00000109063), MYH2 (ENSG00000125414), MYO1B (ENSG00000128641), MYO5C (ENSG00000128833), CGNL1 (ENSG00000128849), MYH8 (ENSG00000133020), MYH10 (ENSG00000133026), MYH11 (ENSG00000133392), MYO18B (ENSG00000133454), CCDC102A (ENSG00000135736), MYO1G (ENSG00000136286), MYO7A (ENSG00000137474), MYO1F (ENSG00000142347), CGN (ENSG00000143375), TMF1 (ENSG00000144747), MYH15 (ENSG00000144821), MYO10 (ENSG00000145555), CCDC102B (ENSG00000150636), MYO1E (ENSG00000157483), CCDC158 (ENSG00000163749), MYO1A (ENSG00000166866), MYO7B (ENSG00000169994), MYO1H (ENSG00000174527), MYO1D (ENSG00000176658), MYO18A (ENSG00000196535), MYO6 (ENSG00000196586), MYO5A (ENSG00000197535), MYH6 (ENSG00000197616)

Protein

Protein identifiers

Unconventional myosin-VbQ9ULV0 (reviewed: Q9ULV0)

All UniProt accessions (4): A0A0A0MR36, A0A8V8TKV2, A0A8V8TM52, Q9ULV0

UniProt curated annotations — full annotation on UniProt →

Function. May be involved in vesicular trafficking via its association with the CART complex. The CART complex is necessary for efficient transferrin receptor recycling but not for EGFR degradation. Required in a complex with RAB11A and RAB11FIP2 for the transport of NPC1L1 to the plasma membrane. Together with RAB11A participates in CFTR trafficking to the plasma membrane and TF (transferrin) recycling in nonpolarized cells. Together with RAB11A and RAB8A participates in epithelial cell polarization. Together with RAB25 regulates transcytosis. Required for proper localization of bile salt export pump ABCB11 at the apical/canalicular plasma membrane of hepatocytes.

Subunit / interactions. Component of the CART complex, at least composed of ACTN4, HGS/HRS, MYO5B and TRIM3. Interacts with RAB11FIP2, RAB11A, and RAB8A. Found in a complex with CFTR and RAB11A. Interacts with NPC1L1;. Interacts with LIMA1.

Subcellular location. Cytoplasm.

Disease relevance. Diarrhea 2, with microvillus atrophy, with or without cholestasis (DIAR2) [MIM:251850] A disease characterized by onset of intractable life-threatening watery diarrhea during infancy. Two forms are recognized: early-onset microvillus inclusion disease with diarrhea beginning in the neonatal period, and late-onset, with first symptoms appearing after 3 or 4 months of life. The disease is caused by variants affecting the gene represented in this entry. Cholestasis, progressive familial intrahepatic, 10 (PFIC10) [MIM:619868] A form of progressive cholestasis, a disorder characterized by early onset of cholestasis that progresses to hepatic fibrosis, cirrhosis, and end-stage liver disease. PFIC10 is an autosomal recessive form with highly variable phenotype and severity, manifesting in the first months or years of life. The disease is caused by variants affecting the gene represented in this entry.

Similarity. Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Myosin family.

Isoforms (3)

UniProt IDNamesCanonical?
Q9ULV0-11yes
Q9ULV0-22
Q9ULV0-33

RefSeq proteins (1): NP_001073936* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR000048IQ_motif_EF-hand-BSBinding_site
IPR001609Myosin_head_motor_dom-likeDomain
IPR002710Dilute_domDomain
IPR004009SH3_MyosinDomain
IPR027417P-loop_NTPaseHomologous_superfamily
IPR036103MYSc_Myo5Domain
IPR036961Kinesin_motor_dom_sfHomologous_superfamily
IPR037990Myo5b_CBDDomain
IPR058662Myo5a/b_domDomain

Pfam: PF00063, PF00612, PF01843, PF25966

UniProt features (123 total): sequence variant 66, helix 23, domain 9, region of interest 5, mutagenesis site 4, turn 3, splice variant 3, strand 2, modified residue 2, coiled-coil region 2, compositionally biased region 2, chain 1, binding site 1

Structure

Experimental structures (PDB)

4 structures.

PDBMethodResolution (Å)
4J5MX-RAY DIFFRACTION2.07
4LX0X-RAY DIFFRACTION2.19
4LWZX-RAY DIFFRACTION2.55
4LNZX-RAY DIFFRACTION3.11

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q9ULV0-F175.810.18

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 (1): 163–170

Post-translational modifications (2): 1, 1446

Mutagenesis-validated functional residues (4):

PositionPhenotype
1300abolishes interaction with rab8a and has no effect on rab11a interaction; when associated with c-1307.
1307abolishes interaction with rab8a and has no effect on rab11a interaction; when associated with l-1300.
1714abolishes interaction with rab11a; has no effect on rab8a interaction.
1748abolishes interaction with rab11a; has no effect on rab8a interaction.

Function

Pathways and Gene Ontology

Reactome pathways

3 pathways

IDPathway
R-HSA-432040Vasopressin regulates renal water homeostasis via Aquaporins
R-HSA-382551Transport of small molecules
R-HSA-445717Aquaporin-mediated transport

MSigDB gene sets: 251 (showing top): BENPORATH_ES_WITH_H3K27ME3, GOBP_VESICLE_MEDIATED_TRANSPORT, GOMF_GTPASE_BINDING, MARTINEZ_RB1_TARGETS_UP, CHARAFE_BREAST_CANCER_BASAL_VS_MESENCHYMAL_UP, KYNG_DNA_DAMAGE_BY_GAMMA_RADIATION, GOBP_ACTIN_FILAMENT_ORGANIZATION, GOMF_CYTOSKELETAL_MOTOR_ACTIVITY, GOBP_RENAL_WATER_HOMEOSTASIS, GOBP_MULTICELLULAR_ORGANISMAL_LEVEL_HOMEOSTASIS, GOMF_ACTIN_BINDING, GOBP_IMPORT_INTO_CELL, MARTINEZ_RB1_AND_TP53_TARGETS_UP, GOBP_ENDOCYTOSIS, GOBP_REGULATION_OF_BODY_FLUID_LEVELS

GO Biological Process (6): renal water homeostasis (GO:0003091), endocytosis (GO:0006897), actin filament organization (GO:0007015), protein transport (GO:0015031), vesicle-mediated transport (GO:0016192), endosomal transport (GO:0016197)

GO Molecular Function (9): microfilament motor activity (GO:0000146), calmodulin binding (GO:0005516), ATP binding (GO:0005524), small GTPase binding (GO:0031267), actin filament binding (GO:0051015), nucleotide binding (GO:0000166), cytoskeletal motor activity (GO:0003774), actin binding (GO:0003779), protein binding (GO:0005515)

GO Cellular Component (9): cytoplasm (GO:0005737), actin cytoskeleton (GO:0015629), membrane (GO:0016020), myosin complex (GO:0016459), cytoplasmic vesicle membrane (GO:0030659), protein-containing complex (GO:0032991), apical cortex (GO:0045179), extracellular exosome (GO:0070062), recycling endosome (GO:0055037)

Reactome top-level categories

Rollup of top-2 pathways:

CategoryPathways
Aquaporin-mediated transport1
Transport of small molecules1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
vesicle-mediated transport2
transport2
cellular anatomical structure2
renal system process1
multicellular organismal-level water homeostasis1
vesicle budding from membrane1
membrane invagination1
import into cell1
actin cytoskeleton organization1
supramolecular fiber organization1
intracellular protein localization1
establishment of protein localization1
cellular process1
intracellular transport1
cytoskeletal motor activity1
polypeptide conformation or assembly isomerase activity1
ATP-dependent activity1
protein binding1
adenyl ribonucleotide binding1
purine ribonucleoside triphosphate binding1
GTPase binding1
actin binding1
protein-containing complex binding1
nucleoside phosphate binding1
heterocyclic compound binding1
molecular_function1
cytoskeletal protein binding1
binding1
intracellular anatomical structure1
cytoskeleton1
actin cytoskeleton1
protein-containing complex1
vesicle membrane1
cytoplasmic vesicle1
cellular_component1
cell cortex region1
extracellular vesicle1
endosome1

Protein interactions and networks

STRING

3344 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
MYO5BRAB11AP24410999
MYO5BRAB11FIP2Q7L804998
MYO5BRAB8AP24407991
MYO5BOPTNQ96CV9973
MYO5BRAB25P57735931
MYO5BRAB10P61026913
MYO5BRAB11FIP5Q9BXF6900
MYO5BRAB11FIP1Q6WKZ4848
MYO5BEXOC6Q8TAG9752
MYO5BEPCAMP16422723
MYO5BSPINT2O43291705
MYO5BFMN2Q9NZ56694
MYO5BRAB3IPQ96QF0675
MYO5BNEUROG3Q9Y4Z2651
MYO5BSTX3Q13277640

IntAct

112 interactions, top by confidence:

ABTypeScore
SMARCB1ARID1Apsi-mi:“MI:0914”(association)0.860
CFTRESYT2psi-mi:“MI:0914”(association)0.710
MAPK7PFDN6psi-mi:“MI:0914”(association)0.640
MYO5BBNIP2psi-mi:“MI:0915”(physical association)0.560
MYO5BTCF4psi-mi:“MI:0915”(physical association)0.560
BNIP2MYO5Bpsi-mi:“MI:0915”(physical association)0.560
MYO5BTRIM54psi-mi:“MI:0915”(physical association)0.560
MYO5BAMOTL2psi-mi:“MI:0915”(physical association)0.560
TRIM54MYO5Bpsi-mi:“MI:0915”(physical association)0.560
AMOTL2MYO5Bpsi-mi:“MI:0915”(physical association)0.560
TCF4MYO5Bpsi-mi:“MI:0915”(physical association)0.560
DKK3NME4psi-mi:“MI:0914”(association)0.530
PEX19FAM20Bpsi-mi:“MI:0914”(association)0.530
MYL2MYL5psi-mi:“MI:0914”(association)0.530
CDR2IGSF3psi-mi:“MI:0914”(association)0.530
CFTRPLEKHG3psi-mi:“MI:0914”(association)0.480

BioGRID (148): MYO5B (Two-hybrid), TCF4 (Two-hybrid), AMOTL2 (Two-hybrid), TRIM54 (Two-hybrid), MYO5B (Affinity Capture-MS), RAB11FIP2 (Reconstituted Complex), MYO5B (Affinity Capture-MS), MYO5B (Affinity Capture-MS), MYO5B (Affinity Capture-MS), MYO5B (Co-fractionation), MYO5B (Affinity Capture-MS), MYO5B (Affinity Capture-MS), MYO5B (Affinity Capture-MS), MYO5B (Affinity Capture-MS), MYO5B (Affinity Capture-MS)

ESM2 similar proteins: B2RTY4, E7EZG2, E7F3F0, F4I507, F4JIU4, F4K0A6, O23653, O43502, O43795, O81770, P00860, P09057, P11926, P21271, P27117, P27118, P27119, P27120, P46735, P70569, Q02440, Q05096, Q13459, Q33DR3, Q5VQ09, Q63358, Q6ZLP5, Q86YH6, Q8C170, Q8R2J9, Q8W0Z9, Q99104, Q9FL12, Q9FZ06, Q9FZL4, Q9LFG8, Q9LHE9, Q9LPC6, Q9LYU8, Q9M8Z7

Diamond homologs: A2AQP0, A7E2Y1, F1PT61, F4I507, F4I5Q6, F4IVR7, G3UW82, K7U9N8, O08638, O14157, O94477, P02563, P02564, P02565, P02566, P02567, P04461, P05659, P05661, P08799, P08964, P10587, P11055, P12844, P12845, P12847, P12882, P12883, P13533, P13535, P13538, P13539, P13540, P13541, P13542, P14105, P19524, P21271, P24733, P32492

SIGNOR signaling

0 interactions.

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 121 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.

Reactome pathways:

PathwayPartnersFoldFDR
RHO GTPases activate PAKs643.5×2e-06
RHO GTPases activate CIT540.1×2e-05
Striated Muscle Contraction624.7×2e-05
RHO GTPases activate PKNs521.1×4e-04
Translocation of SLC2A4 (GLUT4) to the plasma membrane612.3×7e-04

GO biological processes:

GO termPartnersFoldFDR
actin filament organization89.4×2e-03
actin cytoskeleton organization86.3×7e-03

Disease & clinical

Clinical variants and AI predictions

ClinVar

1760 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic72
Likely pathogenic32
Uncertain significance743
Likely benign635
Benign159

Top pathogenic / likely-pathogenic (30)

Variant IDHGVSClassification
1031041NM_001080467.3(MYO5B):c.2641C>T (p.Gln881Ter)Pathogenic
1073731NM_001080467.3(MYO5B):c.4126C>T (p.Gln1376Ter)Pathogenic
1075058NM_001080467.3(MYO5B):c.3502del (p.Glu1168fs)Pathogenic
1301570NM_001080467.3(MYO5B):c.2062C>T (p.Arg688Ter)Pathogenic
1358635NM_001080467.3(MYO5B):c.3961G>T (p.Gly1321Ter)Pathogenic
1389337NM_001080467.3(MYO5B):c.3190C>T (p.Arg1064Ter)Pathogenic
1412155NM_001080467.3(MYO5B):c.3550del (p.Gln1184fs)Pathogenic
1419232NM_001080467.3(MYO5B):c.3873G>A (p.Trp1291Ter)Pathogenic
1454816NM_001080467.3(MYO5B):c.1087C>T (p.Arg363Ter)Pathogenic
1679140NM_001080467.3(MYO5B):c.4090C>T (p.Gln1364Ter)Pathogenic
1686942NM_001080467.3(MYO5B):c.274C>T (p.Arg92Cys)Pathogenic
1686943NM_001080467.3(MYO5B):c.2395C>T (p.Arg799Trp)Pathogenic
1686944NM_001080467.3(MYO5B):c.2414+5G>TPathogenic
1686945NM_001080467.3(MYO5B):c.356A>G (p.Tyr119Cys)Pathogenic
1686950NM_001080467.3(MYO5B):c.2259_2262dup (p.Tyr755fs)Pathogenic
1686951NM_001080467.3(MYO5B):c.1222A>T (p.Ile408Phe)Pathogenic
1686952NM_001080467.3(MYO5B):c.1582C>T (p.Leu528Phe)Pathogenic
1686955NM_001080467.3(MYO5B):c.1489A>T (p.Ile497Phe)Pathogenic
1686956NM_001080467.3(MYO5B):c.1720G>T (p.Glu574Ter)Pathogenic
1686957NM_001080467.3(MYO5B):c.3538-1G>APathogenic
1686959NM_001080467.3(MYO5B):c.1021C>T (p.Gln341Ter)Pathogenic
1686961NM_001080467.3(MYO5B):c.1860dup (p.Met621fs)Pathogenic
1686963NM_001080467.3(MYO5B):c.28-2A>GPathogenic
1686964NM_001080467.3(MYO5B):c.4366C>T (p.Gln1456Ter)Pathogenic
1686965NM_001080467.3(MYO5B):c.4460-1G>CPathogenic
1686966NM_001080467.3(MYO5B):c.1540T>C (p.Cys514Arg)Pathogenic
1686967NM_001080467.3(MYO5B):c.2330del (p.Gly777fs)Pathogenic
1908602NM_001080467.3(MYO5B):c.896_897dup (p.Asp300fs)Pathogenic
1934311NM_001080467.3(MYO5B):c.5277del (p.Ile1760fs)Pathogenic
1974743NM_001080467.3(MYO5B):c.3823C>T (p.Arg1275Ter)Pathogenic

SpliceAI

7024 predictions. Top by Δscore:

VariantEffectΔscore
18:49835339:CTCA:Cdonor_loss1.0000
18:49835340:TCA:Tdonor_loss1.0000
18:49835341:CA:Cdonor_loss1.0000
18:49835342:A:ACdonor_gain1.0000
18:49835343:C:CCdonor_gain1.0000
18:49835343:C:CTdonor_loss1.0000
18:49835421:CAAT:Cacceptor_gain1.0000
18:49835424:TCT:Tacceptor_loss1.0000
18:49835424:TCTGT:Tacceptor_loss1.0000
18:49835425:C:CCacceptor_gain1.0000
18:49835425:C:Tacceptor_loss1.0000
18:49835425:CTGTT:Cacceptor_loss1.0000
18:49835426:T:Aacceptor_loss1.0000
18:49835426:T:Gacceptor_loss1.0000
18:49837512:CTTAC:Cdonor_loss1.0000
18:49837514:TACCT:Tdonor_loss1.0000
18:49837515:ACCT:Adonor_loss1.0000
18:49837516:C:CTdonor_loss1.0000
18:49837798:AGAAA:Aacceptor_gain1.0000
18:49837799:GAAA:Gacceptor_gain1.0000
18:49837800:AAA:Aacceptor_gain1.0000
18:49837801:AA:Aacceptor_gain1.0000
18:49837803:C:CCacceptor_gain1.0000
18:49837803:CT:Cacceptor_loss1.0000
18:49837804:T:Gacceptor_loss1.0000
18:49841450:TGCTT:Tacceptor_gain1.0000
18:49841451:GCTTC:Gacceptor_loss1.0000
18:49841452:CTT:Cacceptor_gain1.0000
18:49841453:TT:Tacceptor_gain1.0000
18:49841453:TTC:Tacceptor_loss1.0000

AlphaMissense

12287 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
18:49836787:A:GL1746P1.000
18:49837539:A:GW1706R1.000
18:49837539:A:TW1706R1.000
18:49837565:A:GL1697P1.000
18:49929569:A:GL678P1.000
18:49936284:G:CC657W1.000
18:49936286:A:GC657R1.000
18:49936327:A:GL643P1.000
18:49962358:A:GW485R1.000
18:49962358:A:TW485R1.000
18:49962379:A:GY478H1.000
18:49962387:T:GQ475P1.000
18:49962955:G:CF466L1.000
18:49962955:G:TF466L1.000
18:49962957:A:GF466L1.000
18:49962968:A:GL462P1.000
18:49962985:G:CN456K1.000
18:49962985:G:TN456K1.000
18:49963027:A:CF442L1.000
18:49963027:A:TF442L1.000
18:49963029:A:GF442L1.000
18:49974350:C:TG441E1.000
18:49974351:C:AG441W1.000
18:49974359:T:AD438V1.000
18:49974359:T:GD438A1.000
18:49974362:A:GL437P1.000
18:49992384:A:CF220L1.000
18:49992384:A:TF220L1.000
18:49992386:A:GF220L1.000
18:49992390:G:CS218R1.000

dbSNP variants (sampled 300 via entrez): RS1000003697 (18:50111121 G>A,T), RS1000003925 (18:49963967 C>T), RS1000007109 (18:49845877 G>A), RS1000007470 (18:49894726 T>C), RS1000010916 (18:50036831 G>A), RS1000013236 (18:50146666 A>G), RS1000020857 (18:50118648 G>A,T), RS1000029906 (18:50109276 G>A), RS1000030308 (18:50188889 A>G), RS1000033745 (18:49852496 C>G,T), RS1000039556 (18:50042728 CGGT>C), RS1000041210 (18:50001696 G>A,C), RS1000046410 (18:49883458 T>C), RS1000048744 (18:49990754 T>C), RS1000053977 (18:50074342 T>C)

Disease associations

OMIM: gene MIM:606540 | disease phenotypes: MIM:251850, MIM:619868, MIM:266600

GenCC curated gene-disease

DiseaseClassificationInheritance
microvillus inclusion diseaseDefinitiveAutosomal recessive
cholestasis, progressive familial intrahepatic, 10StrongAutosomal recessive
digestive system disorderStrongAutosomal recessive
progressive familial intrahepatic cholestasis type 1SupportiveAutosomal recessive

Mondo (5): microvillus inclusion disease (MONDO:0009635), cholestasis, progressive familial intrahepatic, 10 (MONDO:0030810), inflammatory bowel disease 1 (MONDO:0009960), progressive familial intrahepatic cholestasis type 1 (MONDO:0008892), digestive system disorder (MONDO:0004335)

Orphanet (1): Microvillus inclusion disease (Orphanet:2290)

HPO phenotypes

35 total (30 of 35 shown, HPO-id order):

HPOTerm
HP:0000007Autosomal recessive inheritance
HP:0000121Nephrocalcinosis
HP:0000952Jaundice
HP:0000989Pruritus
HP:0001263Global developmental delay
HP:0001508Failure to thrive
HP:0001510Growth delay
HP:0001522Death in infancy
HP:0001744Splenomegaly
HP:0001942Metabolic acidosis
HP:0001944Dehydration
HP:0002014Diarrhea
HP:0002240Hepatomegaly
HP:0002242Abnormal intestine morphology
HP:0002908Conjugated hyperbilirubinemia
HP:0003073Hypoalbuminemia
HP:0003124Hypercholesterolemia
HP:0003270Abdominal distention
HP:0003573Increased total bilirubin
HP:0003593Infantile onset
HP:0003623Neonatal onset
HP:0004322Short stature
HP:0004385Protracted diarrhea
HP:0004395Malnutrition
HP:0006580Portal fibrosis
HP:0011106Hypovolemia
HP:0011463Childhood onset
HP:0011472Abnormal small intestinal villus morphology
HP:0011473Villous atrophy
HP:0011985Acholic stools

GWAS associations

29 associations (top):

StudyTraitp-value
GCST003997_41Myopia2.000000e-16
GCST005446_3Total cholesterol levels in HDL2.000000e-06
GCST005446_4Total cholesterol levels in HDL2.000000e-06
GCST005455_15Mean diameter of HDL particles2.000000e-08
GCST005455_16Mean diameter of HDL particles2.000000e-08
GCST005455_17Mean diameter of HDL particles3.000000e-08
GCST005497_12Large HDL particle concentration4.000000e-09
GCST005497_13Large HDL particle concentration4.000000e-09
GCST005497_14Large HDL particle concentration1.000000e-08
GCST005499_1Phospholipid levels in large HDL3.000000e-09
GCST005499_19Phospholipid levels in large HDL3.000000e-09
GCST005499_2Phospholipid levels in large HDL1.000000e-08
GCST005503_3Medium HDL particle concentration1.000000e-08
GCST005503_4Medium HDL particle concentration1.000000e-08
GCST005504_14Phospholipid levels in medium HDL3.000000e-08
GCST005504_4Phospholipid levels in medium HDL2.000000e-08
GCST005504_5Phospholipid levels in medium HDL2.000000e-08
GCST005513_6Apolipoprotein A1 levels8.000000e-09
GCST005513_7Apolipoprotein A1 levels8.000000e-09
GCST005513_8Apolipoprotein A1 levels4.000000e-08
GCST006186_2Systolic blood pressure x smoking status (current vs non-current) interaction (1df test)8.000000e-06
GCST006195_92Systolic blood pressure x smoking status (current vs non-current) interaction (2df test)2.000000e-08
GCST006291_35Spherical equivalent or myopia (age of diagnosis)2.000000e-12
GCST009100_1Resistant hypertension6.000000e-08
GCST009597_197Multiple sclerosis3.000000e-06
GCST010002_139Refractive error4.000000e-60
GCST010241_184Apolipoprotein A1 levels2.000000e-28
GCST010242_287HDL cholesterol levels1.000000e-26
GCST012419_8Longevity (100 years and older)5.000000e-08

EFO canonical traits (6, from GWAS)

EFO IDTrait name
EFO:0004612high density lipoprotein cholesterol measurement
EFO:0004614apolipoprotein A 1 measurement
EFO:0006335systolic blood pressure
EFO:0006527smoking status measurement
EFO:0004847age at onset
EFO:1002006treatment-resistant hypertension

MeSH disease descriptors (1)

DescriptorNameTree numbers
D005767Gastrointestinal DiseasesC06.405

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

49 total (human), top 30 by PubMed support.

ChemicalActions (top 5)PubMed papers
Valproic Acidaffects cotreatment, increases expression, increases methylation7
Benzo(a)pyreneaffects methylation, decreases expression, increases methylation6
Tobacco Smoke Pollutionaffects expression, increases expression, increases methylation3
sodium arseniteincreases expression, affects expression2
Air Pollutantsincreases abundance, increases expression2
Calcitriolincreases expression, affects cotreatment2
Tretinoindecreases expression, increases expression2
Aflatoxin B1decreases expression, increases methylation2
GSK-J4decreases expression1
methylmercuric chloridedecreases expression1
bisphenol Adecreases methylation1
pyrogallol 1,3-dimethyl etheraffects cotreatment, affects localization, decreases expression1
trichostatin Aincreases expression1
beta-lapachoneincreases expression1
2,3-bis(3’-hydroxybenzyl)butyrolactoneaffects cotreatment, decreases expression1
aflatoxin B2decreases methylation1
perfluorooctane sulfonic aciddecreases expression1
CGP 52608affects binding, increases reaction1
entinostatincreases expression1
4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamideaffects cotreatment, increases expression1
abrineincreases expression1
Grape Seed Proanthocyanidinsaffects cotreatment, decreases expression1
dorsomorphinaffects cotreatment, increases expression1
bisphenol Sincreases methylation1
jinfukangaffects cotreatment, decreases expression1
Sunitinibincreases expression1
Arsenic Trioxideincreases expression1
Panobinostataffects cotreatment, increases expression1
Acetaminophendecreases expression1
Caffeineincreases phosphorylation1

Cellosaurus cell lines

2 cell lines: 2 cancer cell line

First 10 cell lines (id-ordered, not curated):

CellosaurusNameCategorySex
CVCL_SZ66HAP1 MYO5B (-) 1Cancer cell lineMale
CVCL_XQ82HAP1 MYO5B (-) 2Cancer cell lineMale

Clinical trials (associated diseases)

183 trials via MONDO — disease-level, not drug-specific.

TrialPhaseStatusTitle
NCT01318928PHASE4UNKNOWNThe Treatment of Periodontal Diseases
NCT02267681PHASE4COMPLETEDOpioid Effects on Cognitive Function Following Colonoscopy
NCT02764671PHASE4UNKNOWNSafety and Immunogenicity of Recombinant Hepatitis B Vaccines in the Neonates
NCT03646292PHASE4COMPLETEDAntidiabetic Drugs for Steatotic Liver Disease
NCT03723447PHASE4COMPLETEDIntraoperative TAP Block With Bupivacaine/Dexamethasone Against Liposomal Bupivacaine (Exparel®)
NCT06271538PHASE4RECRUITINGEvaluation of Efficacy of Skål Pro Powder on Symptoms of Irritable Bowel Syndrome
NCT03353454PHASE3WITHDRAWNA Placebo-controlled Study of Maralixibat (SHP625) in Pediatric Subjects With Progressive Familial Intrahepatic Cholestasis (PFIC)
NCT03566238PHASE3COMPLETEDThis Study Will Investigate the Efficacy and Safety of A4250 in Children With PFIC Types 1 or 2
NCT03659916PHASE3COMPLETEDLong Term Safety & Efficacy Study Evaluating The Effect of A4250 in Children With PFIC
NCT03905330PHASE3COMPLETEDA Study to Evaluate the Efficacy and Safety of Maralixibat in Subjects With Progressive Familial Intrahepatic Cholestasis (MARCH-PFIC)
NCT04185363PHASE3COMPLETEDAn Extension Study of Maralixibat in Patients With Progressive Familial Intrahepatic Cholestasis (PFIC)
NCT05543187PHASE3COMPLETEDA Study of TAK-625 for the Treatment of Progressive Familial Intrahepatic Cholestasis (PFIC)
NCT01009593PHASE3TERMINATEDEfficacy and Tolerability of ABT-869 Versus Sorafenib in Advanced Hepatocellular Carcinoma (HCC)
NCT01304394PHASE3COMPLETEDSafety During Use of Paediatric Triple Chamber Bag Formulas
NCT01485328PHASE3COMPLETEDProtocol: Phytomedicine-AMARGOL®, Clinical Trial for Efficacy Proof on Therapeutics
NCT01696734PHASE3RECRUITINGDomperidone in Treating Patients With Gastrointestinal Disorders
NCT01964430PHASE3COMPLETEDNab-paclitaxel and Gemcitabine vs Gemcitabine Alone as Adjuvant Therapy for Patients With Resected Pancreatic Cancer (the Apact Study)
NCT03008460PHASE3COMPLETEDEfficacy, Safety and Tolerability of Eziclen®/Izinova® Versus Klean-prep® on Bowel Cleansing in Adolescents Undergoing Colonoscopy
NCT03509220PHASE3COMPLETEDSafety and Efficacy of PBK-1701TC for Bowel Cleansing Before Colonoscopy
NCT05923918PHASE3UNKNOWNA Study to Evaluate Safety and Efficacy of PBK_M2101
NCT06817161PHASE3RECRUITINGBenefit of Transcutaneous Auricular Vagus Nerve Stimulation in Improving Quality of Life in First Line Treatment of Ovarian Cancer:
NCT07076641PHASE3NOT_YET_RECRUITINGEfficacy and Safety of Intravenous Lidocaine Versus Placebo in Patients Receiving Morphine-rachi Analgesia
NCT07114406PHASE3NOT_YET_RECRUITINGA Study to Evaluate Safety and Efficacy of PBK_M2502
NCT07222800PHASE3RECRUITINGSymbiotic-GI-03: A Study to Learn About the Study Medicine Called PF-08634404 in Combination With Chemotherapy in Adult Participants With Metastatic Colorectal Cancer
NCT01585155PHASE3COMPLETEDClinical Study of TA-650 in Pediatric Patients With Ulcerative Colitis
NCT06721871PHASE2RECRUITINGAscending Doses of Crofelemer Powder for Oral Solution in Pediatric Microvillus Inclusion Disease (MVID)
NCT02057718PHASE2COMPLETEDOpen Label Study to Evaluate Efficacy and Long Term Safety of LUM001 (Maralixibat) in the Treatment of Cholestatic Liver Disease in Patients With Progressive Familial Intrahepatic Cholestasis
NCT04729751PHASE2COMPLETEDA Study to Evaluate the Safety and Tolerability of Maralixibat in Infant Participants With Cholestatic Liver Diseases Including Progressive Familial Intrahepatic Cholestasis (PFIC) and Alagille Syndrome (ALGS).
NCT00072943PHASE2COMPLETEDA Humanized Anti-Interferon-γ Monoclonal Antibody (HuZAF) for Moderate to Severe Crohn’s Disease
NCT01037049PHASE2UNKNOWNOptimum Timing for Surgery After Pre-operative Radiotherapy 6 vs 12 Weeks
NCT01695850PHASE2COMPLETEDA Double-blinded,Double-dummy Clinical Trial of Chinese Herbal Medicine (MaZiRenWan) for Functional Constipation
NCT02189707PHASE2COMPLETEDEffects of Probiotic Supplementation on Colonic Transit Time and Gastrointestinal Symptoms in Adults With Constipation.
NCT02613403PHASE2TERMINATEDEfficacy and Safety of Grazoprevir (+) Uprifosbuvir (+) Ruzasvir (MK-3682B) (MK-5172 + MK-3682 + MK-8408) Fixed Dose Combination in Chronic HCV Participants Failing Prior Antiviral Treatment (MK-3682-021)
NCT02647866PHASE2COMPLETEDStudy of a Monoclonal Antibody KHK4083 in Moderate Ulcerative Colitis
NCT03011255PHASE2UNKNOWNCombination of Radiation Therapy and Peptide Specific CTL Therapy in Treating Patients With Esophageal Cancer
NCT03408886PHASE2ACTIVE_NOT_RECRUITINGMicrobiota Transfer Therapy for Adults With Autism Spectrum Disorder (ASD) Who Have Gastrointestinal Disorders
NCT03549494PHASE2COMPLETEDEvaluation of Ocoxin®-Viusid® in Advanced Stomach Cancer and Gastric Esophagogastric Junction
NCT03559543PHASE2COMPLETEDEvaluation of Ocoxin®-Viusid® in Metastatic Colorectal Adenocarcinoma
NCT03644069PHASE2UNKNOWNA Study of the Safety, Efficacy and Tolerability of Nexvax-2 in Patients With Celiac Disease (CeD)
NCT03656744PHASE2COMPLETEDA Study of HTD1801 in Adults With Nonalcoholic Steatohepatitis (NASH) and Type 2 Diabetes Mellitus (T2DM)