MYO1A
Unconventional myosin-Ia
Also known as: BBMI, DFNA48, MYHL, MYO1A_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9UBC5
- Gene
- MYO1A
- Ensembl
- ENSG00000166866
- Chromosome
- 12
- Canonical length
- 1043 aa
- Protein class
- Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm
OverviewNCBI Gene
This gene encodes a member of the myosin superfamily. The protein represents an unconventional myosin; it should not be confused with the conventional skeletal muscle myosin-1 (MYH1). Unconventional myosins contain the basic domains characteristic of conventional myosins and are further distinguished from class members by their tail domains. They function as actin-based molecular motors. Mutations in this gene have been associated with autosomal dominant deafness. Alternatively spliced variants have been found for this gene. [provided by RefSeq, Dec 2011]
Canonical amino-acid sequenceUniProt
1043 residues, UniProt reviewed canonical sequence.
>Q9UBC5|MYO1A
1 MPLLEGSVGV EDLVLLEPLV EESLLKNLQL RYENKEIYTY IGNVVISVNP YQQLPIYGPE
61 FIAKYQDYTF YELKPHIYAL ANVAYQSLRD RDRDQCILIT GESGSGKTEA SKLVMSYVAA
121 VCGKGEQVNS VKEQLLQSNP VLEAFGNAKT IRNNNSSRFG KYMDIEFDFK GSPLGGVITN
181 YLLEKSRLVK QLKGERNFHI FYQLLAGADE QLLKALKLER DTTGYAYLNH EVSRVDGMDD
241 ASSFRAVQSA MAVIGFSEEE IRQVLEVTSM VLKLGNVLVA DEFQASGIPA SGIRDGRGVR
301 EIGEMVGLNS EEVERALCSR TMETAKEKVV TALNVMQAQY ARDALAKNIY SRLFDWIVNR
361 INESIKVGIG EKKKVMGVLD IYGFEILEDN SFEQFVINYC NEKLQQVFIE MTLKEEQEEY
421 KREGIPWTKV DYFDNGIICK LIEHNQRGIL AMLDEECLRP GVVSDSTFLA KLNQLFSKHG
481 HYESKVTQNA QRQYDHTMGL SCFRICHYAG KVTYNVTSFI DKNNDLLFRD LLQAMWKAQH
541 PLLRSLFPEG NPKQASLKRP PTAGAQFKSS VAILMKNLYS KSPNYIRCIK PNEHQQRGQF
601 SSDLVATQAR YLGLLENVRV RRAGYAHRQG YGPFLERYRL LSRSTWPHWN GGDREGVEKV
661 LGELSMSSGE LAFGKTKIFI RSPKTLFYLE EQRRLRLQQL ATLIQKIYRG WRCRTHYQLM
721 RKSQILISSW FRGNMQKKCY GKIKASVLLI QAFVRGWKAR KNYRKYFRSE AALTLADFIY
781 KSMVQKFLLG LKNNLPSTNV LDKTWPAAPY KCLSTANQEL QQLFYQWKCK RFRDQLSPKQ
841 VEILREKLCA SELFKGKKAS YPQSVPIPFC GDYIGLQGNP KLQKLKGGEE GPVLMAEAVK
901 KVNRGNGKTS SRILLLTKGH VILTDTKKSQ AKIVIGLDNV AGVSVTSLKD GLFSLHLSEM
961 SSVGSKGDFL LVSEHVIELL TKMYRAVLDA TQRQLTVTVT EKFSVRFKEN SVAVKVVQGP
1021 AGGDNSKLRY KKKGSHCLEV TVQLocalizationUniProt · AlphaFold · HPA
Whether an antibody against MYO1A can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.28
- Highest tissue expression
- 311 nTPM
Expression across tissuesHPA
Tissue
- duodenum: 311 nTPM
- small intestine: 292 nTPM
- colon: 64 nTPM
- rectum: 62 nTPM
- stomach: 15 nTPM
- spinal cord: 13 nTPM
Single-cell type
- enterocytes: 368 nCPM
- colonocytes: 67 nCPM
- enteric transient amplifying cells: 60 nCPM
- tuft cells: 58 nCPM
- goblet cells: 39 nCPM
- enteric stem cells: 28 nCPM
Immune cell
- myeloid DC: 0.6 nTPM
- classical monocyte: 0.2 nTPM
- intermediate monocyte: 0.2 nTPM
- basophil: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
Brain region
- white matter: 17 nTPM
- spinal cord: 7.7 nTPM
- medulla oblongata: 4.6 nTPM
- midbrain: 4.1 nTPM
- pons: 4 nTPM
- cerebellum: 1.9 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about MYO1A.
Disease | AllUniProt
Conditions MYO1A is implicated in, by any mechanism.
- Diarrhea 15, congenital (DIAR15) MIM:621179
Disease | GeneticClinVar
1 pathogenic / likely-pathogenic of 253 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Diarrhea 15, congenital
- Congenital diarrhea
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.33
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.5
- DepMap mean gene effect
- -0.23
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- actin filament organization
- actin filament-based movement
- endocytosis
- microvillus assembly
- sensory perception of sound
- vesicle localization
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- IQ motif, EF-hand binding site
- Myosin head, motor domain-like
- Class I myosin tail homology domain
- P-loop containing nucleoside triphosphate hydrolase
- Class I myosin, motor domain
- Kinesin motor domain superfamily
- Myosin head (motor domain)
- IQ calmodulin-binding motif
- Unconventional myosin tail, actin- and lipid-binding
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads MYO1A as an antibody target. Whether an autoantibody or antibody against MYO1A could matter depends on whether native MYO1A is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
MYO1A is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label MYO1A as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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