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Details on Person UniProt:Q8VDD5 Myh9

Class:IdReferenceGeneProduct:238333
_chainChangeLoginitiator methionine:1 added on Sat February 7 2015;chain:2-1960 added on Sat February 7 2015;initiator methionine:1 for 238333 removed on Fri Nov 03 2023;initiator methionine: for 238333 added on Fri Nov 03 2023;initiator methionine: for 238333 removed on Fri Aug 15 2025;initiator methionine:1 for 238333 added on Fri Aug 15 2025
_displayNameUniProt:Q8VDD5 Myh9
_timestamp2025-08-15 22:09:51
chaininitiator methionine:1
chain:2-1960
checksumAAAC0E83A0A4F24A
commentFUNCTION Cellular myosin that appears to play a role in cytokinesis, cell shape, and specialized functions such as secretion and capping (PubMed:19401332). Required for cortical actin clearance prior to oocyte exocytosis (PubMed:31118423). Promotes cell motility in conjunction with S100A4 (By similarity). During cell spreading, plays an important role in cytoskeleton reorganization, focal contact formation (in the margins but not the central part of spreading cells), and lamellipodial retraction; this function is mechanically antagonized by MYH10 (By similarity).SUBUNIT Myosin is a hexameric protein that consists of 2 heavy chain subunits (MHC), 2 alkali light chain subunits (MLC) and 2 regulatory light chain subunits (MLC-2). Interacts with RASIP1 (PubMed:21396893). Interacts with DDR1 (PubMed:19401332). Interacts with PDLIM2 (By similarity). Interacts with SVIL (By similarity). Interacts with HTRA3 (By similarity). Interacts with Myo7a (PubMed:27331610). Interacts with CFAP95 (By similarity). Interacts with LIMCH1; independently of the integration of MYH9 into the myosin complex (By similarity). Interacts with RAB3A (By similarity). Interacts with ZBED4 (By similarity). Interacts with S100A4; this interaction increases cell motility.INTERACTION Colocalizes with actin filaments at lamellipodia margins and at the leading edge of migrating cells (By similarity). In retinal pigment epithelial cells, predominantly localized to stress fiber-like structures with some localization to cytoplasmic puncta (By similarity).DEVELOPMENTAL STAGE In neonatal mouse cochlea, weak levels of expression in both hair cells and supporting cells (at protein level). In the cochlea of six day old mice, expression is restricted to hair cell sterocilia (at protein level).DOMAIN The rodlike tail sequence is highly repetitive, showing cycles of a 28-residue repeat pattern composed of 4 heptapeptides, characteristic for alpha-helical coiled coils.PTM ISGylated.PTM Ubiquitination.DISRUPTION PHENOTYPE Reduced litter size and increased polyspermy in the perivitelline space following fertilization.SIMILARITY Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Myosin family.SEQUENCE CAUTION Extended N-terminus.
created[InstanceEdit:217385] Schmidt, EE, 2008-03-27 06:23:53
descriptionrecommendedName: Myosin-9 alternativeName: Cellular myosin heavy chain, type A alternativeName: Myosin heavy chain 9 alternativeName: Myosin heavy chain, non-muscle IIa alternativeName: Non-muscle myosin heavy chain A shortName: NMMHC-A alternativeName: Non-muscle myosin heavy chain IIa shortName: NMMHC II-a shortName: NMMHC-IIA
geneNameMyh9
identifierQ8VDD5
isSequenceChangedFALSE
keywordAcetylation
Actin-binding
ATP-binding
Calmodulin-binding
Cell adhesion
Cell shape
Coiled coil
Cytoplasm
Cytoplasmic vesicle
Cytoskeleton
Direct protein sequencing
Methylation
Motor protein
Myosin
Nucleotide-binding
Phosphoprotein
Reference proteome
Ubl conjugation
modified[InstanceEdit:354386] Schmidt, EE, 2008-06-18 04:45:12
[InstanceEdit:384350] Kanapin, AA, 2008-11-26 14:00:39
[InstanceEdit:392885] Kanapin, AA, 2009-03-09 12:07:18
[InstanceEdit:400710] Schmidt, EE, 2009-03-25 05:33:35
[InstanceEdit:423310] Kanapin, AA
[InstanceEdit:435478] Kanapin, AA
[InstanceEdit:435871] Kanapin, AA
[InstanceEdit:447347] Kanapin, AA
[InstanceEdit:525883] Kanapin, AA
[InstanceEdit:613449] Kanapin, AA
[InstanceEdit:797602] Kanapin, AA
[InstanceEdit:937368] Yung, CK
[InstanceEdit:1042053] Yung, CK
[InstanceEdit:1220657] Yung, CK
[InstanceEdit:1300696] Yung, CK
[InstanceEdit:1301627] Yung, CK
[InstanceEdit:1551960] Weiser, JD
[InstanceEdit:1995863] Weiser, JD
[InstanceEdit:2132304] Weiser, JD
[InstanceEdit:2265580] Weiser, JD
[InstanceEdit:2455454] Weiser, JD
[InstanceEdit:5263031] Weiser, JD
[InstanceEdit:5433710] Weiser, JD
[InstanceEdit:5618415] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:9027688] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9616384] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9645038] Weiser, JD
[InstanceEdit:9657908] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9706439] Weiser, JD
[InstanceEdit:9730071] Weiser, JD
[InstanceEdit:9750299] Weiser, JD
[InstanceEdit:9773244] Weiser, Joel
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9963647] Weiser, Joel, 2025-08-15
nameMyh9
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierMYH9_MOUSE
Q3UHT9
Q3UHU4
Q6KAN6
Q811I2
sequenceLength1960
species[Species:48892] Mus musculus
(referenceEntity)[EntityWithAccessionedSequence:1449615] Myh9 [cytosol] [Mus musculus]
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No pathways have been reviewed or authored by UniProt:Q8VDD5 Myh9 (238333)