APC-Linked Polyclonal Antibody to Myosin Heavy Chain 9, Non Muscle (MYH9)

This gene encodes a conventional non-muscle myosin; this protein should not be confused with the unconventional myosin-9a or 9b (MYO9A or MYO9B). The encoded protein is a myosin IIA heavy chain that contains an IQ domain and a myosin head-like domain which is involved in several important functions, including cytokinesis, cell motility and maintenance of cell shape. Defects in this gene have been associated with non-syndromic sensorineural deafness autosomal dominant type 17, Epstein syndrome, Alport syndrome with macrothrombocytopenia, Sebastian syndrome, Fechtner syndrome and macrothrombocytopenia with progressive sensorineural deafness. [provided by RefSeq, Dec 2011]

MYH9: Cellular myosin that appears to play a role in cytokinesis, cell shape, and specialized functions such as secretion and capping. Interacts with PDLIM2. Interacts with SLC6A4. 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. Interacts with DDR1. Interacts with SVIL and HTRA3. In the kidney, expressed in the glomeruli. Also expressed in leukocytes. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Motor; Motility/polarity/chemotaxis; Actin-binding

Chromosomal Location of Human Ortholog: 22q13.1

Cellular Component: cortical cytoskeleton; signalosome; protein complex; myosin II complex; leading edge; contractile ring; immunological synapse; actomyosin; cytosol; actin cytoskeleton; ruffle; cell-cell adherens junction; membrane; cytoplasm; plasma membrane; stress fiber; spindle; uropod; integrin complex; neuromuscular junction; nucleus; cleavage furrow

Molecular Function: actin filament binding; calmodulin binding; microfilament motor activity; protein binding; protein homodimerization activity; protein anchor; ATPase activity; motor activity; actin binding; ADP binding; actin-dependent ATPase activity; ATP binding

Biological Process: integrin-mediated signaling pathway; axon guidance; blood vessel endothelial cell migration; monocyte differentiation; actin filament-based movement; in utero embryonic development; actomyosin structure organization and biogenesis; membrane protein ectodomain proteolysis; cytokinesis; uropod organization and biogenesis; regulation of cell shape; establishment of meiotic spindle localization; protein transport; actin cytoskeleton reorganization; ephrin receptor signaling pathway; establishment of T cell polarity; angiogenesis; platelet formation; leukocyte migration; myoblast fusion; meiotic spindle organization and biogenesis

Disease: Deafness, Autosomal Dominant 17; May-hegglin Anomaly; Fechtner Syndrome; Macrothrombocytopenia And Progressive Sensorineural Deafness; Epstein Syndrome; Sebastian Syndrome