MYO9B Gene Summary [Human]

This gene encodes a member of the myosin family of actin-based molecular motor heavy chain proteins. The protein represents an unconventional myosin; it should not be confused with the conventional non-muscle myosin-9 (MYH9). The protein has four IQ motifs located in the neck domain that bind calmodulin, which serves as a light chain. The protein complex has a single-headed structure and exhibits processive movement on actin filaments toward the minus-end. The protein also has rho-GTPase activity. Polymorphisms in this gene are associated with celiac disease and ulcerative colitis susceptibility. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011]

Details

Type
Protein Coding
Official Symbol
MYO9B
Official Name
myosin IXB [Source:HGNC Symbol;Acc:HGNC:7609]
Ensembl ID
ENSG00000099331
Bio databases IDs NCBI: 4650 Ensembl: ENSG00000099331
Aliases myosin IXB
Synonyms CELIAC4, FLJ11339, Myosin IXB, MYR5, Unconventional myosin 3
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human MYO9B often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • RhoGAP domain
  • IQ (isoleucine-glutamine) motif containing G and D (IQCG and IQCD)
  • ADP binding
  • ATP binding
  • microfilament motor protein
  • GTPase activator
  • enzyme
  • GTPase Activating Protein domain
  • RhoGAP
  • GTPase-activator protein for Rho-like GTPases
  • ATPase
  • proline rich domain
  • Calmodulin-binding motif
  • zinc ion binding
  • actin binding
  • protein kinase C conserved region 1 (C1 domain) superfamily
  • ATP-dependent protein binding
  • tail domain
  • calmodulin binding
  • Myosin and Kinesin motor domain
  • enzyme binding
  • protein binding
  • receptor binding
  • acidic domain
  • Myosin head (motor domain)
  • IQ calmodulin-binding motif
  • actin filament binding
  • Ubl1_cv_Nsp3_N-like
  • zinc finger domain
  • motor protein
  • Myosin

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • cancer
  • epithelial cancer
  • lung adenocarcinoma
  • lung adenocarcinoma formation
  • colorectal cancer
  • respiratory disorder
  • coronary artery disease
  • gastric ulcer
  • prostatic carcinoma
  • prostate cancer
regulated by
regulates
role in cell
  • expression in
  • proliferation
  • recruitment
  • polarization
  • number
  • motility
  • migration
  • cell spreading
  • invasion by
  • phagocytosis by

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Cytoplasm
  • ruffle
  • cytoskeleton
  • perinuclear region
  • actin cytoskeleton
  • cell cortex
  • actin filaments
  • cytosol
  • filopodia
  • lamellipodia

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human MYO9B gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • Roundabout signaling pathway
  • regulation of Rho protein signal transduction
  • regulation of small GTPase mediated signal transduction
  • ARF protein signal transduction
  • lamellipodium morphogenesis
  • Rho protein signal transduction
  • actin filament-based movement

Cellular Component

Where in the cell the gene product is active
  • myosin complex
  • perinuclear region of cytoplasm
  • cytoplasm
  • cell cortex
  • membrane
  • actin cytoskeleton
  • ruffle
  • cytosol
  • actin filament
  • lamellipodium

Molecular Function

What the gene product does at the molecular level
  • ATPase activity
  • protein homodimerization activity
  • GTPase activator activity
  • ADP binding
  • microfilament motor activity
  • actin filament binding
  • ATP binding
  • Roundabout binding
  • calmodulin binding
  • protein binding
  • actin binding
  • metal ion binding
  • small GTPase binding

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.