SH3BP1 — SH3 domain binding protein 1
SH3BP1 belongs to a gene co-expression module in 4 of 28 SCUBA cell types. Each module groups genes that rise and fall together in that cell type; the genes it shares a module with are its closest co-expression partners there.
SH3BP1's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| CD4⁺ T cells | Th17 lineage Th17 fate | ADA, ARHGEF3, CD226, CD52, DENND3, EVL, IDH2, IL17RE +13 more | View in SCUBA |
| Innate lymphoid cells | Actin Cytoskeleton Dynamics Cytoskeleton & motility | ACTN4, ALDH9A1, APBB1IP, ARHGAP10, CDC37, CXXC5, FAM136A, FERMT3 +26 more | View in SCUBA |
| Mucosal-associated invariant T cell | Cytoskeletal Remodeling Migration migration & adhesion | ADAM8, BIN2, C11orf21, CAPN1, CAPN2, CD52, CDC25B, CNN2 +14 more | |
| Natural Killer cells | Resident NK cells Gut residency | ANXA11, APBB1IP, CD151, CXXC5, HMOX2, LSP1, MPG, PPDPF +4 more | View in SCUBA |
About the gene
| Synonyms | ARHGAP43 |
|---|---|
| Chromosome | 22: 37634654-37656117 |
| Predicted location | Intracellular |
| Essential gene | No |
| Protein class | Metabolic proteins, Predicted intracellular proteins |
| Molecular function | GTPase activation |
| Biological process | Phagocytosis |
Function
GTPase activating protein (GAP) which specifically converts GTP-bound Rho-type GTPases including RAC1 and CDC42 in their inactive GDP-bound form. By specifically inactivating RAC1 at the leading edge of migrating cells, it regulates the spatiotemporal organization of cell protrusions which is important for proper cell migration. Also negatively regulates CDC42 in the process of actin remodeling and the formation of epithelial cell junctions. Through its GAP activity toward RAC1 and/or CDC42 plays a specific role in phagocytosis of large particles. Specifically recruited by a PI3 kinase/PI3K-dependent mechanism to sites of large particles engagement, inactivates RAC1 and/or CDC42 allowing the reorganization of the underlying actin cytoskeleton required for engulfment. It also plays a role in angiogenesis and the process of repulsive guidance as part of a semaphorin-plexin signaling pathway. Following the binding of PLXND1 to extracellular SEMA3E it dissociates from PLXND1 and inactivates RAC1, inducing the intracellular reorganization of the actin cytoskeleton and the collapse of cells.
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.