Dedicator of cytokinesis protein 10

DOCK10
Identifiers
Aliases	DOCK10, DRIP2, Nbla10300, ZIZ3, Dock10, dedicator of cytokinesis 10
External IDs	OMIM: 611518; MGI: 2146320; HomoloGene: 45952; GeneCards: DOCK10; OMA:DOCK10 - orthologs
Gene location (Human) Chr. Chromosome 2 (human)[1] Band 2q36.2 Start 224,765,090 bp[1] End 225,042,468 bp[1]
Gene location (Mouse) Chr. Chromosome 1 (mouse)[2] Band 1|1 C5 Start 80,478,790 bp[2] End 80,736,244 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in corpus callosum internal globus pallidus C1 segment buccal mucosa cell inferior ganglion of vagus nerve spleen granulocyte substantia nigra bone marrow cells subthalamic nucleus Top expressed in mesenteric lymph nodes otolith organ utricle lateral septal nucleus spleen globus pallidus sciatic nerve stroma of bone marrow substantia nigra suprachiasmatic nucleus More reference expression data BioGPS More reference expression data
Gene ontology Molecular function protein binding guanyl-nucleotide exchange factor activity molecular function Cellular component extracellular exosome membrane nucleus cytoplasm cell projection dendritic spine nucleoplasm cytosol intracellular anatomical structure Biological process small GTPase mediated signal transduction regulation of cell migration B cell homeostasis marginal zone B cell differentiation positive regulation of GTPase activity dendritic spine morphogenesis Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 55619 210293 Ensembl ENSG00000135905 ENSMUSG00000038608 UniProt Q96BY6 Q8BZN6 RefSeq (mRNA) NM_001290263 NM_014689 NM_017718 NM_001363762 NM_001285927 NM_175291 RefSeq (protein) NP_001277192 NP_055504 NP_001350691 NP_001272856 NP_780500 NP_001393483 NP_001393484 Location (UCSC) Chr 2: 224.77 – 225.04 Mb Chr 1: 80.48 – 80.74 Mb PubMed search [3] [4]
Wikidata
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Dedicator of cytokinesis protein 10 (Dock10), also known as Zizimin3, is a large (~240 kDa) protein involved in intracellular signalling networks that in humans is encoded by the DOCK10 gene.^[5] It is a member of the DOCK-D subfamily of the DOCK family of guanine nucleotide exchange factors, which function as activators of small G-proteins.

Dock10 was identified via bioinformatic approaches as one of a family of evolutionarily conserved proteins (the DOCK family) that share significant sequence homology.^[6] Dock10 is expressed in peripheral blood leukocytes^[7] as well as in the brain, spleen, lung and thymus.^[8]

Dock10 shares the same domain arrangement as other members of the DOCK-D/Zizimin subfamily as well as a high level of sequence similarity.^[8] It contains a DHR2 domain that is involved in G protein binding and a DHR1 domain, which, in some DOCK family proteins, interacts with membrane phospholipids. Like other DOCK-D subfamily proteins Dock10 contains an N-terminal PH domain, which, in Dock9/Zizimin1, mediates recruitment to the plasma membrane.^[9] The DHR2 domain of Dock10 appears to bind to the small G proteins Cdc42, TC10 and TCL although these interactions are of low affinity.^[8] The physiological role of Dock10 is poorly characterised, however a study in lymphocytes has shown that Dock10 expression is upregulated in B-lymphocytes and Chronic Lymphocytic Leukemia (CLL) cells in response to the cytokine IL-4.^[7] This suggests that Dock10 may have a role in B-cell activation and proliferation. Another study in 2006 identified Dock10 as a protein that was overexpressed in some aggressive papillary thyroid carcinomas.^[10]

• Overview of all the structural information available in the PDB for UniProt: Q96BY6 (Dedicator of cytokinesis protein 10) at the PDBe-KB.