Aliases for DOCK3 Gene
External Ids for DOCK3 Gene
Previous GeneCards Identifiers for DOCK3 Gene
This gene is specifically expressed in the central nervous system (CNS). It encodes a member of the DOCK (dedicator of cytokinesis) family of guanine nucleotide exchange factors (GEFs). This protein, dedicator of cytokinesis 3 (DOCK3), is also known as modifier of cell adhesion (MOCA) and presenilin-binding protein (PBP). The DOCK3 and DOCK1, -2 and -4 share several conserved amino acids in their DHR-2 (DOCK homology region 2) domains that are required for GEF activity, and bind directly to WAVE proteins [Wiskott-Aldrich syndrome protein (WASP) family Verprolin-homologous proteins] via their DHR-1 domains. The DOCK3 induces axonal outgrowth in CNS by stimulating membrane recruitment of the WAVE complex and activating the small G protein Rac1. This gene is associated with an attention deficit hyperactivity disorder-like phenotype by a complex chromosomal rearrangement. [provided by RefSeq, Aug 2010]
GeneCards Summary for DOCK3 Gene
DOCK3 (Dedicator Of Cytokinesis 3) is a Protein Coding gene. Diseases associated with DOCK3 include Attention Deficit-Hyperactivity Disorder and Alzheimer Disease. Among its related pathways are Presenilin-Mediated Signaling and Response to elevated platelet cytosolic Ca2+. Gene Ontology (GO) annotations related to this gene include binding and guanyl-nucleotide exchange factor activity. An important paralog of this gene is DOCK4.
UniProtKB/Swiss-Prot for DOCK3 Gene
Potential guanine nucleotide exchange factor (GEF). GEF proteins activate some small GTPases by exchanging bound GDP for free GTP. Its interaction with presenilin proteins as well as its ability to stimulate Tau/MAPT phosphorylation suggest that it may be involved in Alzheimer disease. Ectopic expression in nerve cells decreases the secretion of amyloid-beta APBA1 protein and lowers the rate of cell-substratum adhesion, suggesting that it may affect the function of some small GTPase involved in the regulation of actin cytoskeleton or cell adhesion receptors (By similarity).