Search Thermo Fisher Scientific
Search Thermo Fisher Scientific
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This antibody was cross-adsorbed to a phosphotyrosine peptide before affinity purification using phospho-Dok1 (Tyr-362) peptide. The purified antibody detects a band at 62 kDa* corresponding to Dok1 in western blots of human Jurkat cells, but does not detect this band after alkaline phosphatase treatment. Similar to Dok1 (Ser-450) antibody, this antibody also detects an 80 kDa band that has not been identified.
Doks are a family of adaptor proteins that include six Dok proteins (Dok1 to Dok6), which have an N-terminal pleckstrin homology domain, a central phosphotyrosine binding domain, and a C-terminal region containing multiple tyrosine residues. When phosphorylated, these tyrosines can serve as docking sites for SH2 domain-containing proteins. Dok1 (p62dok) has been shown to bind Ras-GAP, Nck, and Csk. Several tyrosine phosphorylation sites have been identified for Dok1. One site, Tyr-362 (Tyr-361 mouse), is phosphorylated by c-Abl, is required for Nck binding, and may be critical for filopodia formation during fibroblast spreading on fibronectin. Alternatively, Dok1 activity is also regulated by serine phosphorylation. IkappaB Kinase beta phosphorylates several serine sites including Ser-450 in vitro, and TNFalpha, IL-1, and radiation treatment lead to phosphorylation of Ser-443, Ser-446, and Ser-450 in vivo. Phosphorylation of these serine sites may be required for Dok-mediated inhibition of MAPK signaling and stimulation of cell motility.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: Docking protein 1; docking protein 1, 62kDa (downstream of tyrosine kinase 1); Downstream of tyrosine kinase 1; downstream of tyrosine kinase-1; p62(dok); p62DOK; pp62
Gene Aliases: AW557123; Dok; Dok-1; DOK1; P62DOK; pp62
UniProt ID: (Human) Q99704, (Rat) Q4QQV2, (Mouse) P97465
Entrez Gene ID: (Human) 1796, (Rat) 312477, (Mouse) 13448
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