Goat Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 2 (ASAP2) ELISA Kit | ASAP2 elisa kit
Goat Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 2 (ASAP2) ELISA Kit
NCBI and Uniprot Product Information
NCBI Description
This gene encodes a multidomain protein containing an N-terminal alpha-helical region with a coiled-coil motif, followed by a pleckstrin homology (PH) domain, an Arf-GAP domain, an ankyrin homology region, a proline-rich region, and a C-terminal Src homology 3 (SH3) domain. The protein localizes in the Golgi apparatus and at the plasma membrane, where it colocalizes with protein tyrosine kinase 2-beta (PYK2). The encoded protein forms a stable complex with PYK2 in vivo. This interaction appears to be mediated by binding of its SH3 domain to the C-terminal proline-rich domain of PYK2. The encoded protein is tyrosine phosphorylated by activated PYK2. It has catalytic activity for class I and II ArfGAPs in vitro, and can bind the class III Arf ARF6 without immediate GAP activity. The encoded protein is believed to function as an ARF GAP that controls ARF-mediated vesicle budding when recruited to Golgi membranes. In addition, it functions as a substrate and downstream target for PYK2 and SRC, a pathway that may be involved in the regulation of vesicular transport. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2008]
Uniprot Description
DDEF2: Activates the small GTPases ARF1, ARF5 and ARF6. Regulates the formation of post-Golgi vesicles and modulates constitutive secretion. Modulates phagocytosis mediated by Fc gamma receptor and ARF6. Modulates PXN recruitment to focal contacts and cell migration. 2 isoforms of the human protein are produced by alternative splicing.
Protein type: GAPs, ARF; GAPs; Motility/polarity/chemotaxis
Chromosomal Location of Human Ortholog: 2p25|2p24
Cellular Component: plasma membrane
Molecular Function: protein binding; zinc ion binding; enzyme activator activity
Biological Process: positive regulation of catalytic activity; positive regulation of GTPase activity