This gene encodes a human guanine nucleotide exchange factor. It transduces signals from CRK by binding the SH3 domain of CRK, and activating several members of the Ras family of GTPases. This signaling cascade that may be involved in apoptosis, integrin-mediated signal transduction, and cell transformation. Several alternatively spliced transcript variants of this gene have been described, but the full-length nature of some variants has not been determined. [provided by RefSeq, Jul 2008]
Function:
Guanine nucleotide-releasing protein that binds to SH3 domain of CRK and GRB2/ASH. Transduces signals from CRK to activate RAS.
Tissue Specificity:
Ubiquitously expressed in adult and fetus. Expression is high in adult skeletal muscle and placenta and in fetal brain and heart. Low levels of expression in adult and fetal liver.
Similarity:
Contains 1 N-terminal Ras-GEF domain.
Contains 1 Ras-GEF domain.
SWISS:
O14827
Gene ID:
2889
Database links:
Entrez Gene: 2889 Human
Entrez Gene: 107746 Mouse
Omim: 600303 Human
SwissProt: Q13905 Human
Unigene: 127897 Human
Unigene: 298274 Mouse
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Sample: Placenta (Mouse) Lysate at 40 ug
Primary: Anti-GRF2 (SL16311R) at 1/300 dilution
Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution
Predicted band size: 140 kD
Observed band size: 120 kD
Sample:
Lane 1: Human MCF-7 cell lysates
Lane 2: Human HL-60 cell lysates
Lane 3: Human JAR cell lysates
Lane 4: Human HeLa cell lysates
Primary: Anti-GRF2 (SL16311R) at 1/1000 dilution
Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution
Predicted band size: 140 kDa
Observed band size: 140 kDa
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