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proteins. Page last changed on 08 Dec 2016.
RAS guanyl releasing protein 2
CalDAG-GEFI, RASGRP2, CalDAG-GEFII
The protein encoded by this gene is a brain-enriched nucleotide exchanged factor that contains an N-terminal GEF domain, 2 tandem repeats of EF-hand calcium-binding motifs, and a C-terminal diacylglycerol/phorbol ester-binding domain. This protein can activate small GTPases, including RAS and RAP1/RAS3. The nucleotide exchange activity of this protein can be stimulated by calcium and diacylglycerol. Three alternatively spliced transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2008] (from
Bergmeier et al., Philadelphia, United States. In J Thromb Haemost, 2011
(i) STIM1/SOCE is critical for procoagulant activity but not the proadhesive function of platelets; and (ii) at the site of vascular injury, STIM1 and CalDAG-GEFI are critical for the first wave of thrombin generation mediated by procoagulant platelets
Bergmeier et al., Philadelphia, United States. In Blood, 2011
Studies indicate that CalDAG-GEFI mediates the rapid but reversible activation of integrin alphaIIbbeta3, and the adenosine diphosphate receptor P2Y12 facilitates delayed but sustained integrin activation.
Hori et al., Kure, Japan. In Biol Pharm Bull, 2009
analyzed the 5'-flanking region of rasgrp2 gene by a luciferase assay, which revealed that not only a promoter but also silencer regions were present upstream of D1E, suggesting rasgrp2 expression is controlled by a combination of promotion and repression