Anti-RASGRP2 antibody produced in rabbit

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Anti-RAS guanyl-releasing protein 2, Anti-HCDC25L, Anti-F25B33 kinase-like protein, Anti-CalDAG-GEFI, Anti-Cdc25-like protein, Anti-Calcium and DAG-regulated guanine nucleotide exchange factor I
Human Protein Atlas Number:
Pricing and availability is not currently available.

biological source


Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies



product line

Prestige Antibodies® Powered by Atlas Antibodies


buffered aqueous glycerol solution

species reactivity



antibody small pack of 25 μL


immunoblotting: 0.04-0.4 μg/mL
immunohistochemistry: 1:50-1:200

immunogen sequence




UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... RASGRP2(10235)


RAS guanyl-releasing protein 2 recombinant protein epitope signature tag (PrEST)


All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org)and as a result, are supported by the most extensive characterization in the industry.

The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.

Biochem/physiol Actions

RAS guanyl-releasing protein 2 (a calcium- and diacylglycerol-responsive guanine nucleotide exchange factor) is a protein encoded by the RASGRP2 gene in humans. It encodes for calcium- and DAG-regulated guanine exchange factor-1 (CalDAG-GEFI), which acts as a novel candidate for preventing thrombosis. CalDAG-GEFI is found to be expressed mainly in the striatum and olfactory structures and deep cortical layers and may serve as a key intracellular regulators. In endothelial cells, it increases the viability of cells and cell-matrix adhesion by increasing Ras expression and Rap1 activation.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.


Corresponding Antigen APREST72501.

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Certificate of Analysis
Certificate of Origin
Human CalDAG-GEFI gene (RASGRP2) mutation affects platelet function and causes severe bleeding.
Canault M, Ghalloussi D, Grosdidier C, et al.
The Journal of Experimental Medicine, 211(7), 1349-1362 (2014)
Junichi Takino et al.
Cell adhesion & migration, 7(3), 262-266 (2013-04-09)
Ras guanyl nucleotide releasing proteins (RasGRPs) are guanine nucleotide exchange factors that activate Ras and Rap. We recently reported that xrasgrp2, which is a homolog of the human rasgrp2, plays a role in vasculogenesis and/or angiogenesis during early development of...
S Toki et al.
The Journal of comparative neurology, 437(4), 398-407 (2001-08-15)
CalDAG-GEFI and CalDAG-GEFII (identical to RasGRP) are novel, brain-enriched guanine nucleotide exchange factors (GEFs) that can be stimulated by calcium and diacylglycerol and that can activate small GTPases, including Ras and Rap1, molecules increasingly recognized as having signaling functions in...
Kentaro Nagamine et al.
Biological & pharmaceutical bulletin, 33(7), 1138-1142 (2010-07-08)
Ras guanyl nucleotide-releasing protein 2 (RASGRP2) is a calcium- and diacylglycerol-responsive guanine nucleotide exchange factor. Previously, we reported that XRASGRP2, a homolog of human RASGRP2, is expressed in the vascular region of the Xenopus embryo during embryogenesis. Here, we report...
Sandra Andersson et al.
PloS one, 9(12), e115911-e115911 (2014-12-30)
The sequencing of the human genome has opened doors for global gene expression profiling, and the immense amount of data will lay an important ground for future studies of normal and diseased tissues. The Human Protein Atlas project aims to...

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