RASGRP4

The protein encoded by this gene is a member of the Ras guanyl nucleotide-releasing protein (RasGRP) family of Ras guanine nucleotide exchange factors. It contains a Ras exchange motif, a diacylglycerol-binding domain, and two calcium-binding EF hands. This protein was shown to activate H-Ras in a cation-dependent manner in vitro. Expression of this protein in myeloid cell lines was found to be correlated with elevated level of activated RAS protein, and the RAS activation can be greatly enhanced by phorbol ester treatment, which suggested a role of this protein in diacylglycerol regulated cell signaling pathways. Studies of a mast cell leukemia cell line expressing substantial amounts of abnormal transcripts of this gene indicated that this gene may play an important role in the final stages of mast cell development. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2009]

Description

RAS guanyl releasing protein 4

Tissue specificity

Group enriched (bone marrow, lymphoid tissue)

Subcell location

Nucleoplasm, Plasma membrane, Cytosol

Predicted location

Intracellular

Protein family

Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Predicted intracellular proteins
Protein evidence (Ezkurdia et al 2014)
Protein evidence (Kim et al 2014)
RAS pathway related proteins

Chromosome

19 (38409051 - 38426305)

Ensembl ID

ENSG00000171777  (ver. 103.38)

Orthologs

Mouse Rasgrp4: ENSMUSG00000030589

UniProt

Q8TDF6

neXtProt

NX_Q8TDF6

Human splice variants
Mouse splice variants

Protein structure