Rasgrp1 est un gène codé par le symbole RASGRP1. Il est également connu sous le nom de: RAS guanyl-releasing protein 1; Calcium and DAG-regulated guanine nucleotide exchange factor II; CalDAG-GEFII; Ras guanyl-releasing protein; RASGRP. Rasgrp1 a une masse de 90.4kDa, une longueur d'acide aminé de 797, et est impliqué dans Systemic lupus erythematosus.
Nous proposons 1 des anticorps contre Rasgrp1, élevé dans Lapin, qui sont appropriés pour le WB et ICC/IF avec des échantillons dérivés de Humain, Souris et Rat.
Informations sur les Gènes et les Protéines
Résumé UniProt
Functions as a calcium- and diacylglycerol (DAG)-regulated nucleotide exchange factor specifically activating Ras through the exchange of bound GDP for GTP (PubMed:15899849, PubMed:23908768). Activates the Erk/MAP kinase cascade (PubMed:15899849). Regulates T-cell/B-cell development, homeostasis and differentiation by coupling T-lymphocyte/B-lymphocyte antigen receptors to Ras (PubMed:10807788, PubMed:12839994). Regulates NK cell cytotoxicity and ITAM-dependent cytokine production by activation of Ras-mediated ERK and JNK pathways (PubMed:19933860). Functions in mast cell degranulation and cytokine secretion, regulating FcERI-evoked allergic responses (By similarity). May also function in differentiation of other cell types (PubMed:12845332).
Résumé Entrez
This gene is a member of a family of genes characterized by the presence of a Ras superfamily guanine nucleotide exchange factor (GEF) domain. It functions as a diacylglycerol (DAG)-regulated nucleotide exchange factor specifically activating Ras through the exchange of bound GDP for GTP. It activates the Erk/MAP kinase cascade and regulates T-cells and B-cells development, homeostasis and differentiation. Alternatively spliced transcript variants encoding different isoforms have been identified. Altered expression of the different isoforms of this protein may be a cause of susceptibility to systemic lupus erythematosus (SLE).
Spécificité tissulaire
Expressed in brain with higher expression in cerebellum, cerebral cortex and amygdala. Expressed in the hematopoietic system. Expressed in T-cells (at protein level). Expressed in NK cells (at protein level) (PubMed:19933860).
Implication dans la maladie
Systemic lupus erythematosus: A chronic, relapsing, inflammatory, and often febrile multisystemic disorder of connective tissue, characterized principally by involvement of the skin, joints, kidneys and serosal membranes. It is of unknown etiology, but is thought to represent a failure of the regulatory mechanisms of the autoimmune system. The disease is marked by a wide range of system dysfunctions, an elevated erythrocyte sedimentation rate, and the formation of LE cells in the blood or bone marrow.
Similitudes de séquence
Belongs to the RASGRP family.
Localisation cellulaire
Cytoplasm > Cytosol. Cell membrane. Golgi apparatus membrane. Endoplasmic reticulum membrane.
Found both in the cytosol and associated with membranes. Relocalization to the cell membrane upon activation is F-actin-dependent. Translocates to the Golgi in response to phorbol ester or nerve growth factor. Localizes to somata and dendrites but not to axons of hippocampal pyramidal cells (By similarity).
