• Product name

  • Description

    Rabbit polyclonal to RASGRP 4
  • Host species

  • Tested applications

    Suitable for: IHC-P, ICC/IF, WBmore details
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Synthetic peptide corresponding to a region within amino acids 108 - 170 (KATGDTQELR RLQICHLVRY WLMRHPEVMH QDPQLEEVIG RFWATVAREG NSAQRRLGDS SDL) of Human RASGRP 4 (NP_733749).

  • Positive control

    • WB: A431, H1299, HeLa and Raji cell lysates IHC-P: SW480 (Human colon adenocarcinoma) tissue This antibody gave a positive result when used in the following formaldehyde fixed cell lines: PC3.


  • Form

  • Storage instructions

    Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
  • Storage buffer

    pH: 7.00
    Preservative: 0.01% Thimerosal (merthiolate)
    Constituents: PBS, 40% Glycerol
  • Concentration information loading...
  • Purity

    Immunogen affinity purified
  • Clonality

  • Isotype

  • Research areas


Our Abpromise guarantee covers the use of ab96293 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IHC-P 1/100.
ICC/IF Use a concentration of 5 µg/ml.
WB 1/500 - 1/3000. Predicted molecular weight: 75 kDa.


  • Function

    Functions as a cation- and diacylglycerol (DAG)-regulated nucleotide exchange factor activating Ras through the exchange of bound GDP for GTP. May function in mast cells differentiation.
  • Tissue specificity

    Expressed by mast cells and their progenitors (at protein level). Specifically expressed in mononuclear leukocytes. Highly expressed in myeloid cells compared to lymphoid cells. Also detected in heart, skeletal muscle, spleen, liver, placenta and lung. Not detected in brain. Isoform 1 is the major isoform in normal individuals. Isoform 2 is more significantly expressed in a patient with asthma. Isoform 3 is more significantly expressed in a patient with asthma and a mastocytosis patient.
  • Sequence similarities

    Belongs to the RASGRP family.
    Contains 1 EF-hand domain.
    Contains 1 N-terminal Ras-GEF domain.
    Contains 1 phorbol-ester/DAG-type zinc finger.
    Contains 1 Ras-GEF domain.
  • Developmental stage

    Expressed early during development. Detected in all fetal tissues tested.
  • Domain

    The phorbol-ester/DAG-type zinc finger mediates the binding and the functional activation by DAG.
  • Cellular localization

    Cytoplasm. Cell membrane. Recruited to membranes upon activation by DAG.
  • Information by UniProt
  • Database links

  • Alternative names

    • GRP4_HUMAN antibody
    • Guanyl nucleotide releasing protein 4 antibody
    • RAS guanyl releasing protein 4 antibody
    • RAS guanyl-releasing protein 4 antibody
    • RASGRP4 antibody
    see all


  • Anti-RASGRP 4 antibody (ab96293) at 1/1000 dilution + Raji whole cell lysates at 30 µg

    Predicted band size: 75 kDa

    7.5% SDS PAGE
  • ICC/IF image of ab96293 stained PC3 cells. The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody ab96293 at 5µg/ml overnight at +4°C. The secondary antibody (green) was DyLight® 488 goat anti- rabbit (ab96899) IgG (H+L) used at a 1/250 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

  • ab96293, at a 1/100 dilution, staining RASGRP 4 in paraffin embedded SW480 (Human colon adenocarcinoma) tissue by Immunohistochemical analysis.


This product has been referenced in:

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