• Product nameAnti-Integrin alpha 4 antibody [HP2/1]
    See all Integrin alpha 4 primary antibodies
  • Description
    Mouse monoclonal [HP2/1] to Integrin alpha 4
  • SpecificityThis antibody recognises the 80kD alpha chain of VLA-4. Reacts with monocytes, T cells, B cells, thymocytes and Langerhans cells.
  • Tested applicationsSuitable for: Flow Cyt, IHC-Fr, IP, ICC/IFmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    JM leukaemia line (Human).

  • Positive control
    • ICC/IF: HAP-1 wild-type and ITGA4 knockout cells.
  • General notes

    Can be used in basic studies of VLA-4 mediated adhesion and its interaction with the VCAM-1 structure. HP2/1 inhibits cell binding to soluble VCAM-1.



Our Abpromise guarantee covers the use of ab22858 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
Flow Cyt Use 1µg for 105 cells.

ab170190 - Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.

IHC-Fr Use at an assay dependent concentration.
IP Use at an assay dependent concentration.
ICC/IF Use a concentration of 5 µg/ml.


  • FunctionIntegrins alpha-4/beta-1 (VLA-4) and alpha-4/beta-7 are receptors for fibronectin. They recognize one or more domains within the alternatively spliced CS-1 and CS-5 regions of fibronectin. They are also receptors for VCAM1. Integrin alpha-4/beta-1 recognizes the sequence Q-I-D-S in VCAM1. Integrin alpha-4/beta-7 is also a receptor for MADCAM1. It recognizes the sequence L-D-T in MADCAM1. On activated endothelial cells integrin VLA-4 triggers homotypic aggregation for most VLA-4-positive leukocyte cell lines. It may also participate in cytolytic T-cell interactions with target cells.
  • Sequence similaritiesBelongs to the integrin alpha chain family.
    Contains 7 FG-GAP repeats.
  • DomainThe SG1 motif is involved in binding to chondroitin sulfate glycosaminoglycan and cell adhesion.
  • Post-translational
    Phosphorylation on Ser-1027 inhibits PXN binding.
  • Cellular localizationMembrane.
  • Information by UniProt
  • Database links
  • Alternative names
    • 269C wild type antibody
    • Antigen CD49D, alpha 4 subunit of VLA 4 receptor antibody
    • CD49 antigen like family member D antibody
    • CD49 antigen-like family member D antibody
    • CD49d antibody
    • IA4 antibody
    • Integrin alpha 4 antibody
    • Integrin alpha 4 subunit antibody
    • Integrin alpha IV antibody
    • Integrin alpha-4 antibody
    • Integrin alpha-IV antibody
    • Integrin, alpha 4 (antigen CD49D, alpha 4 subunit of VLA 4 receptor) antibody
    • ITA4_HUMAN antibody
    • ITGA4 antibody
    • MGC90518 antibody
    • OTTHUMP00000205320 antibody
    • Very late activation protein 4 receptor, alpha 4 subunit antibody
    • VLA 4 subunit alpha antibody
    • VLA-4 subunit alpha antibody
    • VLA4 antibody
    see all

Anti-Integrin alpha 4 antibody [HP2/1] images

  • ab22858 staining Integrin alpha 4 in wild-type HAP1 cells (top panel) and Integrin alpha 4 knockout HAP1 cells (bottom panel). The cells were fixed with 4% formaldehyde (10min), permeabilized with 0.1% Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1% PBS-Tween for 1h. The cells were then incubated with ab22858 at 5μg/ml concentration and ab202272 at 1/250 dilution (shown in pseudo colour red) overnight at +4°C, followed by a further incubation at room temperature for 1h with a goat secondary antibody to Mouse IgG (Alexa Fluor® 488) (ab150117) at 2 μg/ml (shown in green). Nuclear DNA was labelled in blue with DAPI.

References for Anti-Integrin alpha 4 antibody [HP2/1] (ab22858)

This product has been referenced in:
  • Qi J  et al. Identification, characterization, and epitope mapping of human monoclonal antibody J19 that specifically recognizes activated integrin a4ß7. J Biol Chem 287:15749-59 (2012). Flow Cyt ; Human . Read more (PubMed: 22418441) »

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