Integrin alpha 4 beta 7

Integrin alpha 4 beta 7

Integrin alpha 4 beta 7 詳細

Molecule Name
Integrin alpha-4/beta-7
分子の別称
Integrin alpha 4 beta 7,ITGA4&ITGB7
Drug Development Progress
治験薬の数14
市販薬剤の数4
研究&開発段階Approved
ターゲットの別称
LPAM-1,Lymphocyte Peyer's patch Adhesion Molecule 1
バックグランド
Integrin alpha 4 beta 7 is an integrin family adhesion receptor that shares subunits with alpha 4 beta 1 (VLA4) and the E-Cadherin receptor, alpha E beta 7 . Integrin alpha 4 beta 7, which is critical for homing to intestinal mucosa, is induced during T cell activation in Peyer’s patches or mesenteric lymph nodes.Its expression requires signals from local dendritic and stromal cells, including secreted retinoic acid. The HIV-1 envelope protein gp120 binds to the active form of Integrin alpha 4 beta 7, and this may or may not account for the concentration of HIV-1 virus in the gut-associated lymphoid tissue (GALT). Integrin alpha 4 beta 7 may also be involved in lymphocyte trafficking in acute intestinal graft vs. host disease (GVHD).

Integrin alpha 4 beta 7 製品リスト

Species
  • Human(3)
  • Cynomolgus(2)
Tag
  • His Tag(3)
  • His Tag & Avi Tag(2)
Host
  • HEK293(5)
Conjugate
  • Unconjugated(3)
  • Biotin-labeled(2)
Grade
  • RUO(5)
Low Endotoxin
  • Yes(2)
  • No(3)
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FAQ

How should human and cynomolgus α4β7 formats be matched for cross-species comparison?

Use the same heterodimer boundaries and comparable tag or biotinylation formats for both species. Human protein supports immunization and primary screening, while cynomolgus protein evaluates preclinical cross-reactivity.

How should recombinant α4β7 protein and an α4β7 stable cell line be sequenced in screening?

Use recombinant α4β7 for affinity ranking and biochemical inhibition, then confirm hits on the stable cell line. This step identifies candidates affected by membrane presentation, accessibility, or avidity.

When should I use the α4β7/MAdCAM-1 ELISA kit or the TR-FRET kit?

ELISA is useful for plate-based inhibition studies and straightforward endpoint detection. TR-FRET provides a homogeneous, no-wash format better suited to higher-throughput screening and automation.

How do integrin activation conditions affect α4β7–MAdCAM-1 binding results?

Divalent cations and chelators can shift α4β7 conformation and apparent affinity. Keep Ca²⁺, Mg²⁺, Mn²⁺, and EDTA conditions consistent when comparing candidates or transferring an assay.

How can α4β7-specific binders be distinguished from antibodies that also recognize α4β1 or α4β7?

Screen on assembled α4β7, then counter-screen against integrins sharing the α4 or β7 subunit. Confirm final hits on an α4β7 stable cell line to assess specificity in a membrane context.
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