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Anti-Integrin alpha 4/ITGA4 Antibody Picoband® Fluoro488 Conjugated

Product Specifications

Background

ITGA4/Integrin alpha4 is an integrin alpha subunit. It makes up half of the α4β1 lymphocyte homing receptor. The product of this gene belongs to the integrin alpha chain family of proteins. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain. This gene encodes an alpha 4 chain. Unlike other integrin alpha chains, alpha 4 neither contains an I-domain, nor undergoes disulfide-linked cleavage. Alpha 4 chain associates with either beta 1 chain or beta 7 chain. ITGA4 is also mapped to 2q31-q32 by fluorescence in situ hybridization.

Synonyms

Integrin alpha-4; CD49 antigen-like family member D; Integrin alpha-IV; VLA-4 subunit alpha; CD49d; ITGA4; CD49D

Gene Name

ITGA4

Gene ID

3676

UniProt

P13612

Host

Rabbit

Reactivity

Human, Rat

Cross Reactivity

No cross-reactivity with other proteins

Immunogen

A synthetic peptide corresponding to a sequence at the C-terminus of human Integrin alpha 4, different from the related mouse sequence by one amino acid.

Clonality

Polyclonal

Tissue Specificity

Isoform 1 and isoform 2 were identified in platelets and megakaryocytes, but not in reticulocytes or in Jurkat and U-937 white blood cell line. Isoform 3 is expressed by leukemia, prostate adenocarcinoma and melanoma cells but not by platelets or normal prostate or breast epithelial cells.

Applications

Flow Cytometry

Field of Research

Cell Adhesion, Cell Type Markers, Cytoskeleton/ECM, Immunology, Integrins, Neural Stem Cells, Signal Transduction, Stem Cells, Surface Molecules

Purification

Immunogen affinity purified.

Form

Liquid

Function

Integrins 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. .

References & Citations

1. Jaspers, M., Zhang, Z., Marynen, P., Vekemans, S., Aly, M. S., Cuppens, H., Hillicker, C., Cassiman, J.-J.Localization of the genes encoding the alpha-2 and alpha-4 subunits of the human VLA-receptors to chromosome 5q23-31 and 2q31-32 respectively. (Abstract) Cytogenet. Cell Genet. 58: 1870 only, 1991. 2. Miller, D. H., Khan, O. A., Sheremata, W. A., Blumhardt, L. D., Rice, G. P. A., Libonati, M. A., Willmer-Hulme, A. J., Dalton, C. M., Miszkiel, K. A., O'Connor, P. W.A controlled trial of natalizumab for relapsing multiple sclerosis.New Eng. J. Med. 348: 15-23, 2003.

Storage Conditions

At -20 ̊C for one year from date of receipt. Avoid repeated freezing and thawing. Protect from light.

Calculated Molecular Weight

114900 MW

Specificity

No cross reactivity with other proteins.

Applications Notes

6

Gene Name Synonym

Integrin alpha-4

Subcellular Location

Membrane; Single-pass type I membrane protein.

Sequence Similarities

Contains 1 HMG box DNA-binding domain.

Protein Name

Integrin alpha-4

Isotype

Rabbit IgG

Contents

Each vial contains 50% glycerol, 0.9% NaCl, 0.2% Na2HPO4, 0.02% NaN3.

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