Anti-MAdCAM1 Antibody

MADCAM1 (Mucosal Vascular Addressin Cell Adhesion Molecule 1), also known as MACAM1, is a protein that in humans is encoded by the MADCAM1 gene. By PCR-based analysis of somatic cell hybrids, this gene is mapped to chromosome 19. The protein encoded by this gene is an endothelil cell adhesion molecule that interacts preferentially with the leukocyte beta7 integrin LPAM-1 (alpha4 / beta7), L-selectin, and VLA-4 (alpha4 / beta1) on myeloid cells to leukocytes into mucosal and inflamed tissues. It is a member of the immunoglobulin superfamily and is similar to ICAM-1 and VCAM-1.

A synthetic peptide corresponding to a sequence in the middle region of human MAdCAM1, which shares 56.5% amino acid (aa) sequence identity with mouse MAdCAM1.

Highly expressed on high endothelial venules (HEV) and lamina propia venules found in the small intestine, and to a lesser extent in the colon and spleen. Very low levels of expression found in pancreas and brain. Not expressed in the thymus, prostate, ovaries, testis, heart, placenta, lung, liver, skeletal muscle, kidney or peripheral blood leukocytes.

Angiogenesis, Cardiovascular, Cell Adhesion, Cell Adhesion Proteins, Cytoskeleton/ECM, Immunology, Innate Immunity, Integrins, Macrophage/Inflammation, Neuroscience, Receptors, Signal Transduction

Cell adhesion leukocyte receptor expressed by mucosal venules, helps to lymphocyte traffic into mucosal tissues including the Peyer patches and the intestinal lamina propria. It can bind both integrin alpha-4/beta-7 and L-selectin, regulating both the passage and retention of leukocytes. Isoform 2, lacking the mucin-like domain, may be specialized in supporting integrin alpha-4/beta-7-dependent adhesion strengthening, independent of L- selectin binding.

1. Briskin, M. J., McEvoy, L. M., Butcher, E. C. MAdCAM-1 has homology to immunoglobulin and mucin-like adhesion receptors and to IgA1. Nature 363: 461-464, 1993. 2. Entrez Gene: mucosal vascular addressin cell adhesion molecule 1. 3. Leung, E., Berg, R. W., Langley, R., Greene, J., Raymond, L. A., Augustus, M., Ni, J., Carter, K. C., Spurr, N., Choo, K. H. A., Krissansen, G. W. Genomic organization, chromosomal mapping, and analysis of the 5-prime promoter region of the human MAdCAM-1 gene. Immunogenetics 46: 111-119, 1997.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.