Scientific background: |
PECAM-1(Platelet endothelial cell adhesion molecule), also known as cluster of differentiation 31 (CD31) is a protein that in human is encoded by the PECAM1 gene found on chromosome 17. PECAM1 is a member of the immunoglobulin (Ig) superfamily that is expressed on the surface of circulating platelets, monocytes, neutrophils, and particular T-cell subsets. Using a PCR-based analysis of somatic cell hybrids, Gumina et al. (1996) mapped PECAM1 to chromosome 17 in the region 17q23-qter. Several adhesion molecules expressed on platelets and endothelium also localized to 17q. Xie and Muller (1996) mapped the Pecam1 gene to mouse chromosome 6, region F3-G1, by fluorescence in situ hybridization. PECAM-1 is found on the surface of platelets, monocytes, neutrophils, and some types of T-cells, and makes up a large portion of endothelial cell intercellular junctions, and PECAM-1 plays a key role in removing aged neutrophils from the body. |
References: |
1. Gumina, R. J., Kirschbaum, N. E., Rao, P. N., vanTuinen, P., Newman, P. J.The human PECAM1 gene maps to 17q23.Genomics 34: 229-232, 1996.
2. Newman, P. J., Berndt, M. C., Gorski, J., White, G. C., II, Lyman, S., Paddock, C., Muller, W. A.PECAM-1 (CD31) cloning and relation to adhesion molecules of the immunoglobulin gene superfamily.Science 247: 1219-1222, 1990.
3. Xie, Y., Muller, W. A.Fluorescence in situ hybridization mapping of the mouse platelet endothelial cell adhesion molecule-1 (PECAM1) to mouse chromosome 6, region F3-G1.Genomics 37: 226-228, 1996.
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