Molecular cloning and adhesive properties of murine platelet/endothelial cell adhesion molecule 1.
We describe the isolation and characterization of a functional murine platelet/endothelial cell adhesion molecule (PECAM) 1 cDNA clone from a mouse lung library. At the nucleotide level, the coding sequence of murine PECAM-1 is 73% identical to human PECAM-1, and at the amino acid level, the sequence is 79% homologous to its human counterpart. Southern hybridization reveals that one copy of the gene exists in the mouse genome; Northern hybridization reveals a single mRNA species in mouse lung tissue. COS-7 and mouse L cells transfected with murine PECAM-1 expressed a 130-kDa glycoprotein on their surfaces that reacted with anti-murine PECAM-1 monoclonal antibody and comigrated on SDS/PAGE with human PECAM-1. Stable L-cell transfectants aggregate with each other in a PECAM-dependent, homophilic manner.
Laboratory of Cellular Physiology and Immunology, Rockefeller University, New York, NY 10021.
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D000595:Amino Acid Sequence; D000818:Animals; D015703:Antigens, CD / Q000235:genetics; D015214:Antigens, Differentiation, Myelomonocytic / Q000096:biosynthesis* / Q000235:genetics; D001483:Base Sequence; D001792:Blood Platelets / Q000502:physiology*; D015139:Blotting, Southern; D002448:Cell Adhesion; D015815:Cell Adhesion Molecules / Q000096:biosynthesis*; D002449:Cell Aggregation; D002460:Cell Line; D003001:Cloning, Molecular; D015723:Gene Library; D006801:Humans; D007700:Kinetics; D007739:L Cells; D008099:Liver / Q000378:metabolism; D008168:Lung / Q000378:metabolism*; D051379:Mice; D008807:Mice, Inbred BALB C; D008969:Molecular Sequence Data; D019408:Platelet Endothelial Cell Adhesion Molecule-1; D012333:RNA, Messenger / Q000378:metabolism*; D017386:Sequence Homology, Amino Acid; D014162:Transfection
D015703:Antigens, CD; D015214:Antigens, Differentiation, Myelomonocytic; D015815:Cell Adhesion Molecules; D019408:Platelet Endothelial Cell Adhesion Molecule-1; D012333:RNA, Messenger