An antiphosphotyrosine antibody was used to identify proteins that are phosphorylated in Rous sarcoma virus-transformed chick embryo fibroblasts, and a 76-kD protein was obtained that localizes to focal adhesions at the ends of actin-containing stress fibers in nontransformed cells (Ref.1). This protein was purified from chicken gizzard smooth muscle, and was named Pxn (Paxillin) ('paxillus' means 'small stake' or 'peg' in Latin) as a protein tethered to the membrane at focal adhesions
Davidson D, et al. (2001) EMBO J; 20(13): 3414-3426
Kook S, et al. (2000) Mol Biol Cell; 11(3): 929-939
Fleming I, et al. (1999) Proc Natl Acad Sci U S A; 96(3): 1123-1128
Goldberg MB, et al. (2001) Microbiol Mol Biol Rev; 65(4): 595-626
Thomas JT, et al. (1999) Proc Natl Acad Sci U S A; 96(15): 8449-8454