Cloning and expression of a widely expressed receptor tyrosine phosphatase.
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Cloning and expression of a widely expressed receptor tyrosine phosphatase. / Sap, J; D'Eustachio, P; Givol, D; Schlessinger, J.
In: Proceedings of the National Academy of Science of the United States of America, Vol. 87, No. 16, 1990, p. 6112-6.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Cloning and expression of a widely expressed receptor tyrosine phosphatase.
AU - Sap, J
AU - D'Eustachio, P
AU - Givol, D
AU - Schlessinger, J
N1 - Keywords: Amino Acid Sequence; Animals; Base Sequence; Blotting, Northern; Brain; Chromosome Mapping; Cloning, Molecular; DNA; Gene Expression; Gene Library; Genes; Mice; Mice, Inbred BALB C; Mice, Inbred Strains; Molecular Sequence Data; Phosphoprotein Phosphatases; Protein Tyrosine Phosphatases; Receptors, Cell Surface; Restriction Mapping; Species Specificity
PY - 1990
Y1 - 1990
N2 - We describe the identification of a widely expressed receptor-type (transmembrane) protein tyrosine phosphatase (PTPase; EC 3.1.3.48). Screening of a mouse brain cDNA library under low-stringency conditions with a probe encompassing the intracellular (phosphatase) domain of the CD45 lymphocyte antigen yielded cDNA clones coding for a 794-amino acid transmembrane protein [hereafter referred to as receptor protein tyrosine phosphatase alpha (R-PTP-alpha)] with an intracellular domain displaying clear homology to the catalytic domains of CD45 and LAR (45% and 53%, respectively). The 142-amino acid extracellular domain (including signal peptide) of R-PTP-alpha is marked by a high serine/threonine content (32%) as well as eight potential N-glycosylation sites but displays no similarity to known proteins. Genetic mapping assigns the gene for R-PTP-alpha to mouse chromosome 2, closely linked to the Il-1a and Bmp-2a loci. The corresponding mRNA (3.0 kilobases) is expressed in most murine tissues and most abundantly expressed in brain and kidney. Antibodies against a synthetic peptide of R-PTP-alpha identified a 130-kDa protein in cells transfected with the R-PTP-alpha cDNA.
AB - We describe the identification of a widely expressed receptor-type (transmembrane) protein tyrosine phosphatase (PTPase; EC 3.1.3.48). Screening of a mouse brain cDNA library under low-stringency conditions with a probe encompassing the intracellular (phosphatase) domain of the CD45 lymphocyte antigen yielded cDNA clones coding for a 794-amino acid transmembrane protein [hereafter referred to as receptor protein tyrosine phosphatase alpha (R-PTP-alpha)] with an intracellular domain displaying clear homology to the catalytic domains of CD45 and LAR (45% and 53%, respectively). The 142-amino acid extracellular domain (including signal peptide) of R-PTP-alpha is marked by a high serine/threonine content (32%) as well as eight potential N-glycosylation sites but displays no similarity to known proteins. Genetic mapping assigns the gene for R-PTP-alpha to mouse chromosome 2, closely linked to the Il-1a and Bmp-2a loci. The corresponding mRNA (3.0 kilobases) is expressed in most murine tissues and most abundantly expressed in brain and kidney. Antibodies against a synthetic peptide of R-PTP-alpha identified a 130-kDa protein in cells transfected with the R-PTP-alpha cDNA.
M3 - Journal article
C2 - 2166945
VL - 87
SP - 6112
EP - 6116
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
SN - 0027-8424
IS - 16
ER -
ID: 5070134