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CLONING AND CHARACTERIZATION OF A RECEPTOR-CLASS PHOSPHOTYROSINE PHOSPHATASE GENE EXPRESSED ON CENTRAL-NERVOUS-SYSTEM AXONS IN DROSOPHILA-MELANOGASTER
被引:49
作者:
HARIHARAN, IK
CHUANG, PT
RUBIN, GM
机构:
来源:
关键词:
TYROSINE PHOSPHORYLATION;
ONCOGENES;
EYE DEVELOPMENT;
D O I:
10.1073/pnas.88.24.11266
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
We have cloned and characterized cDNAs coding for a receptor-class phosphotyrosine phosphatase gene from Drosophila melanogaster. The gene maps to the polytene chromosome bands 99A7-8. The cDNA clones code for a polypeptide of 1301 amino acids with a predicted molecular mass of 145 kDa. The extracellular domain includes two fibronectin-type III-like domains. The cytoplasmic region contains two tandemly repeated phosphotyrosine phosphatase-like domains. Residues shown crucial for catalytic activity are absent in the second domain. This Drosophila receptor-class phosphotyrosine phosphatase polypeptide is expressed on axons of the embryonic central nervous system.
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页码:11266 / 11270
页数:5
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