期刊名称:Proceedings of the National Academy of Sciences
印刷版ISSN:0027-8424
电子版ISSN:1091-6490
出版年度:1980
卷号:77
期号:8
页码:4504-4508
DOI:10.1073/pnas.77.8.4504
语种:English
出版社:The National Academy of Sciences of the United States of America
摘要:Antibodies to repressible nonspecific acid phosphatase [APase; orthophosphoric-monoester phosphohydrolase (acid optimum), EC 3.1.3.2 ] purified from Saccharomyces cerevisiae were used to detect the in vitro products of APase mRNA. Immunoprecipitation of cell-free synthesized protein and of in vivo enzyme from cell extracts has shown that derepression of enzyme synthesis in situ is the result of de novo appearance of functional mRNA followed by de novo protein synthesis. At least three unique APase polypeptides are synthesized in vitro from separate mRNAs and appear to be glycosylated in vivo to form secreted enzyme.