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：1991
卷号：88
期号：14
页码：5944-5948
DOI：10.1073/pnas.88.14.5944
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：Binding of a partial proteolytic digest by V8 enzyme of the yeast site-specific recombinase Flp to its target site gives rise to DNA-protein complexes that are smaller than those produced by the full-sized protein. The smallest of these complexes (occupancy of one peptide monomer per site) contains either one of two polypeptides (32 and 28 kDa) of the V8 digestion mixture. The amino termini of both polypeptides map to Ser-129 of Flp, corresponding to V8 cleavage at Glu-128. The relative mobilities of the complexes formed by the V8 peptides indicate that they lack the sharp substrate bend that is characteristic of Flp-derived complexes. A hybrid protein consisting of the amino-terminal one-third of the R recombinase (from Zygosaccharomyces rouxii) and the carboxyl-terminal two-thirds of Flp recognizes the Flp target site.
