Báo cáo Y học: A b-lysine adenylating enzyme and a b-lysine binding protein involved in poly b-lysine chain assembly in nourseothricin synthesis in Streptomyces noursei
24
lượt xem 4
download
lượt xem 4
download
Download
Vui lòng tải xuống để xem tài liệu đầy đủ
Nourseothricins (syn. Streptothricins), agroupof nucleoside peptides produced by several streptomycete strains, contain a polyb-lysine chain of variable length attached in amide linkage to the amino sugar moiety gulosamine of the nucleoside portion. We show that the nourseothricin-pro-ducingStreptomyces nourseicontains an enzyme (NpsA) of an apparentMr56 000 that speci®cally activatesb-lysine by adenylation but does not bind to it as a thioester.
Chủ đề:
Bình luận(0) Đăng nhập để gửi bình luận!
CÓ THỂ BẠN MUỐN DOWNLOAD