DEMONSTRATION OF SEGMENTAL MOBILITY IN THE FUNCTIONALLY ESSENTIAL CARBOXYL-TERMINAL PART OF RIBONUCLEOTIDE REDUCTASE PROTEIN R2 FROM ESCHERICHIA-COLI

被引：16

作者：

LYCKSELL, PO ^{[1
]}

SAHLIN, M ^{[1
]}

机构：

[1] STOCKHOLM UNIV,DEPT MOLEC BIOL,S-10691 STOCKHOLM,SWEDEN

来源：

FEBS LETTERS | 1995年 / 368卷 / 03期

关键词：

RIBONUCLEOTIDE REDUCTASE; ESCHERICHIA COLI; DEOXYRIBONUCLEOTIDE SYNTHESIS; H-1; NMR; PROTEIN-PROTEIN INTERACTION;

D O I：

10.1016/0014-5793(95)00706-F

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The C-terminus of protein R2 is important for the formation of the enzymatically active complex between proteins R1 and R2 of ribonucleotide reductase from Escherichia coli. Some residues in this part of R2 may also be involved in intramolecular electron transfer. We now demonstrate that 26 amino acid residues at C-terminus of protein R2 are mobile in the free protein, and can be studied by H-1 NMR. Spectral assignment of narrow resonances was made by comparison of TOCSY and NOESY spectra from wild-type R2 with corresponding spectra of a mutant protein R2, lacking 30 residues at the carboxyl terminus.

引用

页码：441 / 444

页数：4