학술논문

Microscopic pK(sub a) values of Escherichia coli thioredoxin
Document Type
Academic Journal
Source
Biochemistry. Dec 2, 1997, Vol. 36 Issue 48, p14985, 7 p.
Subject
Escherichia coli -- Research
Enzymes -- Research
Biological sciences
Chemistry
Language
ISSN
0006-2960
Abstract
The microscopic pK(sub a) values of thioredoxin (Trx) in Escherichia coli labeling and site-directed mutagenesis. Results obtained revealed that the difficulty in determining pK(sub a) values in reduced Trx resulted from the location of three titrating groups in the active site. The electrostatic interactions of the enzyme and the alpha-helix dipole had an opposing effects on the titration of Cys32.