A study of the acid molten globule state of the histidine-containing proteins (HPr) from Escherichia coli and Bacillus subtilis /

anion and its electron distribution, iv) the environment of

Bibliographic Details
Main Author: Sroka, Susanna, 1957-
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1997.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:anion and its electron distribution, iv) the environment of
at 25 'C by far-UV circular dichroism (CD) and fluorescence
Bacillus subtilis and two mutants from the ecHPr protein,
by which anions produce the IA state involves: i) charge
concentrations of the transition indicate that the mechanism
cosolvent (fluorescent probes).
histidine-containing proteins (HPr) from Escherichia coli,
indicated by the far-UV CD and intrinsic fluorescence
K45E and F22W by Na2SO4 and NaCl indicate these proteins
monitored at 25 'C by intrinsic fluorescence of the
more effective than the chloride anion in producing the IA
naphthylamine) binding. The ecHPr F22W mutant was further
of ANS (1-anilino-8-naphthalene sulfonate) and NPN (N-phenyl-
refold to a compact intermediate (IA) with characteristics of
screening, ii) water structuring, iii) the ionic size of the
state. However, the refolding is not a two-state process as
the molten globule. The salt-induced refolding was monitored
the protein surface, and v) other conditions such as, another
The salt-induced transition of the low pH forms of the
transition curves of ecHPr F22W. The midpoint salt
tryptophan fluorophore. In all cases, the sulfate anion was
Item Description:"Major subject: Biochemistry".
Vita.
Physical Description:xiv, 82 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references: pages 77-81.