Kinetic analysis of ATP-dependent inter-ring communication in GroEL.

doi:10.1016/j.jmb.2004.02.076

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Article

Kinetic analysis of ATP-dependent inter-ring communication in GroEL.

Journal of molecular biology - 14 May 2004

Amir Amnon, Horovitz Amnon

Abstract excerpt

Different concentrations of ATP were mixed rapidly with single-ring or double-ring forms of GroEL containing the Phe44-->Trp mutation and the time-resolved changes in fluorescence emission, upon excitation at 295 nm, were followed. Two kinetic phases that were previously found for double-ring GroEL are also observed in the case of the single-ring version: (i) a fast phase with a relatively large amplitude that is...

Topics

Adenosine Triphosphate
Allosteric Regulation
Amino Acid Substitution
Chaperonin 60
Kinetics
Mutation
Spectrometry, Fluorescence
Time Factors

Source

Open in PubMed

Identifiers

PMID: 15111061
DOI: 10.1016/j.jmb.2004.02.076

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