Subunit association and monomer structure of CINC/Gro revealed by 1H-NMR.

Subunit association and monomer structure of CINC/Gro revealed by 1H-NMR. Research Abstract Details 

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Subunit association and monomer structure of CINC/Gro revealed by 1H-NMR. Abstract Text:

H Hanzawa,H Haruyama,K Konishi,K Watanabe,S Tsurufuji,

Rat CINC/Gro is a 72 residue chemotactic factor of neutrophils, and a member of the CXC chemokine family, that includes IL-8 and MGSA/GRO. Although the three-dimensional structure of CINC/Gro had previously been determined to be that of a dimer with 200 mM NaCl, it was shown on both ultracentrifugation analysis and 1H-NMR spectral analysis that CINC/Gro exists mainly as a monomer at a physiological concentration, similar to other proteins belonging to this family. By reducing the NaCl concentration, the equilibrium could be shifted to the monomer, making it possible to observe the monomer and dimer resonances in 1H-NMR spectra. There were no significant chemical shift changes of alpha protons in the beta sheet between the monomer and dimer, suggesting that the beta sheet structure was retained in the monomer. Instead, the chemical shift changes of a protons were significant at I18 and K21, which are located in the long loop region interacting with the alpha helix, and V59 at the beginning of the a helix, indicating structural changes in the relative positions of the alpha helix and beta sheet.

Subunit association and monomer structure of CINC/Gro revealed by 1H-NMR. Publishing Authors By Initials

H Hanzawa,H Haruyama,K Konishi,K Watanabe,S Tsurufuji,

For similar investigative techniques: centrifugation: ultracentrifugation research abstracts see: investigative techniques: centrifugation: ultracentrifugation research

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Subunit association and monomer structure of CINC/Gro revealed by 1H-NMR. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of biochemistry

VOLUME: 121

Page Numbers: 835-41

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: May

YEAR: 1997

Subunit association and monomer structure of CINC/Gro revealed by 1H-NMR. Information

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LANGUAGE: eng

NlmUniqueID: 376600

Subunit association and monomer structure of CINC/Gro revealed by 1H-NMR. Keywords Mesh Terms:

KEYWORDS: Ultracentrifugation

MESH TERMS: methods

Chemical & Substance for Abstract: Subunit association and monomer structure of CINC/Gro revealed by 1H-NMR. Information

Substance Name: Sodium Chloride

Registry Number: 7647-14-5

Grant and Affiliation Information for Subunit association and monomer structure of CINC/Gro revealed by 1H-NMR.

AFFILIATION: Analytical and Metabolic Research Laboratories, Sankyo Co., Ltd., Shinagawa-ku, Tokyo.

Country: JAPAN

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MEDLINETA: J Biochem

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