NDLI: Structure of the apo form of the catabolite control protein A (CcpA) from Bacillus megaterium with a DNA-binding domain.

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Structure of the apo form of the catabolite control protein A (CcpA) from Bacillus megaterium with a DNA-binding domain.

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Structure of the apo form of the catabolite control protein A (CcpA) from Bacillus megaterium with a DNA-binding domain.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Singh, Rajesh Kumar Palm, Gottfried J. Panjikar, Santosh Hinrichs, Winfried
Description	Country affiliation: Germany Author Affiliation: Singh RK ( Institut für Biochemie, Universität Greifswald, Felix-Hausdorff-Strasse 4, D-17489 Greifswald, Germany.)
Abstract	Crystal structure determination of catabolite control protein A (CcpA) at 2.6 A resolution reveals for the first time the structure of a full-length apo-form LacI-GalR family repressor protein. In the crystal structures of these transcription regulators, the three-helix bundle of the DNA-binding domain has only been observed in cognate DNA complexes; it has not been observed in other crystal structures owing to its mobility. In the crystal packing of apo-CcpA, the protein-protein contacts between the N-terminal three-helix bundle and the core domain consisted of interactions between the homodimers that were similar to those between the corepressor protein HPr and the CcpA N-subdomain in the ternary DNA complex. In contrast to the DNA complex, the apo-CcpA structure reveals large subdomain movements in the core, resulting in a complete loss of contacts between the N-subdomains of the homodimer.
File Format	HTM / HTML
ISSN	2053230X
e-ISSN	17443091
Journal	Acta Crystallographica Section F Structural Biology and Crystallization Communications
Issue Number	Pt 4
Volume Number	63
Language	English
Publisher	Wiley
Publisher Date	2007-04-01
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Discipline Crystallography Discipline Biophysics Discipline Molecular Biology Discipline Biochemistry Bacillus Megaterium Chemistry Bacterial Proteins Dna, Bacterial Metabolism Dna-binding Proteins Repressor Proteins Allosteric Regulation Amino Acid Sequence Crystallography, X-ray Models, Molecular Molecular Sequence Data Phosphorylation Protein Conformation
Content Type	Text
Resource Type	Article
Subject	Genetics Structural Biology Medicine Biochemistry Biophysics Condensed Matter Physics

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