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Author Textor, Larissa C. ♦ Wilmanns, Matthias ♦ Holton, Simon J.
Source World Health Organization (WHO)-Global Index Medicus
Content type Text
Publisher Wiley
File Format HTM / HTML
Language English
Difficulty Level Medium
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences ♦ Crystallography ♦ Life sciences; biology ♦ Physiology & related subjects ♦ Biochemistry ♦ Genetics and evolution ♦ Natural history of organisms ♦ Technology ♦ Medicine & health ♦ Human physiology ♦ Pharmacology and therapeutics ♦ Diseases ♦ Manufacture for specific uses ♦ Precision instruments & other devices
Subject Domain (in MeSH) Eukaryota ♦ Organisms ♦ Amino Acids, Peptides, and Proteins ♦ Nucleic Acids, Nucleotides, and Nucleosides ♦ Chemicals and Drugs ♦ Investigative Techniques ♦ Analytical, Diagnostic and Therapeutic Techniques and Equipment ♦ Genetic Phenomena ♦ Biological Sciences
Subject Keyword Discipline Crystallography ♦ Discipline Biophysics ♦ Discipline Molecular Biology ♦ Discipline Biochemistry ♦ Dna ♦ Metabolism ♦ Mafb Transcription Factor ♦ Genetics ♦ Isolation & Purification ♦ Animals ♦ Crystallization ♦ Crystallography, X-ray ♦ Gene Expression Regulation ♦ Physiology ♦ Biosynthesis ♦ Mice ♦ Recombinant Proteins ♦ Journal Article ♦ Research Support, Non-u.s. Gov't
Abstract The MafB transcription factor (residues 211-305) has been overexpressed in and purified from Escherichia coli. A protein-DNA complex between the MafB homodimer and the 21 bp Maf-recognition sequence known as Cmare has been successfully reconstituted in vitro and subsequently crystallized. The diffraction properties of the protein-DNA complex crystals were improved using a combination of protein-construct boundary optimization and targeted mutagenesis to promote crystal lattice stability. Both native and mercury-derivatized crystals have been prepared using these optimized conditions. The crystals belong to space group P4(1)2(1)2 or P4(3)2(1)2, with unit-cell parameters a = b = 94.8, c = 197.9 A. An anomalous difference Patterson map computed using data collected from crystals grown in the presence of HgCl(2) reveals four peaks. This corresponds to two copies of the protein-DNA complex in the asymmetric unit, with a solvent content of 62% and a Matthews coefficient of 3.22 A(3) Da(-1).
Description Country affiliation: Germany
Author Affiliation: Textor LC ( EMBL DESY, Notkestrasse 85, D-22603 Hamburg, Germany.)
ISSN 2053230X
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Reading ♦ Research ♦ Self Learning
Interactivity Type Expositive
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2007-08-01
Publisher Place Great Britain (UK)
e-ISSN 17443091
Journal Acta Crystallographica Section F Structural Biology and Crystallization Communications
Volume Number 63
Issue Number Pt 8


Source: WHO-Global Index Medicus