1ihf

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{{STRUCTURE_1ihf| PDB=1ihf | SCENE= }}
{{STRUCTURE_1ihf| PDB=1ihf | SCENE= }}
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'''INTEGRATION HOST FACTOR/DNA COMPLEX'''
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===INTEGRATION HOST FACTOR/DNA COMPLEX===
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==Overview==
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Integration host factor (IHF) is a small heterodimeric protein that specifically binds to DNA and functions as an architectural factor in many cellular processes in prokaryotes. Here, we report the crystal structure of IHF complexed with 35 bp of DNA. The DNA is wrapped around the protein and bent by &gt;160 degrees, thus reversing the direction of the helix axis within a very short distance. Much of the bending occurs at two large kinks where the base stacking is interrupted by intercalation of a proline residue. IHF contacts the DNA exclusively via the phosphodiester backbone and the minor groove and relies heavily on indirect readout to recognize its binding sequence. One such readout involves a six-base A tract, providing evidence for the importance of a narrow minor groove.
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(as it appears on PubMed at http://www.pubmed.gov), where 8980235 is the PubMed ID number.
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{{ABSTRACT_PUBMED_8980235}}
==About this Structure==
==About this Structure==
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[[Category: Dna bending protein]]
[[Category: Dna bending protein]]
[[Category: Transcription factor]]
[[Category: Transcription factor]]
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Revision as of 09:11, 1 July 2008

Image:1ihf.png

Template:STRUCTURE 1ihf

INTEGRATION HOST FACTOR/DNA COMPLEX

Template:ABSTRACT PUBMED 8980235

About this Structure

1IHF is a Protein complex structure of sequences from Escherichia coli. Full crystallographic information is available from OCA.

Reference

Crystal structure of an IHF-DNA complex: a protein-induced DNA U-turn., Rice PA, Yang S, Mizuuchi K, Nash HA, Cell. 1996 Dec 27;87(7):1295-306. PMID:8980235

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