1IHF	Transcription Dna	date	Aug 21, 1996
title	Integration Host Factordna Complex
authors	P.A.Rice, S.W.Yang, K.Mizuuchi, H.A.Nash
compound		source
Molecule: Dna (35-Mer) Chain: C Engineered: Yes		Synthetic: Yes
Molecule: Dna (5'-D(Gpgpcpcpapapapapapapgpcpap 3'); Chain: D Engineered: Yes		Synthetic: Yes
Molecule: Dna (5'- D(Gpcptptpaptpcpapaptptptpgptptpgpc Papc Chain: E Synonym: Ihf Alpha Chain Engineered: Yes		Synthetic: Yes
Molecule: Protein (Integration Host Factor (Alpha) (Ihf)) Chain: A Synonym: Ihf Beta Chain		Organism_scientific: Escherichia Coli Organism_taxid: 562
Molecule: Protein (Integration Host Factor (Beta) (Ihf)) Chain: B		Organism_scientific: Escherichia Coli Organism_taxid: 562
symmetry	Space Group: P 21 21 21	R_factor 0.192 R_Free 0.255
crystal cell	length a length b length c angle alpha angle beta angle gamma 47.360 59.920 180.800 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	CD	enzyme
related structures	by homologous chain: 1OUZ
Gene Ontology	Chain Function Process Component A bacterial-type RNA polymeras... B
Primary 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

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (82 Kb) [Save to disk] Biological Unit Coordinates (1ihf.pdb1.gz) 76 Kb LPC: Ligand-Protein Contacts for 1IHF CSU: Contacts of Structural Units for 1IHF Likely Quarternary Molecular Structure file(s) for 1IHF Structure Factors (476 Kb) Retrieve 1IHF in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1IHF from S2C, [Save to disk] Re-refined 1ihf structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1IHF in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 1IHF

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1IHF, from MSDmotif at EBI Genome occurence of 1IHF's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ihfa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1ihfb_, region B [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1ihf_C] [1ihf_D] [1ihf_A] [1ihf_B] [1ihf_E] [1ihf] SWISS-PROT database: [P0A6X7] [P0A6Y1] Domain organization of [IHFA_ECOLI] [IHFB_ECOLI] by SWISSPFAM Domain found in 1IHF: [BHL ] by SMART

Other resources with information on 1IHF

Community annotation for 1IHF at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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