2HDI	Protein Transport,Antimicrobial Protein	date	Jun 20, 2006
title	Crystal Structure Of The Colicin I Receptor Cir From E.Coli With Receptor Binding Domain Of Colicin Ia.
authors	S.K.Buchanan, L.Esser, P.Lukacik
compound		source
Molecule: Colicin I Receptor Chain: A Fragment: Colicin I Receptor Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Cira Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet20b
Molecule: Colicin-Ia Chain: B Fragment: R Domain Of Colicin Ia Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Cia Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet17b
symmetry	Space Group: C 1 2 1	R_factor 0.188 R_Free 0.249
crystal cell	length a length b length c angle alpha angle beta angle gamma 132.633 130.494 56.261 90.00 101.22 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	LDA	enzyme
Gene Ontology	Chain Function Process Component A colicin transmembrane transp... B
Primary reference	Structure of colicin I receptor bound to the R-domain of colicin Ia: implications for protein import., Buchanan SK, Lukacik P, Grizot S, Ghirlando R, Ali MM, Barnard TJ, Jakes KS, Kienker PK, Esser L, EMBO J. 2007 Apr 26;. PMID:17464289

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (123 Kb) [Save to disk] Biological Unit Coordinates (2hdi.pdb1.gz) 117 Kb LPC: Ligand-Protein Contacts for 2HDI CSU: Contacts of Structural Units for 2HDI Likely Quarternary Molecular Structure file(s) for 2HDI Structure Factors (590 Kb) Retrieve 2HDI in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2HDI from S2C, [Save to disk] Re-refined 2hdi structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2HDI in 3D

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Visual 3D analysis of 2HDI

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 2HDI, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2hdi_B] [2hdi_A] [2hdi] SWISS-PROT database: [P06716] [P17315] Belongs to the outer membrane receptor (omr) family according to TCDB. Belongs to the channel-forming colicin (colicin) family according to TCDB. Domain organization of [CEIA_ECOLX] [CIRA_ECOLI] by SWISSPFAM

Other resources with information on 2HDI

Community annotation for 2HDI at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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