1TFO	Toxin Toxin Inhibitor	date	May 27, 2004
title	Ribonuclease From Escherichia Coli Complexed With Its Inhibitor Protein
authors	S.Yajima, K.Nakanishi, K.Takahashi, T.Ogawa, Y.Kezuka, M.Hidaka, T.Nonaka, K.Ohsawa, H.Masaki
compound		source
Molecule: Colicin D Chain: A Fragment: C-Terminal Domain Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Cda Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid
Molecule: Colicin D Immunity Protein Chain: B Synonym: Immd; Microcin D Immunity Protein Engineered: Yes Other_details: Inhibitor Protein		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Cdi Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid
symmetry	Space Group: P 41 21 2	R_factor 0.258 R_Free 0.309
crystal cell	length a length b length c angle alpha angle beta angle gamma 56.171 56.171 149.307 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.30 Å
related structures	by homologous chain: 1TFK
Gene Ontology	Chain Function Process Component A B
Primary reference	Relation between tRNase activity and the structure of colicin D according to X-ray crystallography., Yajima S, Nakanishi K, Takahashi K, Ogawa T, Hidaka M, Kezuka Y, Nonaka T, Ohsawa K, Masaki H, Biochem Biophys Res Commun 2004 Sep 24;322(3):966-73. PMID:15336558

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (35 Kb) [Save to disk] Biological Unit Coordinates (1tfo.pdb1.gz) 32 Kb CSU: Contacts of Structural Units for 1TFO Likely Quarternary Molecular Structure file(s) for 1TFO Structure Factors (79 Kb) Retrieve 1TFO in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1TFO from S2C, [Save to disk] Re-refined 1tfo structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1TFO 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 1TFO

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 1TFO, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1tfo_A] [1tfo_B] [1tfo] SWISS-PROT database: [P17998] [P11899] Domain organization of [CEAD_ECOLX] [IMMD_ECOLX] by SWISSPFAM

Other resources with information on 1TFO

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

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