2DTR	Repressor	date	Jul 26, 1996
title	Structure Of Diphtheria Toxin Repressor
authors	X.Qiu, E.Pohl, W.G.Hol
compound		source
Molecule: Diphtheria Toxin Repressor Chain: A Synonym: Dtxr Engineered: Yes		Organism_scientific: Corynebacterium Diphtheriae Organism_taxid: 1717 Strain: C7(-) Gene: T Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_plasmid: Pms298 Expression_system_gene: T
symmetry	Space Group: P 31 2 1	R_factor 0.171 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 63.900 63.900 109.300 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.90 Å
ligand	CO, SO4	enzyme
note	2DTR supersedes 1DTR
related structures	by homologous chain: 1FX7, 1P92
Gene Ontology	Chain Function Process Component A
Primary reference	High-resolution structure of the diphtheria toxin repressor complexed with cobalt and manganese reveals an SH3-like third domain and suggests a possible role of phosphate as co-corepressor., Qiu X, Pohl E, Holmes RK, Hol WG, Biochemistry 1996 Sep 24;35(38):12292-302. PMID:8823163

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (31 Kb) [Save to disk] Biological Unit Coordinates (2dtr.pdb1.gz) 52 Kb LPC: Ligand-Protein Contacts for 2DTR CSU: Contacts of Structural Units for 2DTR Likely Quarternary Molecular Structure file(s) for 2DTR Retrieve 2DTR in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2DTR from S2C, [Save to disk]

View 2DTR 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 2DTR

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2DTR, from MSDmotif at EBI Genome occurence of 2DTR's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d2dtr_3, region 148-226 [Jmol] [rasmolscript] [script source]     - Domain d2dtr_1, region 4-64 [Jmol] [rasmolscript] [script source]     - Domain d2dtr_2, region 65-140 [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: [2dtr_A] [2dtr] SWISS-PROT database: [P33120] Domain organization of [DTXR_CORDI] by SWISSPFAM Domains found in 2DTR: [FeoA] [HTH_DTXR ] by SMART

Other resources with information on 2DTR

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

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