2TCT Transcription Regulation date Mar 02, 1995
title The Complex Formed Between Tet Repressor And Tetracycline-Mg Mechanism Of Antibiotic Resistance
authors W.Hinrichs, C.Kisker, W.Saenger
compound source
Molecule: Tetracycline Repressor
Chain: A
Synonym: Tet Repressor, Class D
Engineered: Yes
Organism_scientific: Escherichia Coli
Organism_taxid: 562
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: K12 Delta H1 Delta Trp
Expression_system_plasmid: Pwh904 (K. Tovar, Ph.D. Thesis, Erlangen-Nuernberg, 1989);
Other_details: Remault E.,Stanssens P.,Fiers W. Plasmid Vec High-Efficiency Expression Controlled By The Pl Promoter Of Coliphage Lambda. Gene 15, 81-93 (1981).
symmetry Space Group: I 41 2 2
R_factor 0.180 R_Free NULL
length a length b length c angle alpha angle beta angle gamma
68.780 68.780 181.450 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.10 Å
ligand CTC, MG enzyme
note 2TCT supersedes 1TCT
related structures by homologous chain: 1BJZ

Primary referenceThe complex formed between Tet repressor and tetracycline-Mg2+ reveals mechanism of antibiotic resistance., Kisker C, Hinrichs W, Tovar K, Hillen W, Saenger W, J Mol Biol 1995 Mar 24;247(2):260-80. PMID:7707374
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (40 Kb) [Save to disk]
  • Biological Unit Coordinates (2tct.pdb1.gz) 70 Kb
  • LPC: Ligand-Protein Contacts for 2TCT
  • CSU: Contacts of Structural Units for 2TCT
  • Likely Quarternary Molecular Structure file(s) for 2TCT
  • Retrieve 2TCT in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2TCT from S2C, [Save to disk]
  • View 2TCT 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 2TCT
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 2TCT, from MSDmotif at EBI
  • Genome occurence of 2TCT's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d2tct_1, region 2-67 [Jmol] [rasmolscript] [script source]
        - Domain d2tct_2, region 68-208 [Jmol] [rasmolscript] [script source]
  • Fold representative 2tct from FSSP and Dali (Families of Structurally Similar Proteins)
  • 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: [2tct] [2tct_A]
  • SWISS-PROT database: [P0ACT4]
  • Domain organization of [TETR4_ECOLX] by SWISSPFAM
  • Other resources with information on 2TCT
  • Community annotation for 2TCT at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Domain movements in 2TCT from the Database of Macromolecular Movements.
  • Images from IMB Jena Image Library of Biological Macromolecules.

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