1LQC Transcription Regulation date Aug 13, 1996
title Lac Repressor Headpiece (Residues 1-56), Nmr, 32 Structures
authors M.Slijper, A.M.J.J.Bonvin, R.Boelens, R.Kaptein
compound source
Molecule: Lac Repressor
Chain: A
Fragment: Headpiece, Residues 1 - 56
Synonym: Lac Hp56
Engineered: Yes
Other_details: The Protein Contains The First 56 N-Terminal (I.E., The Dna Binding Region) Of The Complete Lac Represso
Organism_scientific: Escherichia Coli
Organism_taxid: 562
Variant: Dh9
Gene: Lac I The Part Encoding Only
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_vector_type: Lac
Expression_system_plasmid: Pet-Hp56
Expression_system_gene: Lac I, The Part Encoding Only The F Amino Acids;
Other_details: T7 Rna Polymerase Promoter System
methodSolution NMR
related structures by homologous chain: 1CJG, 1LCD
Gene
Ontology
ChainFunctionProcessComponent
A


Primary referenceRefined structure of lac repressor headpiece (1-56) determined by relaxation matrix calculations from 2D and 3D NOE data: change of tertiary structure upon binding to the lac operator., Slijper M, Bonvin AM, Boelens R, Kaptein R, J Mol Biol 1996 Jun 21;259(4):761-73. PMID:8683581
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (204 Kb) [Save to disk]
  • Biological Unit Coordinates (1lqc.pdb1.gz) 7 Kb
  • CSU: Contacts of Structural Units for 1LQC
  • Experimental data, such as chemical shifts, at BioMagResBank (BMRB)
  • NMR Restraints Grid from BioMagResBank (BMRB)
  • Retrieve 1LQC in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1LQC from S2C, [Save to disk]
  • View 1LQC 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 1LQC
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1LQC, from MSDmotif at EBI
  • Genome occurence of 1LQC's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1lqc__, region [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: [1lqc_A] [1lqc]
  • SWISS-PROT database: [P03023]
  • Domain organization of [LACI_ECOLI] by SWISSPFAM
  • Domain found in 1LQC: [HTH_LACI ] by SMART
  • Other resources with information on 1LQC
  • Community annotation for 1LQC at PDBWiki (http://pdbwiki.org)
  • NMR Ensemble (OLDERADO: core, domain and representative structure database)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Domain movements in 1LQC from the Database of Macromolecular Movements.
  • Images from IMB Jena Image Library of Biological Macromolecules.

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