2PUC Transcription Dna date Oct 04, 1997
title Crystal Structure Of The Laci Family Member, Purr, Bound To Groove Binding By Alpha Helices
authors M.A.Schumacher, K.Y.Choi, H.Zalkin, R.G.Brennan
compound source
Molecule: Dna (5'- D(Tpapcpgpcpapapapcpgptptptpgpcpgpt )-3');
Chain: B
Engineered: Yes
Synthetic: Yes

Molecule: Protein (Purine Repressor)
Chain: A
Engineered: Yes
Mutation: Yes

Organism_scientific: Escherichia Coli
Organism_taxid: 562
Gene: Purr
Expression_system: Escherichia Coli Bl21
Expression_system_taxid: 511693
Expression_system_strain: Bl21
Expression_system_vector: Pet24a
Expression_system_plasmid: Pdna100
symmetry Space Group: C 2 2 21
length a length b length c angle alpha angle beta angle gamma
175.930 95.060 81.530 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.60 Å
ligand GUN enzyme
related structures by homologous chain: 1QQB, 2PUD

Primary referenceCrystal structure of LacI member, PurR, bound to DNA: minor groove binding by alpha helices., Schumacher MA, Choi KY, Zalkin H, Brennan RG, Science 1994 Nov 4;266(5186):763-70. PMID:7973627
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (67 Kb) [Save to disk]
  • Biological Unit Coordinates (2puc.pdb1.gz) 121 Kb
  • LPC: Ligand-Protein Contacts for 2PUC
  • CSU: Contacts of Structural Units for 2PUC
  • Likely Quarternary Molecular Structure file(s) for 2PUC
  • Retrieve 2PUC in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2PUC from S2C, [Save to disk]
  • View 2PUC 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 2PUC
  • 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 2PUC, from MSDmotif at EBI
  • Genome occurence of 2PUC's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d2puca1, region A:3-58 [Jmol] [rasmolscript] [script source]
        - Domain d2puca2, region A:59-340 [Jmol] [rasmolscript] [script source]
  • Fold representative 2puc 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: [2puc_B] [2puc_A] [2puc]
  • SWISS-PROT database: [P0ACP7]
  • Domain organization of [PURR_ECOLI] by SWISSPFAM
  • Domain found in 2PUC: [HTH_LACI ] by SMART
  • Other resources with information on 2PUC
  • Community annotation for 2PUC at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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