1PK3 Transcription Repression date Jun 04, 2003
title Scm Sam Domain
authors C.A.Kim, M.R.Sawaya, D.Cascio, W.Kim, J.U.Bowie
compound source
Molecule: Sex Comb On Midleg Cg9495-Pa
Chain: A, B, C
Fragment: Sequence Database Residue 795-871, Sam Domain Of
Synonym: Scm
Engineered: Yes
Mutation: Yes
 Organism_scientific: Drosophila Melanogaster
Organism_common: Fruit Fly
Organism_taxid: 7227
Gene: Scm
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3) Plyss
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet-3c
symmetry Space Group: P 21 21 21
R_factor 0.215 R_Free 0.231
crystal
cell
length a length b length c angle alpha angle beta angle gamma
52.150 63.993 103.638 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.85 Å
ligand BME enzyme
note 1PK3 is a representative structure
related structures by homologous chain: 1PK1
Primary referenceStructural organization of a Sex-comb-on-midleg/polyhomeotic copolymer., Kim CA, Sawaya MR, Cascio D, Kim W, Bowie JU, J Biol Chem. 2005 Jul 29;280(30):27769-75. Epub 2005 May 19. PMID:15905166
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (43 Kb) [Save to disk]
  • Biological Unit Coordinates (1pk3.pdb1.gz) 14 Kb
  • Biological Unit Coordinates (1pk3.pdb2.gz) 12 Kb
  • Biological Unit Coordinates (1pk3.pdb3.gz) 14 Kb
  • LPC: Ligand-Protein Contacts for 1PK3
  • CSU: Contacts of Structural Units for 1PK3
  • Likely Quarternary Molecular Structure file(s) for 1PK3
  • Structure Factors (229 Kb)
  • Retrieve 1PK3 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1PK3 from S2C, [Save to disk]
  • Re-refined 1pk3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 1PK3 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 1PK3
  • 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 1PK3, from MSDmotif at EBI
    • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1pk3] [1pk3_C] [1pk3_A] [1pk3_B]
  • SWISS-PROT database: [Q9VHA0]
  • Domain organization of [SCM_DROME] by SWISSPFAM
  • Domain found in 1PK3: [SAM ] by SMART
    • Other resources with information on 1PK3
  • Community annotation for 1PK3 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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