1Q4K Transferase date Aug 04, 2003
title The Polo-Box Domain Of Plk1 In Complex With A Phospho- Peptide
authors K.Cheng, E.D.Lowe, J.Sinclair, E.A.Nigg, L.N.Johnson
compound source
Molecule: Serinethreonine-Protein Kinase Plk
Chain: B, A, C
Fragment: Polo Box Domain Of Human Plk1
Synonym: Plk-1, Serine-Threonine Protein Kinase 13, Stpk13
Ec: 2.7.1.-
Engineered: Yes
Mutation: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Plk1
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: B834 (De3) Plyss
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pgex-6p1

Molecule: Phospho-Peptide Sequence Met.Gln.Ser.Pthr.Pro.Leu;
Chain: D, E, F
Fragment: Phospho-Peptide
Engineered: Yes
Mutation: Yes

Synthetic: Yes
Other_details: Chemical Synthesis
symmetry Space Group: P 1
R_factor 0.245 R_Free 0.312
length a length b length c angle alpha angle beta angle gamma
57.071 56.888 85.050 91.45 103.21 118.50
method X-Ray Diffractionresolution 2.30 Å
ligand TPO enzyme Transferase E.C.2.7.1 BRENDA
related structures by homologous chain: 1Q4O
Primary referenceThe crystal structure of the human polo-like kinase-1 polo box domain and its phospho-peptide complex., Cheng KY, Lowe ED, Sinclair J, Nigg EA, Johnson LN, EMBO J 2003 Nov 3;22(21):5757-68. PMID:14592974
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (121 Kb) [Save to disk]
  • Biological Unit Coordinates (1q4k.pdb1.gz) 41 Kb
  • Biological Unit Coordinates (1q4k.pdb2.gz) 40 Kb
  • Biological Unit Coordinates (1q4k.pdb3.gz) 39 Kb
  • LPC: Ligand-Protein Contacts for 1Q4K
  • CSU: Contacts of Structural Units for 1Q4K
  • Likely Quarternary Molecular Structure file(s) for 1Q4K
  • Structure Factors (507 Kb)
  • Retrieve 1Q4K in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1Q4K from S2C, [Save to disk]
  • Re-refined 1q4k structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1Q4K 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 1Q4K
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1Q4K, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1q4ka1, region A:372-500 [Jmol] [rasmolscript] [script source]
        - Domain d1q4ka2, region A:501-593 [Jmol] [rasmolscript] [script source]
        - Domain d1q4kb1, region B:371-500 [Jmol] [rasmolscript] [script source]
        - Domain d1q4kb2, region B:501-594 [Jmol] [rasmolscript] [script source]
        - Domain d1q4kc1, region C:372-494 [Jmol] [rasmolscript] [script source]
        - Domain d1q4kc2, region C:503-593 [Jmol] [rasmolscript] [script source]
  • Fold representative 1q4k from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1q4k_D] [1q4k] [1q4k_F] [1q4k_A] [1q4k_C] [1q4k_B] [1q4k_E]
  • SWISS-PROT database: [P53350]
  • Domain organization of [PLK1_HUMAN] by SWISSPFAM
  • Other resources with information on 1Q4K
  • Community annotation for 1Q4K 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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