1Q4O	Transferase	date	Aug 04, 2003
title	The Structure Of The Polo Box Domain Of Human Plk1
authors	K.Y.Cheng, E.D.Lowe, J.Sinclair, E.A.Nigg, L.N.Johnson
compound		source
Molecule: Serinethreonine-Protein Kinase Plk Chain: A, B Fragment: Polo Box Domain Of Plk1 Synonym: Plk-1, Serine-Threonine Protein Kinase 13, Stpk13 Ec: 2.7.1.- Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Plk Or 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
symmetry	Space Group: P 1	R_factor 0.198 R_Free 0.288
crystal cell	length a length b length c angle alpha angle beta angle gamma 32.741 42.021 80.727 103.16 93.88 91.32
method	X-Ray Diffraction	resolution	2.20 Å
ligand		enzyme	Transferase E.C.2.7.1 BRENDA
related structures	by homologous chain: 1Q4K, 1UMW
Primary reference	The 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] (77 Kb) [Save to disk] Biological Unit Coordinates (1q4o.pdb1.gz) 37 Kb Biological Unit Coordinates (1q4o.pdb2.gz) 37 Kb CSU: Contacts of Structural Units for 1Q4O Likely Quarternary Molecular Structure file(s) for 1Q4O Structure Factors (298 Kb) Retrieve 1Q4O in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1Q4O from S2C, [Save to disk] Re-refined 1q4o structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1Q4O 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 1Q4O

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 1Q4O, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1q4oa1, region A:372-492 [Jmol] [rasmolscript] [script source]     - Domain d1q4oa2, region A:508-593 [Jmol] [rasmolscript] [script source]     - Domain d1q4ob1, region B:371-493 [Jmol] [rasmolscript] [script source]     - Domain d1q4ob2, region B:508-592 [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1q4o] [1q4o_B] [1q4o_A] SWISS-PROT database: [P53350] Domain organization of [PLK1_HUMAN] by SWISSPFAM

Other resources with information on 1Q4O

Community annotation for 1Q4O at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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