2CKO	Transferase	date	Apr 20, 2006
title	Crystal Structure Of Human Choline Kinase Alpha 2
authors	E.Malito, A.Lavie
compound		source
Molecule: Choline Kinase Alpha Chain: A, B Fragment: Splice Isoform 2, Residues 50-439 Synonym: Ck, Chetk-Alpha Ec: 2.7.1.32 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector: Pgex-Rb
symmetry	Space Group: P 21 21 21	R_factor 0.199 R_Free 0.256
crystal cell	length a length b length c angle alpha angle beta angle gamma 56.180 122.820 132.170 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.15 Å
ligand	DTT	enzyme	Transferase E.C.2.7.1.32 BRENDA
Primary reference	Elucidation of human choline kinase crystal structures in complex with the products ADP or phosphocholine., Malito E, Sekulic N, Too WC, Konrad M, Lavie A, J Mol Biol. 2006 Nov 24;364(2):136-51. Epub 2006 Sep 3. PMID:17007874

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (126 Kb) [Save to disk] Biological Unit Coordinates (2cko.pdb1.gz) 121 Kb LPC: Ligand-Protein Contacts for 2CKO CSU: Contacts of Structural Units for 2CKO Likely Quarternary Molecular Structure file(s) for 2CKO Structure Factors (679 Kb) Retrieve 2CKO in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2CKO from S2C, [Save to disk] Re-refined 2cko structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2CKO 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 2CKO

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 2CKO, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2cko] [2cko_B] [2cko_A] SWISS-PROT database: [P35790] Domain organization of [CHKA_HUMAN] by SWISSPFAM

Other resources with information on 2CKO

Community annotation for 2CKO at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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