3LQ3	Transferase	date	Feb 08, 2010
title	Crystal Structure Of Human Choline Kinase Beta In Complex Wi Phosphorylated Hemicholinium-3 And Adenosine Nucleotide
authors	B.S.Hong, W.Tempel, W.M.Rabeh, F.Mackenzie, C.H.Arrowsmith, A.M.E C.Bountra, J.Weigelt, A.Bochkarev, H.W.Park, Structural Genomic Consortium (Sgc)
compound		source
Molecule: Cholineethanolamine Kinase Chain: A Synonym: Cholineethanolamine Kinase Beta, Ckekb, Choline K Beta, Ckb, Ck, Choline Kinase-Like Protein, Ethanolamine Ki Ethanolamine Kinase Beta, Ekb; Ec: 2.7.1.32, 2.7.1.82 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Chkb, Chetk, Chkl Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_plasmid: Pet28a-Lic
symmetry	Space Group: C 1 2 1	R_factor 0.187 R_Free 0.213
crystal cell	length a length b length c angle alpha angle beta angle gamma 98.175 73.206 62.426 90.00 117.97 90.00
method	X-Ray Diffraction	resolution	1.42 Å
ligand	ADP, AMP, HC7, MG, SO4, UNX	enzyme	Transferase E.C.2.7.1.32 BRENDA
Gene Ontology	Chain Function Process Component A nucleotide binding choline kinase activity ethanolamine kinase activity... ATP binding kinase activity transferase activity lipid metabolic process phospholipid metabolic proce... phosphatidylethanolamine bio... phosphatidylcholine biosynth... CDP-choline pathway phospholipid biosynthetic pr... phosphorylation small molecule metabolic pro... glycerophospholipid biosynth... cytoplasm cytosol
Primary reference	Crystal structures of human choline kinase isoforms in complex with hemicholinium-3: single amino acid near the active site influences inhibitor sensitivity., Hong BS, Allali-Hassani A, Tempel W, Finerty PJ Jr, Mackenzie F, Dimov S, Vedadi M, Park HW, J Biol Chem. 2010 May 21;285(21):16330-40. Epub 2010 Mar 18. PMID:20299452

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (72 Kb) [Save to disk] Biological Unit Coordinates (3lq3.pdb1.gz) 130 Kb LPC: Ligand-Protein Contacts for 3LQ3 CSU: Contacts of Structural Units for 3LQ3 Structure Factors (1070 Kb) Retrieve 3LQ3 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3LQ3 from S2C, [Save to disk] Re-refined 3lq3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3LQ3 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 3LQ3

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 3LQ3, from MSDmotif at EBI Fold representative 3lq3 from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3lq3_A] SWISS-PROT database: Domain organization of by SWISSPFAM Alignments of the sequence of 3LQ3 with the sequences similar proteins can be viewed for 3LQ3's classification at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification at ProtoMap. Click on the Cluster number.

Other resources with information on 3LQ3

Community annotation for 3LQ3 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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