1VKQ	Hydrolase	date	Jun 12, 2004
title	A Re-Determination Of The Structure Of The Triple Mutant (K5 Of Phospholipase A2 At 1.6a Resolution Using Sulphur-Sas At Wavelength
authors	K.Sekar, D.Velmurugan, V.Rajakannan, T.Yamane, M.Dauter, Z.Dauter
compound		source
Molecule: Phospholipase A2 Chain: A Synonym: Phosphatidylcholine 2-Acylhydrolase, Group Ib Phos A2; Ec: 3.1.1.4 Engineered: Yes Mutation: Yes		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pto-A2mbl21
symmetry	Space Group: P 31 2 1	R_factor 0.177 R_Free 0.217
crystal cell	length a length b length c angle alpha angle beta angle gamma 46.050 46.050 101.580 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.60 Å
ligand	CA, CL, MPD	enzyme	Hydrolase E.C.3.1.1.4 BRENDA
related structures	by homologous chain: 1L8S, 4BP2
Gene Ontology	Chain Function Process Component A
Primary reference	A redetermination of the structure of the triple mutant (K53,56,120M) of phospholipase A2 at 1.6 A resolution using sulfur-SAS at 1.54 A wavelength., Sekar K, Rajakannan V, Velmurugan D, Yamane T, Thirumurugan R, Dauter M, Dauter Z, Acta Crystallogr D Biol Crystallogr. 2004 Sep;60(Pt 9):1586-90. Epub 2004, Aug 26. PMID:15333929

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (28 Kb) [Save to disk] Biological Unit Coordinates (1vkq.pdb1.gz) 24 Kb LPC: Ligand-Protein Contacts for 1VKQ CSU: Contacts of Structural Units for 1VKQ Likely Quarternary Molecular Structure file(s) for 1VKQ Structure Factors (111 Kb) Retrieve 1VKQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1VKQ from S2C, [Save to disk] Re-refined 1vkq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1VKQ 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 1VKQ

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 1VKQ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1vkqa_, region A [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1vkq] [1vkq_A] SWISS-PROT database: [P00593] Domain organization of [PA21B_BOVIN] by SWISSPFAM Domain found in 1VKQ: [PA2c ] by SMART

Other resources with information on 1VKQ

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

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