1S6B	Hydrolase	date	Jan 23, 2004
title	X-Ray Crystal Structure Of A Complex Formed Between Two Homo Isoforms Of Phospholipase A2 From Naja Naja Sagittifera: Pr Molecular Association And Inactivation
authors	T.Jabeen, S.Sharma, R.K.Singh, P.Kaur, T.P.Singh
compound		source
Molecule: Phospholipase A2 Isoform 1 Chain: A Synonym: Phospholipase A2, Phosphatidylcholine 2-Acylhydrol Ec: 3.1.1.4		Organism_scientific: Naja Sagittifera Organism_taxid: 195058 Secretion: Venom
Molecule: Phospholipase A2 Isoform 2 Chain: B Synonym: Phospholipase A2, Phosphatidylcholine 2-Acylhydrol Ec: 3.1.1.4		Organism_scientific: Naja Sagittifera Organism_taxid: 195058 Secretion: Venom
symmetry	Space Group: P 41	R_factor 0.206 R_Free 0.236
crystal cell	length a length b length c angle alpha angle beta angle gamma 64.537 64.537 57.117 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.60 Å
ligand	ACY, CA, PO4	enzyme	Hydrolase E.C.3.1.1.4 BRENDA
note	1S6B supersedes 1LFJ
related structures	by homologous chain: 1LN8, 1SZ8
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure of a calcium-induced dimer of two isoforms of cobra phospholipase A2 at 1.6 A resolution., Jabeen T, Sharma S, Singh N, Singh RK, Kaur P, Perbandt M, Betzel Ch, Srinivasan A, Singh TP, Proteins 2005 Jun 1;59(4):856-63. PMID:15828003

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (49 Kb) [Save to disk] Biological Unit Coordinates (1s6b.pdb1.gz) 44 Kb LPC: Ligand-Protein Contacts for 1S6B CSU: Contacts of Structural Units for 1S6B Likely Quarternary Molecular Structure file(s) for 1S6B Retrieve 1S6B in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1S6B from S2C, [Save to disk]

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Visual 3D analysis of 1S6B

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1S6B, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1s6ba_, region A [Jmol] [rasmolscript] [script source]     - Domain d1s6bb_, region B [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: [1s6b_A] [1s6b_B] [1s6b] SWISS-PROT database: [P60043] [P60044] Domain organization of [PA21B_NAJSG] [PA22_NAJSG] by SWISSPFAM Domain found in 1S6B: [PA2c ] by SMART

Other resources with information on 1S6B

Community annotation for 1S6B at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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