1S8I	Hydrolase, Toxin	date	Feb 02, 2004
title	Crystal Structure Of Lys49-Phospholipase A2 From Agkistrodon Contortrix Laticinctus, Second Fatty Acid Free Form
authors	A.L.B.Ambrosio, D.H.F.De Souza, M.C.Nonato, H.S.Selistre De Ara C.L.Ownby, R.C.Garratt
compound		source
Molecule: Phospholipase A2 Homolog Chain: A Synonym: Myotoxin Ec: 3.1.1.4		Organism_scientific: Agkistrodon Contortrix Laticinctus Organism_common: Broad-Banded Copperhead Organism_taxid: 37195 Strain: Laticinctus Other_details: Snake Venom Protein
symmetry	Space Group: P 41 21 2	R_factor 0.186 R_Free 0.205
crystal cell	length a length b length c angle alpha angle beta angle gamma 70.570 70.570 57.450 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.61 Å
ligand	SO4	enzyme	Hydrolase E.C.3.1.1.4 BRENDA
related structures	by homologous chain: 1Q7A, 1TG4
Gene Ontology	Chain Function Process Component A toxin activity
Primary reference	A molecular mechanism for Lys49-phospholipase A2 activity based on ligand-induced conformational change., Ambrosio AL, Nonato MC, de Araujo HS, Arni R, Ward RJ, Ownby CL, de Souza DH, Garratt RC, J Biol Chem 2005 Feb 25;280(8):7326-35. Epub 2004 Dec 13. PMID:15596433

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (28 Kb) [Save to disk] Biological Unit Coordinates (1s8i.pdb1.gz) 24 Kb LPC: Ligand-Protein Contacts for 1S8I CSU: Contacts of Structural Units for 1S8I Likely Quarternary Molecular Structure file(s) for 1S8I Structure Factors (235 Kb) Retrieve 1S8I in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1S8I from S2C, [Save to disk] Re-refined 1s8i structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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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 1S8I, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1s8ia_, 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: [1s8i] [1s8i_A] SWISS-PROT database: [P49121] Domain organization of [PA2M_AGKCL] by SWISSPFAM Domain found in 1S8I: [PA2c ] by SMART

Other resources with information on 1S8I

Community annotation for 1S8I at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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