3PTD	Hydrolase	date	Jul 17, 1997
title	Phosphatidylinositol-Specific Phospholipase C Mutant D274s
authors	D.W.Heinz
compound		source
Molecule: Phosphatidylinositol-Specific Phospholipase C Chain: A Synonym: Pi-Plc Ec: 3.1.4.10 Engineered: Yes Mutation: Yes		Organism_scientific: Bacillus Cereus Organism_taxid: 1396 Cellular_location: Secreted Into Medium Gene: Pi-Plc Gene Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Mm294 Expression_system_cellular_location: Periplasm Expression_system_vector_type: Plasmid Expression_system_plasmid: Pbr322 Related Expression_system_gene: Pi-Plc D274s Gene Other_details: Gene Cloned In Escherichia Coli
symmetry	Space Group: P 21 21 21	R_factor 0.177 R_Free 0.262
crystal cell	length a length b length c angle alpha angle beta angle gamma 45.200 46.100 161.000 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand		enzyme	Hydrolase E.C.3.1.4.10 BRENDA
related structures	by homologous chain: 1GYM, 2PTD
Gene Ontology	Chain Function Process Component A
Primary reference	Probing the roles of active site residues in phosphatidylinositol-specific phospholipase C from Bacillus cereus by site-directed mutagenesis., Gassler CS, Ryan M, Liu T, Griffith OH, Heinz DW, Biochemistry 1997 Oct 21;36(42):12802-13. PMID:9335537

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (55 Kb) [Save to disk] Biological Unit Coordinates (3ptd.pdb1.gz) 51 Kb CSU: Contacts of Structural Units for 3PTD Likely Quarternary Molecular Structure file(s) for 3PTD Structure Factors (297 Kb) Retrieve 3PTD in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3PTD from S2C, [Save to disk] Re-refined 3ptd structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3PTD 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 3PTD

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 3PTD, from MSDmotif at EBI Genome occurence of 3PTD's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d3ptd__, region [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: [3ptd_A] [3ptd] SWISS-PROT database: [P14262] Domain organization of [PLC_BACCE] by SWISSPFAM Domain found in 3PTD: [PLCXc ] by SMART

Other resources with information on 3PTD

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

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