1OTX	Transferase	date	Mar 23, 2003
title	Purine Nucleoside Phosphorylase M64v Mutant
authors	S.E.Ealick, E.M.Bennett, R.Anand, J.A.Secrist, W.B.Parker, A.E.Ha P.W.Allan, D.T.Mcpherson, E.J.Sorscher
compound		source
Molecule: Purine Nucleoside Phosphorylase Chain: A, B, C Synonym: Inosine Phosphorylase, Pnp Ec: 2.4.2.1 Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 61 2 2	R_factor 0.203 R_Free 0.247
crystal cell	length a length b length c angle alpha angle beta angle gamma 119.770 119.770 240.030 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.70 Å
ligand	PO4	enzyme	Transferase E.C.2.4.2.1 BRENDA
related structures	by homologous chain: 1OU4
Gene Ontology	Chain Function Process Component A, C, B
Primary reference	Designer gene therapy using an Escherichia coli purine nucleoside phosphorylase/prodrug system., Bennett EM, Anand R, Allan PW, Hassan AE, Hong JS, Levasseur DN, McPherson DT, Parker WB, Secrist JA 3rd, Sorscher EJ, Townes TM, Waud WR, Ealick SE, Chem Biol 2003 Dec;10(12):1173-81. PMID:14700625

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (116 Kb) [Save to disk] Biological Unit Coordinates (1otx.pdb1.gz) 219 Kb LPC: Ligand-Protein Contacts for 1OTX CSU: Contacts of Structural Units for 1OTX Likely Quarternary Molecular Structure file(s) for 1OTX Structure Factors (246 Kb) Retrieve 1OTX in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1OTX from S2C, [Save to disk] Re-refined 1otx structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1OTX 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 1OTX

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 1OTX, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1otxa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1otxb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1otxc_, region C [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: [1otx_A] [1otx_C] [1otx_B] [1otx] SWISS-PROT database: [P0ABP8] Domain organization of [DEOD_ECOLI] by SWISSPFAM

Other resources with information on 1OTX

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

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