1PF7	Transferase	date	May 24, 2003
title	Crystal Structure Of Human Pnp Complexed With Immucillin H
authors	W.F.De Azevedo Jr., F.Canduri, D.M.Dos Santos, J.H.Pereira, M.V. R.G.Silva, M.A.Mendes, M.S.Palma, L.A.Basso, D.S.Santos
compound		source
Molecule: Purine Nucleoside Phosphorylase Chain: E Synonym: Inosine Phosphorylase, Pnp Ec: 2.4.2.1 Engineered: Yes Other_details: Complexed With Immucillin H, Residue Imh		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid
symmetry	Space Group: H 3 2	R_factor 0.200 R_Free 0.272
crystal cell	length a length b length c angle alpha angle beta angle gamma 139.390 139.390 161.310 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.60 Å
ligand	IMH, SO4 BindingDB	enzyme	Transferase E.C.2.4.2.1 BRENDA
related structures	by homologous chain: 1RR6, 1V2H
Gene Ontology	Chain Function Process Component E nucleoside binding purine nucleobase binding purine-nucleoside phosphoryl... drug binding transferase activity transferase activity, transf... phosphate ion binding nucleobase-containing compou... purine nucleobase metabolic ... inosine catabolic process purine nucleotide catabolic ... nicotinamide riboside catabo... immune response NAD biosynthesis via nicotin... urate biosynthetic process positive regulation of T cel... response to drug purine-containing compound s... small molecule metabolic pro... positive regulation of alpha... nucleobase-containing small ... interleukin-2 secretion intracellular cytoplasm cytosol cytoskeleton
Primary reference	Structural basis for inhibition of human PNP by immucillin-H., Filgueira de Azevedo W Jr, Canduri F, Marangoni dos Santos D, Pereira JH, Dias MV, Silva RG, Mendes MA, Basso LA, Palma MS, Santos DS, Biochem Biophys Res Commun 2003 Oct 3;309(4):917-22. PMID:13679061

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (53 Kb) [Save to disk] Biological Unit Coordinates (1pf7.pdb1.gz) 142 Kb LPC: Ligand-Protein Contacts for 1PF7 CSU: Contacts of Structural Units for 1PF7 Likely Quarternary Molecular Structure file(s) for 1PF7 Structure Factors (123 Kb) Retrieve 1PF7 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1PF7 from S2C, [Save to disk] Re-refined 1pf7 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1PF7 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 1PF7

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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 Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 1PF7, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1pf7e_, region E [Jmol] [rasmolscript] [script source] Fold representative 1pf7 from FSSP and Dali (Families of Structurally Similar Proteins) 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: [1pf7_E] SWISS-PROT database: [P00491] Domain organization of [PNPH_HUMAN] by SWISSPFAM Alignments of the sequence of 1PF7 with the sequences similar proteins can be viewed for 1PF7's classification [PNPH_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [PNPH_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 1PF7

Community annotation for 1PF7 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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