1TWL	Hydrolase	date	Jul 01, 2004
title	Inorganic Pyrophosphatase From Pyrococcus Furiosus Pfu-26409
authors	W.Zhou, W.Tempel, Z.J.Liu, L.Chen, L.L.Clancy Kelley, B.D.Dilla R.C.Hopkins, W.B.Arendall Iii, J.P.Rose, J.C.Eneh, R.C.Hopkins, F.E.Jenney Jr., H.S.Lee, T.Li, F.L.Poole Ii, C.Shah, F.J.Sugar, M.W.W.Adams, J.S.Richardson, D.C.Richardson, B.C.Wang, Southea Collaboratory For Structural Genomics (Secsg)
compound		source
Molecule: Inorganic Pyrophosphatase Chain: A Synonym: Pyrophosphate Phospho-Hydrolase, Ppase Ec: 3.6.1.1 Engineered: Yes		Organism_scientific: Pyrococcus Furiosus Organism_taxid: 2261 Gene: Ppa, Pf0257 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: H 3 2	R_factor 0.194 R_Free 0.257
crystal cell	length a length b length c angle alpha angle beta angle gamma 113.434 113.434 73.313 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand		enzyme	Hydrolase E.C.3.6.1.1 BRENDA
related structures	by homologous chain: 1UDE
Gene Ontology	Chain Function Process Component A

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (34 Kb) [Save to disk] Biological Unit Coordinates (1twl.pdb1.gz) 29 Kb Biological Unit Coordinates (1twl.pdb2.gz) 167 Kb CSU: Contacts of Structural Units for 1TWL Likely Quarternary Molecular Structure file(s) for 1TWL Structure Factors (162 Kb) Retrieve 1TWL in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1TWL from S2C, [Save to disk] Re-refined 1twl structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1TWL 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 1TWL

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 1TWL, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1twla_, region A [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1twl] [1twl_A] SWISS-PROT database: [Q8U438] Domain organization of [IPYR_PYRFU] by SWISSPFAM

Other resources with information on 1TWL

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

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