1Q31	Viral Protein, Hydrolase	date	Jul 28, 2003
title	Crystal Structure Of The Tobacco Etch Virus Protease C151a M
authors	C.M.Nunn, S.Djordjevic, R.R.George, G.T.Urquhart, L.H.Chao, Y.Tsu
compound		source
Molecule: Nuclear Inclusion Protein A Chain: A, B Synonym: Tobacco Etch Virus Protease Ec: 3.4.22.44 Engineered: Yes Mutation: Yes		Organism_scientific: Tobacco Etch Virus Organism_taxid: 12227 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: C41(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pret3atev
symmetry	Space Group: C 1 2 1	R_factor 0.240 R_Free 0.302
crystal cell	length a length b length c angle alpha angle beta angle gamma 146.587 41.544 96.063 90.00 108.95 90.00
method	X-Ray Diffraction	resolution	2.70 Å
ligand	BME	enzyme	Hydrolase E.C.3.4.22.44 BRENDA
related structures	by homologous chain: 1LVB
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal Structure of Tobacco Etch Virus Protease Shows the Protein C Terminus Bound within the Active Site., Nunn CM, Jeeves M, Cliff MJ, Urquhart GT, George RR, Chao LH, Tscuchia Y, Djordjevic S, J Mol Biol 2005 Jul 1;350(1):145-55. PMID:15919091

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (74 Kb) [Save to disk] Biological Unit Coordinates (1q31.pdb1.gz) 36 Kb Biological Unit Coordinates (1q31.pdb2.gz) 36 Kb Biological Unit Coordinates (1q31.pdb3.gz) 69 Kb LPC: Ligand-Protein Contacts for 1Q31 CSU: Contacts of Structural Units for 1Q31 Likely Quarternary Molecular Structure file(s) for 1Q31 Structure Factors (123 Kb) Retrieve 1Q31 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1Q31 from S2C, [Save to disk] Re-refined 1q31 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1Q31 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 1Q31

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 1Q31, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1q31a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1q31b_, region B [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: [1q31] [1q31_B] [1q31_A] SWISS-PROT database: [P04517] Domain organization of [POLG_TEV] by SWISSPFAM

Other resources with information on 1Q31

Community annotation for 1Q31 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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