1WCQ	Hydrolase	date	Nov 19, 2004
title	Mutagenesis Of The Nucleophilic Tyrosine In A Bacterial Sial Phenylalanine.
authors	S.Newstead, J.N.Watson, A.J.Bennet, G.Taylor
compound		source
Molecule: Sialidase Chain: A, B, C Fragment: Sialidase, Residues 47-647 Synonym: Neuraminidase Ec: 3.2.1.18 Engineered: Yes Mutation: Yes		Organism_scientific: Micromonospora Viridifaciens Organism_taxid: 1881 Atcc: 31146 Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_plasmid: Pet28a
symmetry	Space Group: P 32 2 1	R_factor 0.175 R_Free 0.238
crystal cell	length a length b length c angle alpha angle beta angle gamma 143.258 143.258 160.250 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	DAN, GOL, NA	enzyme	Hydrolase E.C.3.2.1.18 BRENDA
Gene Ontology	Chain Function Process Component A, C, B
Primary reference	Two nucleophilic mutants of the Micromonospora viridifaciens sialidase operate with retention of configuration by two different mechanisms., Watson JN, Newstead S, Narine AA, Taylor G, Bennet AJ, Chembiochem. 2005 Nov;6(11):1999-2004. PMID:16206228

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (297 Kb) [Save to disk] Biological Unit Coordinates (1wcq.pdb1.gz) 99 Kb Biological Unit Coordinates (1wcq.pdb2.gz) 101 Kb Biological Unit Coordinates (1wcq.pdb3.gz) 98 Kb LPC: Ligand-Protein Contacts for 1WCQ CSU: Contacts of Structural Units for 1WCQ Likely Quarternary Molecular Structure file(s) for 1WCQ Structure Factors (1671 Kb) Retrieve 1WCQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1WCQ from S2C, [Save to disk] Re-refined 1wcq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1WCQ in 3D

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Visual 3D analysis of 1WCQ

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 1WCQ, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1wcq] [1wcq_B] [1wcq_C] [1wcq_A] SWISS-PROT database: [Q02834] Domain organization of [NANH_MICVI] by SWISSPFAM Domain found in 1WCQ: [FA58C ] by SMART

Other resources with information on 1WCQ

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

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