2W20 Hydrolase date Oct 21, 2008
title Structure Of The Catalytic Domain Of The Native Nana Sialidase From Streptococcus Pneumoniae
authors G.Xu, P.W.Andrew, G.L.Taylor
compound source
Molecule: Sialidase A
Chain: A, B
Fragment: Catalytic Domain, Residues 321-791
Synonym: Neuraminidase A, Nana Sialidase
Ec: 3.2.1.18
Engineered: Yes
Organism_scientific: Streptococcus Pneumoniae
Organism_taxid: 171101
Strain: R6
Expression_system: Escherichia Coli
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
symmetry Space Group: P 21 21 21
R_factor 0.200 R_Free 0.225
crystal
cell
length a length b length c angle alpha angle beta angle gamma
47.200 96.600 218.200 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.49 Å
ligand CL, GOL, MES enzyme Hydrolase E.C.3.2.1.18 BRENDA
Gene
Ontology
ChainFunctionProcessComponent
A, B


Primary referenceStructure of the catalytic domain of Streptococcus pneumoniae sialidase NanA., Xu G, Li X, Andrew PW, Taylor GL, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2008 Sep 1;64(Pt, 9):772-5. Epub 2008 Aug 20. PMID:18765901
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (175 Kb) [Save to disk]
  • Biological Unit Coordinates (2w20.pdb1.gz) 88 Kb
  • Biological Unit Coordinates (2w20.pdb2.gz) 86 Kb
  • LPC: Ligand-Protein Contacts for 2W20
  • CSU: Contacts of Structural Units for 2W20
  • Structure Factors (1170 Kb)
  • Retrieve 2W20 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2W20 from S2C, [Save to disk]
  • Re-refined 2w20 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2W20 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 2W20
  • 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 2W20, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2w20_A] [2w20_B] [2w20]
  • SWISS-PROT database: [P62576]
  • Domain organization of [NANA_STRR6] by SWISSPFAM
  • Other resources with information on 2W20
  • Community annotation for 2W20 at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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