1W20 Hydrolase date Jun 24, 2004
title Structure Of Neuraminidase From English Duck Subtype N6 Complexed With 30 Mm Sialic Acid (Nana, Neu5ac), Crystal Soaked For 3 Hours At 291 K
authors E.Rudino-Pinera, P.Tunnah, S.J.Crennell, R.G.Webster, W.G.Laver, E.F.Garman
compound source
Molecule: Neuraminidase Subtype N6
Chain: A, B, C, D
Engineered: Yes
Organism_scientific: Influenza Virus Type A
Organism_taxid: 11320
Expression_system: Gallus Gallus
Expression_system_taxid: 9031
Other_details: Influenza Virus Grown In Embrionated Chicken Egg
symmetry Space Group: P 1 21 1
R_factor 0.150 R_Free 0.195
length a length b length c angle alpha angle beta angle gamma
106.478 73.995 106.465 90.00 90.50 90.00
method X-Ray Diffractionresolution 2.08 Å
ligand BMA, CA, GOL, MAN, NAG, SIA enzyme Hydrolase E.C. BRENDA
A, D, C, B

Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (301 Kb) [Save to disk]
  • Biological Unit Coordinates (1w20.pdb1.gz) 287 Kb
  • LPC: Ligand-Protein Contacts for 1W20
  • CSU: Contacts of Structural Units for 1W20
  • Likely Quarternary Molecular Structure file(s) for 1W20
  • Structure Factors (780 Kb)
  • Retrieve 1W20 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1W20 from S2C, [Save to disk]
  • Re-refined 1w20 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1W20 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 1W20
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1W20, from MSDmotif at EBI
  • Fold representative 1w20 from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1w20_B] [1w20_D] [1w20_A] [1w20_C] [1w20]
  • SWISS-PROT database: [Q6XV27]
  • Domain organization of [NRAM_I56A2] by SWISSPFAM
  • Other resources with information on 1W20
  • Community annotation for 1W20 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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