1XAK Viral Protein date Aug 26, 2004
title Structure Of The Sars-Coronavirus Orf7a Accessory Protein
authors C.A.Nelson, C.A.Lee, D.H.Fremont, Midwest Center For Structural Genomics (Mcsg)
compound source
Molecule: Sars Orf7a Accessory Protein
Chain: A
Fragment: N-Terminal Ectodomain (Residues 14-96)
Engineered: Yes
 Organism_scientific: Sars Coronavirus
Organism_taxid: 227859
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3)Ril Codon (+) E.Coli Cells (Stratagene);
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet-21a (Emd Biosciences)
symmetry Space Group: P 31
R_factor 0.223 R_Free 0.275
crystal
cell
length a length b length c angle alpha angle beta angle gamma
37.100 37.100 55.330 90.00 90.00 120.00
method X-Ray Diffractionresolution 1.80 Å
Primary referenceStructure and intracellular targeting of the SARS-coronavirus Orf7a accessory protein., Nelson CA, Pekosz A, Lee CA, Diamond MS, Fremont DH, Structure (Camb) 2005 Jan;13(1):75-85. PMID:15642263
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (18 Kb) [Save to disk]
  • Biological Unit Coordinates (1xak.pdb1.gz) 14 Kb
  • CSU: Contacts of Structural Units for 1XAK
  • Likely Quarternary Molecular Structure file(s) for 1XAK
  • Structure Factors (75 Kb)
  • Retrieve 1XAK in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1XAK from S2C, [Save to disk]
  • Re-refined 1xak structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 1XAK 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 1XAK
  • 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 1XAK, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1xaka_, region A [Jmol] [rasmolscript] [script source]
    • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1xak] [1xak_A]
  • SWISS-PROT database: [P59635]
  • Domain organization of [NS7A_CVHSA] by SWISSPFAM
    • Other resources with information on 1XAK
  • Community annotation for 1XAK 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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