2QSK image
Deposition Date 2007-07-31
Release Date 2007-11-27
Last Version Date 2024-10-30
Entry Detail
PDB ID:
2QSK
Title:
Atomic-resolution crystal structure of the Recombinant form of Scytovirin
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
1.00 Å
R-Value Free:
0.14
R-Value Work:
0.12
R-Value Observed:
0.12
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:scytovirin
Chain IDs:A
Chain Length:95
Number of Molecules:1
Biological Source:Scytonema varium
Primary Citation
Atomic-resolution crystal structure of the antiviral lectin scytovirin.
Protein Sci. 16 2756 2760 (2007)
PMID: 17965185 DOI: 10.1110/ps.073157507

Abstact

The crystal structures of the natural and recombinant antiviral lectin scytovirin (SVN) were solved by single-wavelength anomalous scattering and refined with data extending to 1.3 A and 1.0 A resolution, respectively. A molecule of SVN consists of a single chain 95 amino acids long, with an almost perfect sequence repeat that creates two very similar domains (RMS deviation 0.25 A for 40 pairs of Calpha atoms). The crystal structure differs significantly from a previously published NMR structure of the same protein, with the RMS deviations calculated separately for the N- and C-terminal domains of 5.3 A and 3.7 A, respectively, and a very different relationship between the two domains. In addition, the disulfide bonding pattern of the crystal structures differs from that described in the previously published mass spectrometry and NMR studies.

Legend

Protein

Chemical

Disease

Primary Citation of related structures