1yo4 Summary

pdbe.org/1yo4
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Solution Structure of the SARS Coronavirus ORF 7a coded X4 protein

The structure was published by Haenel, K., Stangler, T., Stoldt, M., and Willbold, D., in 2006 in a paper entitled "Solution structure of the X4 protein coded by the SARS related coronavirus reveals an immunoglobulin like fold and suggests a binding activity to integrin I domains." (abstract).

The structure was determined using NMR spectroscopy and deposited in 2005.

The experimental data on which the structure is based was also deposited.

The PDB entry contains the structure of Hypothetical protein X4. This molecule has the UniProt identifier P59635 (NS7A_CVHSA)search. The sample contained 87 residues which is < 90% of the natural sequence. Out of 87 residues 87 were observed and are deposited in the PDB.

The molecule is most likely monomeric.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A Hypothetical protein X4 P59635 (16-99) (NS7A_CVHSA)search SARS coronavirussearch < 90% 87 100%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P59635 (16 - 99) Hypothetical protein X4 SARS coronavirus

Chain Structural classification (CATH) Sequence family (Pfam)
A Sars orf7a accessory protein.search SARS coronavirus X4 likesearch
Chain InterPro annotation
A SARS coronavirus X4-likesearch