1a2t Summary

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STAPHYLOCOCCAL NUCLEASE, B-MERCAPTOETHANOL DISULFIDE TO V23C VARIANT

The structure was published by Wynn, R., Harkins, P.C., Richards, F.M., and Fox, R.O., in 1996 in a paper entitled "Mobile unnatural amino acid side chains in the core of staphylococcal nuclease." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.96 Å and deposited in 1998.

The experimental data on which the structure is based was not deposited.

The PDB entry contains the structure of STAPHYLOCOCCAL NUCLEASE. This molecule has the UniProt identifier P00644 (NUC_STAAU)search. The sample contained 149 residues which is < 90% of the natural sequence. Out of 149 residues 135 were observed and are deposited in the PDB.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

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 STAPHYLOCOCCAL NUCLEASE P00644 (83-231) (NUC_STAAU)search Staphylococcus aureussearch < 90% 149 90%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P00644 (83 - 231) STAPHYLOCOCCAL NUCLEASE Staphylococcus aureus

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A Staphylococcal nucleasesearch OB fold (Dihydrolipoamide Acetyltransferase, E2P)search Staphylococcal nuclease homologuesearch

Chain ID Molecular function (GO)
A (P00644) nucleic acid bindingsearch nuclease activitysearch hydrolase activity, acting on ester bondssearch

Chain InterPro annotation
A Thermonuclease active sitesearch Staphylococcal nuclease (SNase-like), OB-foldsearch