ISDA: 1STY

Deposition Date 1993-02-18

Release Date 1993-04-15

Last Version Date 2024-02-14

Entry Detail

PDB ID:

1STY

Keywords:

HYDROLASE (PHOSPHORIC DIESTER)

Title:

THE ALPHA ANEURISM: A STRUCTURAL MOTIF REVEALED IN AN INSERTION MUTANT OF STAPHYLOCOCCAL NUCLEASE

Biological Source:

Source Organism:

Staphylococcus aureus (Taxon ID: 1280)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.67 Å

R-Value Work:

0.17

Space Group:

P 41

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:STAPHYLOCOCCAL NUCLEASE
Gene (Uniprot):nuc
Chain IDs:A
Chain Length:150
Number of Molecules:1
Biological Source:Staphylococcus aureus

UniProt ID:P00644 Pfam ID:PF00565 EC:3.1.31.1

Ligand Molecules

THP

Primary Citation

The alpha aneurism: a structural motif revealed in an insertion mutant of staphylococcal nuclease.

Keefe, L.J, Sondek, J, Shortle, D, Lattman, E.E, Keefe, L.J, Lattman, E.E, Wolkow, C, Woods, A, Chevrier, M, Cotter, R.J.Show

Proc.Natl.Acad.Sci.USA 90 3275 3279 (1993)

PMID: 8475069 DOI: 10.1073/pnas.90.8.3275

Abstact

The x-ray crystal structure of a mutant of staphylococcal nuclease that contains a single glycine residue inserted in the C-terminal alpha-helix has been solved to 1.67 A resolution and refined to a crystallographic R value of 0.170. This inserted glycine residue is accommodated in the alpha-helix by formation of a previously uncharacterized bulge, which we term the alpha aneurism. A conformational search of known protein structures has identified the alpha aneurism in a number of protein families, including the histocompatibility antigens and hemoglobins.

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Primary Citation of related structures