Cited by 91Biochemical and Structural CharacterizationAntimicrobial Resistance in StaphylococcusBacterial Genetics and Biotechnology

The Structure of Sortase B, a Cysteine Transpeptidase that Tethers Surface Protein to the Staphylococcus aureus Cell Wall

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Zong, Yinong, Mazmanian, Sarkis K, Schneewind, Olaf, Narayana, Sthanam V.L·2004·Structure

Abstract

Many surface proteins of Gram-positive bacteria, which play important roles during the pathogenesis of human infections, are anchored to the cell wall envelope by a mechanism requiring sortases. Sortase B, a cysteine transpeptidase from Staphylococcus aureus, cleaves the C-terminal sorting signal of IsdC at the NPQTN motif and tethers the polypeptide to the pentaglycine cell wall cross-bridge. During catalysis, the active site cysteine of sortase and the cleaved substrate form an acyl intermediate, which is then resolved by the amino group of pentaglycine cross-bridges. We report here the crystal structures of SrtBDeltaN30 in complex with two active site inhibitors, MTSET and E64, and with the cell wall substrate analog tripleglycine. These structures reveal, for the first time, the active site disposition and the unique Cys-Arg catalytic machinery of the cysteine transpeptidase, and they also provide useful information for the future design of anti-infective agents against sortases.

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Crossref · 10.1016/j.str.2003.11.021

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  • The X-ray structure of S. aureus sortase B revealed the presence of an arginine residue in the near vicinity of the catalytic cysteine which is highly conserved among all sortases.

    “Recently, the X-ray structure of S. aureus sortase B revealed the presence of an arginine residue in the near vicinity of the catalytic cysteine which is highly conserved among all sortases [45].”

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  1. [11]11. Ramakrishnan, V., and Biou, V. (1997). Treatment of multiwavelength anomolous diffraction data as a special case of multiple isomor- phous replacement. In Methods in Enzymology (New York, Aca- demic Press), pp. 538-557.

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Authors
Zong, Y., Mazmanian, S. K., Schneewind, O., & Narayana, S. V. L.
Affiliations
  • University of Alabama at Birmingham (US)
  • University of Chicago (US)
Corresponding author
Narayana, Sthanam V.L
Venue
Structure
Publisher
Elsevier BV
Published
2004-03
Volume
12
Issue
1
Pages
105-112
ISSN
0969-2126 (ISSN-L)
OpenAlex
W1992162955
Cited by
91
References
39
Citations by year
2026: 3 · 2025: 6 · 2024: 1 · 2022: 2 · 2021: 2 · 2020: 4 · 2019: 3 · 2018: 4 · 2017: 4 · 2016: 5 · 2015: 6 · 2014: 9 · 2013: 6 · 2012: 2
FWCI
1.66
Type
journal article
Language
en
Open access
Locations
  • Structure (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Funders
National Aeronautics and Space Administration
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Structural Characterization
  • Health Sciences › Medicine › Infectious Diseases › Antimicrobial Resistance in Staphylococcus
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
Keywords
Staphylococcus aureus, cell wall anchoring, IsdC, active-site-directed inhibitors, MTSET, E-64, crystal structure
MeSH terms
Amino Acid Sequence, Anti-Infective Agents, Bacterial Proteins, Cell Wall, Cysteine, Cysteine Endopeptidases, Enzyme Inhibitors, Glycine, Mesylates, Molecular Sequence Data, Peptidyl Transferases, Staphylococcus aureus, Protein Structure, Tertiary, Aminoacyltransferases, Amino Acid Motifs, Protein Transport

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