The three S-layer-like homology motifs of the S-layer protein SbpA of Bacillus sphaericus CCM 2177 are not sufficient for binding to the pyruvylated secondary cell wall polymer.

The three S-layer-like homology motifs of the S-layer protein SbpA of Bacillus sphaericus CCM 2177 are not sufficient for binding to the pyruvylated secondary cell wall polymer. Research Abstract Details 

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The three S-layer-like homology motifs of the S-layer protein SbpA of Bacillus sphaericus CCM 2177 are not sufficient for binding to the pyruvylated secondary cell wall polymer. Abstract Text:

The S-layer protein SbpA of Bacillus sphaericus CCM 2177 recognizes a pyruvylated secondary cell wall polymer (SCWP) as anchoring structure to the peptidoglycan-containing layer. Data analysis from surface plasmon resonance (SPR) spectroscopy revealed the existence of three different binding sites with high, medium and low affinity for rSbpA on SCWP immobilized to the sensor chip. The shortest C-terminal truncation with specific affinity to SCWP was rSbpA(31-318). Surprisingly, rSbpA(31-202) comprising the three S-layer-like homology (SLH) motifs did not bind at all. Analysis of the SbpA sequence revealed a 58-amino-acid-long SLH-like motif starting 11 amino acids after the third SLH motif. The importance of this motif for reconstituting the functional SCWP-binding domain was further demonstrated by construction of a chimaeric protein consisting of the SLH domain of SbsB, the S-layer protein of Geobacillus stearothermophilus PV72/p2 and the C-terminal part of SbpA. In contrast to SbsB or its SLH domain which did not recognize SCWP of B. sphaericus CCM 2177 as binding site, the chimaeric protein showed specific affinity. Deletion of 213 C-terminal amino acids of SbpA had no impact on the square (p4) lattice structure, whereas deletion of 350 amino acids was linked to a change in lattice type from square to oblique (p1).

The three S-layer-like homology motifs of the S-layer protein SbpA of Bacillus sphaericus CCM 2177 are not sufficient for binding to the pyruvylated secondary cell wall polymer. Publishing Authors By Initials

For similar investigative techniques: chemistry, analytical: surface plasmon resonance research abstracts see: investigative techniques: chemistry, analytical: surface plasmon resonance research

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The three S-layer-like homology motifs of the S-layer protein SbpA of Bacillus sphaericus CCM 2177 are not sufficient for binding to the pyruvylated secondary cell wall polymer. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Molecular microbiology

VOLUME: 55

Page Numbers: 197-205

Journal Abbreviation: Mol. Microbiol.

ISSN: 0950-382X

DAY: 24

MONTH: Jan

YEAR: 2005

The three S-layer-like homology motifs of the S-layer protein SbpA of Bacillus sphaericus CCM 2177 are not sufficient for binding to the pyruvylated secondary cell wall polymer. Information

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LANGUAGE: eng

NlmUniqueID: 8712028

The three S-layer-like homology motifs of the S-layer protein SbpA of Bacillus sphaericus CCM 2177 are not sufficient for binding to the pyruvylated secondary cell wall polymer. Keywords Mesh Terms:

KEYWORDS: Surface Plasmon Resonance

MESH TERMS: metabolism

Chemical & Substance for Abstract: The three S-layer-like homology motifs of the S-layer protein SbpA of Bacillus sphaericus CCM 2177 are not sufficient for binding to the pyruvylated secondary cell wall polymer. Information

Substance Name: SbsB protein, Bacillus stearothermophilu

Registry Number: 0

Grant and Affiliation Information for The three S-layer-like homology motifs of the S-layer protein SbpA of Bacillus sphaericus CCM 2177 are not sufficient for binding to the pyruvylated secondary cell wall polymer.

AFFILIATION: BMT-Biomolecular Therapeutics GmbH, Brunner Strasse 59, A-1235 Vienna, Austria.

Country: England

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MEDLINETA: Mol Microbiol

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