PMID- 10206697 OWN - NLM STAT- MEDLINE DCOM- 19990413 LR - 20200826 IS - 1350-0872 (Print) IS - 1350-0872 (Linking) VI - 145 ( Pt 1) DP - 1999 Jan TI - Staphylococcus aureus expresses a cell surface protein that binds both IgG and beta2-glycoprotein I. PG - 177-183 LID - 10.1099/13500872-145-1-177 [doi] AB - The existence of a second IgG-binding protein, protein Sbi, in Staphylococcus aureus has been reported previously. Later data indicated that protein Sbi also bound another serum component. This component has now been affinity-purified on immobilized protein Sbi and identified as beta2-glycoprotein I (beta2-GPI), also known as apolipoprotein H. The minimal beta2-GPI-binding domain was identified by shotgun phage display and the binding was shown to be mediated by a region of 57 amino acids, clearly separated from the IgG-binding domain. It is also shown that protein Sbi, and thus the beta2-GPI-binding activity, is expressed on the staphylococcal cell surface at levels varying between strains. FAU - Zhang, Lihong AU - Zhang L FAU - Jacobsson, Karin AU - Jacobsson K FAU - Strom, Katrin AU - Strom K FAU - Lindberg, Martin AU - Lindberg M FAU - Frykberg, Lars AU - Frykberg L LA - eng SI - GENBANK/AF130864 PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Microbiology (Reading) JT - Microbiology (Reading, England) JID - 9430468 RN - 0 (Bacterial Proteins) RN - 0 (Carrier Proteins) RN - 0 (Glycoproteins) RN - 0 (Immunoglobulin G) RN - 0 (Membrane Proteins) RN - 0 (Peptide Library) RN - 0 (Sbi protein, Staphylococcus aureus) RN - 0 (beta 2-Glycoprotein I) SB - IM MH - Amino Acid Sequence MH - Animals MH - *Bacterial Proteins MH - Bacteriophages/genetics MH - Binding Sites MH - Blotting, Western MH - Carrier Proteins/analysis/chemistry/genetics/*metabolism MH - Chromatography, Affinity MH - Glycoproteins/blood/chemistry/isolation & purification/*metabolism MH - Humans MH - Immunoglobulin G/*metabolism MH - Membrane Proteins/analysis/chemistry/*metabolism MH - Molecular Sequence Data MH - Peptide Library MH - Protein Binding MH - Staphylococcus aureus/chemistry/*metabolism MH - beta 2-Glycoprotein I EDAT- 1999/04/17 00:00 MHDA- 1999/04/17 00:01 CRDT- 1999/04/17 00:00 PHST- 1999/04/17 00:00 [pubmed] PHST- 1999/04/17 00:01 [medline] PHST- 1999/04/17 00:00 [entrez] AID - 10.1099/13500872-145-1-177 [doi] PST - ppublish SO - Microbiology (Reading). 1999 Jan;145 ( Pt 1):177-183. doi: 10.1099/13500872-145-1-177.