Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1995-4-17
pubmed:abstractText
Staphylococcal neutral phosphatase (NPtase) was purified from two Staphylococcus aureus strains by sequential high salt extraction, ultracentrifugation and ion exchange chromatography. The enzyme showed maximum phosphatase activity at neutral pH, appeared as two bands in SDS-PAGE (31 and 32 kDa), and the isoelectric point was > 10. No close similarity between NPtase and other known bacterial proteins in respect of their N-terminal amino acid sequences was found. Purified NPtase bound rat and human polyclonal IgG [intact and F(ab')2 fragments], IgM, IgA, intact myeloma immunoglobulins, myeloma light chains, gamma heavy chain and, with a much lower affinity, Fc fragments. Furthermore, NPtase can bind serum albumin. Heparin, a highly negatively charged molecule, significantly inhibited NPtase binding to immunoglobulins and HSA, but did not inhibit the binding of specific antibodies to NPtase; this indicates that charge interactions are important. The newly characterized staphylococcal phosphatase with binding properties for immunoglobulin is an interesting bacterial protein that could be involved in post-infectious sequelae.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0903-4641
pubmed:author
pubmed:issnType
Print
pubmed:volume
102
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
891-900
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Staphylococcal neutral phosphatase. A highly cationic molecule with binding properties for immunoglobulin.
pubmed:affiliation
Department of Immunology, Freiburg University, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't