Linked Life Data

9222043

Source:http://linkedlifedata.com/resource/pubmed/id/9222043

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1997-8-26
pubmed:abstractText
We report a survey of beta-lactamases and their transferability in Klebsiella spp. isolated from blood during 1992-95. beta-Lactamases were characterized by determination of isoelectric point (pI), by hybridization of plasmid DNA preparations with probes for SHV and TEM sequences and by PCR with SHV- or TEM-specific primers. There were 80 isolates of Klebsiella pneumoniae and 22 isolates of Klebsiella oxytoca. Most isolates of K. pneumoniae had a chromosomally encoded SHV-1 beta-lactamase (or a closely related enzyme); K. oxytoca also produced chromosomal beta-lactamases, but these were distinct from SHV-1. Plasmid-encoded beta-lactamases were rare in Klebsiella spp., being found in six (7.5%) isolates of K. pneumoniae and in none of the K. oxytoca. beta-Lactamase activities were relatively low (< 100 nmoles nitrocefin hydrolysed per minute per mg of protein) and ampicillin MICs were < or = 128 mg/L for most isolates of both species. However, all isolates of K. pneumoniae with plasmid-encoded beta-lactamases, three other isolates of K. pneumoniae and three isolates of K. oxytoca had high beta-lactamase activities (> 100 nmoles/mg/min) and very high ampicillin MICs (> or = 1024 mg/L).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0305-7453
pubmed:author
pubmed:issnType
Print
pubmed:volume
39
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
737-45
pubmed:dateRevised
2006-5-1
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Rarity of transferable beta-lactamase production by Klebsiella species.
pubmed:affiliation
Department of Microbiology, UMDS, St Thomas's Campus, London, UK.
pubmed:publicationType
Journal Article