Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1991-5-31
pubmed:databankReference
pubmed:abstractText
Isolates of Neisseria lactamica that have increased resistance to penicillin have emerged in recent years. Resistance to penicillin was shown to be due to the production of altered forms of penicillin-binding protein 2 (PBP 2) that have reduced affinity for the antibiotic. The sequences of the PBP 2 genes (penA) from two penicillin-resistant isolates were almost identical (less than or equal to 1% sequence divergence) to that of a penicillin-susceptible isolate, except in a 175-bp region where the resistant and susceptible isolates differed by 27%. The nucleotide sequences of these divergent regions were identical (or almost identical) to the sequence of the corresponding region of the penA gene of N. flavescens NCTC 8263. Altered forms of PBP 2 with decreased affinity for penicillin in the two penicillin-resistant isolates of N. lactamica appear, therefore, to have arisen by the replacement of part of the N. lactamica penA gene with the corresponding region from the penA gene of N. flavescens.
pubmed:grant
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-2121092, http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-2494107, http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-2503813, http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-2510173, http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-2894599, http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-3055170, http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-3100489, http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-3101587, http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-3119361, http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-3126399, http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-3134848, http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-319999, http://linkedlifedata.com/resource/pubmed/commentcorrection/2024965-6778384
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0066-4804
pubmed:author
pubmed:issnType
Print
pubmed:volume
35
pubmed:geneSymbol
penA
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
300-4
pubmed:dateRevised
2010-8-25
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Penicillin-resistant isolates of Neisseria lactamica produce altered forms of penicillin-binding protein 2 that arose by interspecies horizontal gene transfer.
pubmed:affiliation
Servicio de Bacteriologia, Centro Nacional de Microbiologia, Virologia e Immunologia Sanitarias, Madrid, Spain.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't