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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1999-1-28
pubmed:abstractText
A 3.8-kb DNA fragment which was able to complement the mutation of a lysine auxotrophic Thermus thermophilus mutant was cloned from T. thermophilus HB27. Sequence analysis of the 3.8-kb fragment indicated the presence of three open reading frames including a truncated one. The predicted amino acid sequences of two of the three open reading frames showed 55.2% and 45.0% identity with homocitrate synthase and homoaconitate hydratase of Saccharomyces cerevisiae, respectively. These two enzymes act as lysine biosynthetic enzymes through the alpha-aminoadipate pathway which has been reported in S. cerevisiae and fungi. Each of the two open reading frames in T. thermophilus was disrupted by integration of the heat-stable kanamycin nucleotidyltransferase gene. The resulting mutants showed lysine auxotrophy, which could be complemented with alpha-aminoadipate but not with diaminopimelate. These results indicate that lysine was synthesized through the alpha-aminoadipate pathway and not through the diaminopimelate pathway in T. thermophilus.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0378-1097
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
169
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
361-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Lysine is synthesized through the alpha-aminoadipate pathway in Thermus thermophilus.
pubmed:affiliation
Institute of Applied Biochemistry, University of Tsukuba, Ibaraki, Japan.
pubmed:publicationType
Journal Article