Journal
FEMS MICROBIOLOGY LETTERS
Volume 246, Issue 2, Pages 251-257Publisher
WILEY-BLACKWELL
DOI: 10.1016/j.femsle.2005.04.013
Keywords
Bifidobacterium; phosphoketolase; xfp; strain identification; detection
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The nucleotide sequence of the xfp-gene region in six known and two unknown species of Bifidobacterium was determined and compared with the published sequences of B. animalis subsp. lactis DSM10140 and B. longum biovar longum NCC2705. The xfp coding sequences were 73% identical and coded for 825 amino acids in all 10 sequences. Partial sequences of an adjacent gene, guaA, were 61% identical in six sequences for which data were available. The region between xfp and guaA was variable in both length and sequence. Oligonucleotide sequences from the conserved and variable xfp regions were used as PCR primers, in combinations of appropriate specificity, for the detection and identification of Bifidobacterium isolates. (c) 2005 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.
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