Publications

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evidence for recombination between a sialidase (nanh) of actinomyces naeslundii and actinomyces oris, previously named 'actinomyces naeslundii genospecies 1 and 2'.actinomyces spp., predominant members of human oral biofilms, may use extracellular sialidase to promote adhesion, deglycosylate immunoglobulins and liberation of nutrients. partial nanh gene sequences (1,077 bp) from actinomyces oris (n=74), actinomyces naeslundii (n=30), actinomyces viscosus (n=1) and actinomyces johnsonii (n=2) which included the active-site region and the bacterial neuraminidase repeats (bnrs) were compared. the sequences were aligned and each species formed a distinct clust ...200818823396
emended description of actinomyces naeslundii and descriptions of actinomyces oris sp. nov. and actinomyces johnsonii sp. nov., previously identified as actinomyces naeslundii genospecies 1, 2 and wva 963.actinomyces naeslundii is an important early colonizer in the oral biofilm and consists of three genospecies (1, 2 and wva 963) which cannot be readily differentiated using conventional phenotypic testing or on the basis of 16s rrna gene sequencing. we have investigated a representative collection of type and reference strains and clinical and oral isolates (n=115) and determined the partial gene sequences of six housekeeping genes (atpa, rpob, pgi, metg, glta and gyra). these sequences identifi ...200919244431
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