Extended Bibliography: |
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Ref #: |
80948 |
Author(s): |
Drancourt,M.;Raoult,D. |
Journal: |
J Clin Microbiol |
Title: |
rpoB gene sequence-based identification of Staphylococcus species |
Volume: |
40 |
Page(s): |
1333-8 |
Year: |
2002 |
Keyword(s): |
*Bacterial Typing Techniques
DNA-Directed RNA Polymerases/*genetics
Databases, Factual
Molecular Sequence Data
Phylogeny
Polymerase Chain Reaction
*Sequence Analysis, DNA
Staphylococcus/*classification/genetics
|
Remarks: |
The complete sequence of rpoB, the gene encoding the beta subunit of RNA polymerase was determined for Staphylococcus saccharolyticus, Staphylococcus lugdunensis, S taphylococcus caprae, and Staphylococcus intermedius and partial sequences were obtained for an additional 27 Staphylococcus species. The complete rpoB sequences varied in length from 3,452 to 3,845 bp and had a 36.8 to 39.2% GC content. The partial sequences had 71.6 to 93.6% interspecies homology and exhibited a 0.08 to 0.8% intraspecific divergence. With a few exceptions, the phylogenetic relationships inferred from the partial rpoB sequences were in agreement with those previously derived from DNA-DNA hybridization studies and analyses of 16S ribosomal DNA gene sequences and partial HSP60 gene sequences. The staphylococcal rpoB sequence database we established enabled us to develop a molecular method for identifying Staphylococcus isolates by PCR followed by direct sequencing of the 751-bp amplicon. In blind tests, this method correctly identified 10 Staphylococcus isolates, and no positive results were obtained with 10 non-Staphylococcus gram-positive and gram-negative bacterial isolates. We propose partial sequencing of the rpoB gene as a new tool for the accurate identification of Staphylococcus isolates. |
URL: |
11923353 |
|
Ref #: |
81199 |
Author(s): |
Becker,K.;Harmsen,D.;Mellmann,A.;Meier,C.;Schumann,P.;Peters,G.;von Eiff,C. |
Journal: |
J Clin Microbiol |
Title: |
Development and evaluation of a quality-controlled ribosomal sequence database for 16S ribosomal DNA-based identification of Staphylococcus species |
Volume: |
42 |
Page(s): |
4988-95 |
Year: |
2004 |
Keyword(s): |
GENBANK/AY688029
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GENBANK/AY688109
*Bacterial Typing Techniques
DNA, Bacterial/analysis
DNA, Ribosomal/analysis
*Databases, Nucleic Acid
Genes, rRNA
Humans
Molecular Sequence Data
RNA, Ribosomal, 16S/*genetics
Sequence Analysis, DNA
Species Specificity
Staphylococcal Infections/*microbiology
Staphylococcus/*classification/genetics/metabolism
|
Remarks: |
To establish an improved ribosomal gene sequence database as part of the Ribosomal Differentiation of Microorganisms (RIDOM) project and to overcome the drawbacks of phenotypic identification systems and publicly accessible sequence databases, both strands of the 5' end of the 16S ribosomal DNA (rDNA) of 81 type and reference strains comprising all validly described staphylococcal (sub)species were sequenced. Assuming a normal distribution for pairwise distances of all unique staphylococcal sequences and choosing a reporting criterion of > or =98.7% similarity for a "distinct species," a statistical error probability of 1.0% was calculated. To evaluate this database, a 16S rDNA fragment (corresponding to Escherichia coli positions 54 to 510) of 55 clinical Staphylococcus isolates (including those of the small-colony variant phenotype) were sequenced and analyzed by the RIDOM approach. Of these isolates, 54 (98.2%) had a similarity score above the proposed threshold using RIDOM; 48 (87.3%) of the sequences gave a perfect match, whereas 83.6% were found by searching National Center for Biotechnology Information (NCBI) database entries. In contrast to RIDOM, which showed four ambiguities at the species level (mainly concerning Staphylococcus intermedius versus Staphylococcus delphini), the NCBI database search yielded 18 taxon-related ambiguities and showed numerous matches exhibiting redundant or unspecified entries. Comparing molecular results with those of biochemical procedures, ID 32 Staph (bioMerieux, Marcy I'Etoile, France) and VITEK 2 (bioMerieux) failed to identify 13 (23.6%) and 19 (34.5%) isolates, respectively, due to incorrect identification and/or categorization below acceptable values. In contrast to phenotypic methods and the NCBI database, the novel high-quality RIDOM sequence database provides excellent identification of staphylococci, including rarely isolated species and phenotypic variants. |
URL: |
15528685 |
|
Ref #: |
1291 |
Author(s): |
Kocur,M.;Bohácek,J. |
Journal: |
Microbios |
Title: |
DNA base composition and classification of non-pigmented micrococci. |
Volume: |
10A |
Page(s): |
31-38 |
Year: |
1974 |
|
Ref #: |
1300 |
Author(s): |
Skerman,V.B.D.;McGowan,V.;Sneath,P.H.A.(ed) |
Journal: |
Int. J. Syst. Bacteriol. |
Title: |
Approved Lists of Bacterial Names. |
Volume: |
30 |
Page(s): |
225-420 |
Year: |
1980 |
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Ref #: |
1331 |
Author(s): |
Devriese,L.A.;Hajek,V.;Oeding,P.;Meyer,S.A.;Schleifer,K.H. |
Journal: |
Int. J. Syst. Bacteriol. |
Title: |
Staphylococcus hyicus (Sompolinsky 1953) comb. nov. and Staphylococcus hyicus subsp. chromogenes subsp. nov. |
Volume: |
28 |
Page(s): |
482-490 |
Year: |
1978 |
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Ref #: |
3339 |
Author(s): |
Hajek,V.;Devriese,L.A.;Mordarski,M.;Goodfellow,M.;Pulverer,G. |
Journal: |
System. Appl. Microbiol. |
Title: |
Elevation of Staphylococcus hyicus subsp. chromogenes (Devriese et al., 1978) to species status: Staphylococcus chromogenes (Devriese et al., 1978) comb. nov. |
Volume: |
8 |
Page(s): |
169-173 |
Year: |
1986 |
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Ref #: |
493 |
Author(s): |
Schleifer,K.H.;Kocur,M. |
Journal: |
Arch. Mikrobiol. |
Title: |
Classification of staphylococci based on chemical and biochemical properties. |
Volume: |
93 |
Page(s): |
65-85 |
Year: |
1973 |
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