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Non contiguous-finished genome sequence and description of Peptoniphilus grossensis sp. nov.

Mishra AK, Hugon P, Robert C, Raoult D, Fournier PE - Stand Genomic Sci (2012)

Bottom Line: This strain, whose genome is described here, was isolated from the fecal flora of a 26-year-old woman suffering from morbid obesity.Here we describe the features of this organism, together with the complete genome sequence and annotation.The 2,101,866-bp long genome (1 chromosome but no plasmid) exhibits a G+C content of 33.9% and contains 2,041 protein-coding and 29 RNA genes, including 3 rRNA genes.

View Article: PubMed Central - PubMed

Affiliation: Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UMR CNRS 7278.

ABSTRACT
Peptoniphilus grossensis strain ph5(T) sp. nov., is the type strain of Peptoniphilus grossensis sp. nov., a new species within the Peptoniphilus genus. This strain, whose genome is described here, was isolated from the fecal flora of a 26-year-old woman suffering from morbid obesity. P. grossensis strain ph5 is a Gram-positive obligate anaerobic coccus. Here we describe the features of this organism, together with the complete genome sequence and annotation. The 2,101,866-bp long genome (1 chromosome but no plasmid) exhibits a G+C content of 33.9% and contains 2,041 protein-coding and 29 RNA genes, including 3 rRNA genes.

No MeSH data available.


Related in: MedlinePlus

Reference mass spectrum from P. grossensis strain ph5T. Spectra from 12 individual colonies were compared and a reference spectrum was generated.
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f4: Reference mass spectrum from P. grossensis strain ph5T. Spectra from 12 individual colonies were compared and a reference spectrum was generated.

Mentions: Matrix-assisted laser-desorption/ionization time-of-flight (MALDI-TOF) MS protein analysis was carried out as previously described [20]. Briefly, a pipette tip was used to pick one isolated bacterial colony from a culture agar plate and spread it as a thin film on a MTP 384 MALDI-TOF target plate (Bruker Daltonics, Germany). Twelve distinct deposits were done for strain ph5 from twelve isolated colonies. Each smear was overlaid with 2µL of matrix solution (saturated solution of alpha-cyano-4-hydroxycinnamic acid) in 50% acetonitrile, 2.5% tri-fluoracetic acid, and allowed to dry for five minutes. Measurements were performed with a Microflex spectrometer (Bruker). Spectra were recorded in the positive linear mode for the mass range of 2,000 to 20,000 Da (parameter settings: ion source 1 (ISI), 20kV; IS2, 18.5 kV; lens, 7 kV). A spectrum was obtained after 675 shots at a variable laser power. The time of acquisition was between 30 seconds and 1 minute per spot. The twelve ph5 spectra were imported into the MALDI Bio Typer software (version 2.0, Bruker) and analyzed by standard pattern matching (with default parameter settings) against the main spectra of 3,769 bacteria, including spectra from 8 validated Peptoniphilus species used as reference data, in the Bio Typer database (updated March 15th, 2012). The method of identification includes the m/z from 3,000 to 15,000 Da. For every spectrum, 100 peaks at most were taken into account and compared with the spectra in database. A score enabled the presumptive identification and discrimination of the tested species from those in a database: a score ≥ 2 with a validated species enabled the identification at the species level; a score ≥ 1.7 but < 2 enabled the identification at the genus level; and a score < 1.7 did not enable any identification. For strain ph5, the obtained score was 1.3, thus suggesting that our isolate was not a member of a known species. We incremented our database with the spectrum from strain ph5 (Figure 4).


Non contiguous-finished genome sequence and description of Peptoniphilus grossensis sp. nov.

Mishra AK, Hugon P, Robert C, Raoult D, Fournier PE - Stand Genomic Sci (2012)

Reference mass spectrum from P. grossensis strain ph5T. Spectra from 12 individual colonies were compared and a reference spectrum was generated.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3569384&req=5

f4: Reference mass spectrum from P. grossensis strain ph5T. Spectra from 12 individual colonies were compared and a reference spectrum was generated.
Mentions: Matrix-assisted laser-desorption/ionization time-of-flight (MALDI-TOF) MS protein analysis was carried out as previously described [20]. Briefly, a pipette tip was used to pick one isolated bacterial colony from a culture agar plate and spread it as a thin film on a MTP 384 MALDI-TOF target plate (Bruker Daltonics, Germany). Twelve distinct deposits were done for strain ph5 from twelve isolated colonies. Each smear was overlaid with 2µL of matrix solution (saturated solution of alpha-cyano-4-hydroxycinnamic acid) in 50% acetonitrile, 2.5% tri-fluoracetic acid, and allowed to dry for five minutes. Measurements were performed with a Microflex spectrometer (Bruker). Spectra were recorded in the positive linear mode for the mass range of 2,000 to 20,000 Da (parameter settings: ion source 1 (ISI), 20kV; IS2, 18.5 kV; lens, 7 kV). A spectrum was obtained after 675 shots at a variable laser power. The time of acquisition was between 30 seconds and 1 minute per spot. The twelve ph5 spectra were imported into the MALDI Bio Typer software (version 2.0, Bruker) and analyzed by standard pattern matching (with default parameter settings) against the main spectra of 3,769 bacteria, including spectra from 8 validated Peptoniphilus species used as reference data, in the Bio Typer database (updated March 15th, 2012). The method of identification includes the m/z from 3,000 to 15,000 Da. For every spectrum, 100 peaks at most were taken into account and compared with the spectra in database. A score enabled the presumptive identification and discrimination of the tested species from those in a database: a score ≥ 2 with a validated species enabled the identification at the species level; a score ≥ 1.7 but < 2 enabled the identification at the genus level; and a score < 1.7 did not enable any identification. For strain ph5, the obtained score was 1.3, thus suggesting that our isolate was not a member of a known species. We incremented our database with the spectrum from strain ph5 (Figure 4).

Bottom Line: This strain, whose genome is described here, was isolated from the fecal flora of a 26-year-old woman suffering from morbid obesity.Here we describe the features of this organism, together with the complete genome sequence and annotation.The 2,101,866-bp long genome (1 chromosome but no plasmid) exhibits a G+C content of 33.9% and contains 2,041 protein-coding and 29 RNA genes, including 3 rRNA genes.

View Article: PubMed Central - PubMed

Affiliation: Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, UMR CNRS 7278.

ABSTRACT
Peptoniphilus grossensis strain ph5(T) sp. nov., is the type strain of Peptoniphilus grossensis sp. nov., a new species within the Peptoniphilus genus. This strain, whose genome is described here, was isolated from the fecal flora of a 26-year-old woman suffering from morbid obesity. P. grossensis strain ph5 is a Gram-positive obligate anaerobic coccus. Here we describe the features of this organism, together with the complete genome sequence and annotation. The 2,101,866-bp long genome (1 chromosome but no plasmid) exhibits a G+C content of 33.9% and contains 2,041 protein-coding and 29 RNA genes, including 3 rRNA genes.

No MeSH data available.


Related in: MedlinePlus