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Prokaryotes

Draft Genome Sequence of a Helicobacter pylori Strain Isolated from a Patient with Diffuse Gastritis from a Region of High Cancer Risk in Colombia

Andrés J. Gutiérrez-Escobar, Martin Bayona Rojas, Carlos Barragán Vidal, Clara Esperanza Trujillo, María Mercedes Bravo
Andrés J. Gutiérrez-Escobar
aGrupo de Investigaciones Biomédicas y Genética Humana Aplicada (GIBGA), Universidad de Ciencias Aplicadas y Ambientales (UDCA), Bogotá, Colombia
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Martin Bayona Rojas
aGrupo de Investigaciones Biomédicas y Genética Humana Aplicada (GIBGA), Universidad de Ciencias Aplicadas y Ambientales (UDCA), Bogotá, Colombia
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Carlos Barragán Vidal
aGrupo de Investigaciones Biomédicas y Genética Humana Aplicada (GIBGA), Universidad de Ciencias Aplicadas y Ambientales (UDCA), Bogotá, Colombia
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Clara Esperanza Trujillo
bGrupo de Investigación en Cáncer y Agentes Infecciosos, Instituto Nacional de Cancerología, Bogotá, Colombia
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María Mercedes Bravo
bGrupo de Investigación en Cáncer y Agentes Infecciosos, Instituto Nacional de Cancerología, Bogotá, Colombia
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DOI: 10.1128/genomeA.00244-15
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ABSTRACT

The draft genome sequence of one Colombian Helicobacter pylori strain is presented. This strain was isolated from a patient with diffuse gastritis from Tibaná, Boyacá, a region with high gastric cancer risk.

GENOME ANNOUNCEMENT

Helicobacter pylori is a Gram-negative microaerophilic bacterium. It has been estimated that it colonizes half of the human population (1, 2). The prevalence of the infection correlates with the socioeconomic status of the populations studied, more frequently affecting developing rather than developed countries (3). The infection is associated with the development of chronic gastritis, gastric ulcer, and stomach cancer (4), although in most cases the infection persists in the gastric mucosa without affecting the individual's health (5). In this communication, we present the genome sequence of the strain Col2025. This strain was isolated from a 36-year-old man diagnosed with diffuse antral gastritis from Tibaná, Boyacá, a region with high gastric cancer risk in Colombia (6). Interestingly, neither CagA phosphorylation nor interleukin 8 (IL-8) secretion was detected when the strain Col2025 was cultured with AGS cells.

To obtain a genome sequence, 1 µg of DNA was fragmented by Covaris, and the fragments were repaired by attaching an A to the 3′ end. Illumina adaptors were ligated to the fragments and selected for sizes between 400 and 500 bp. The size-selected fragments were amplified by PCR and the final products validated in an Agilent Bioanalyzer. The short reads were assembled using SOAPdenovo (7). Finally, the sequences were annotated in GenBank using the NCBI Prokaryotic Genomes Automatic Annotation Pipeline (PGAAP) according to the submission guidelines (http://www.ncbi.nlm.nih.gov/genbank/genomesubmit.html). Overall, this whole-genome shotgun sequencing revealed the following data: scaffolds, 54; contigs, 73; N50, 60,455; L50, 9; genome size, 1.64; GC content, 38.9%; proteins, 1,451; rRNAs, 3; tRNAs, 36; genes, 1,543; pseudogenes, 52. This genome and others sequenced using strains isolated in Colombia (8, 9) will be the basis for evolutionary computational studies.

Nucleotide sequence accession number.This whole-genome shotgun project has been deposited in DDBJ/ENA/GenBank under the accession no. JOKW00000000.

ACKNOWLEDGMENT

This work was supported by an internal grant from the Universidad de Ciencias Aplicadas y Ambientales (UDCA).

FOOTNOTES

    • Received 20 February 2015.
    • Accepted 23 February 2015.
    • Published 9 April 2015.
  • Copyright © 2015 Gutiérrez-Escobar et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 Unported license.

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Draft Genome Sequence of a Helicobacter pylori Strain Isolated from a Patient with Diffuse Gastritis from a Region of High Cancer Risk in Colombia
Andrés J. Gutiérrez-Escobar, Martin Bayona Rojas, Carlos Barragán Vidal, Clara Esperanza Trujillo, María Mercedes Bravo
Genome Announcements Apr 2015, 3 (2) e00244-15; DOI: 10.1128/genomeA.00244-15

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Draft Genome Sequence of a Helicobacter pylori Strain Isolated from a Patient with Diffuse Gastritis from a Region of High Cancer Risk in Colombia
Andrés J. Gutiérrez-Escobar, Martin Bayona Rojas, Carlos Barragán Vidal, Clara Esperanza Trujillo, María Mercedes Bravo
Genome Announcements Apr 2015, 3 (2) e00244-15; DOI: 10.1128/genomeA.00244-15
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