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ASM15438v1

Organism name:
Faecalibacterium prausnitzii M21/2
Infraspecific name:
Strain: M21/2
BioSample:
SAMN02299416
Submitter:
Washington University Genome Sequencing Center
Date:
2007/09/12
Assembly level:
Scaffold
Genome representation:
full
GenBank Assembly ID:
GCA_000154385.1 (latest)
RefSeq Assembly ID:
GCF_000154385.1 (latest)
RefSeq Assembly and GenBank Assembly Identical:
yes
WGS Project:
ABED02

IDs: 179738 [UID] 179718 [GenBank] 179738 [RefSeq]

See Genome Information for Faecalibacterium prausnitzii

There are 5 assemblies for this organism

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History (Show revision history)

Comment

Faecalibacterium prausnitzii M21/2 (GenBank Accession Number for 16S rDNA gene: AY305307) is a member of the division Firmicutes. In one comprehensive 16S rDNA sequence-based enumeration of the colonic microbiota of three healthy adult humans, it represents, on average, 3.804% ... of all 16S rDNA sequences and 7.490% of the sequences in its division (Eckburg et. al. (2005)). The sequenced strain was obtained from the laboratory of Prof. Harry Flint, Rowett Research Institute, Aberdeen, Scotland, UK (H.Flint@rowett.ac.uk).

We have collected 8.4X coverage in plasmid end reads and 454 reads. We will be performing one round of automated sequence improvement (pre-finishing).

Sequencing/Assembly: The genomic DNA was purified from liquid culture derived from a single bacterial colony. A hybrid sequencing strategy that utilized reads from both 454 GS-20 and ABI 3730xl sequencers was devised and implemented to generate the draft genome sequences. 454 reads were assembled using Newbler (454 Life Sciences) into 454 de novo contigs. These de novo contigs were converted in silico to 800 base paired reads ('superreads') with 400 base overlaps with neighboring superreads. Finally, PCAP (Huang, et al, Genome Research, 13:2164, (2003)) was used to assemble the super-reads and the conventional 3730xl capillary reads.

This sequenced strain is part of a comprehensive, sequence-based survey of members of the normal human gut microbiota. A joint effort of the WU-GSC and the Center for Genome Sciences at Washington University School of Medicine, the purpose of this survey is to provide the general scientific community with a broad view of the gene content of 100 representatives of the major divisions represented in the intestine's microbial community. This information should provide a frame of reference for analyzing metagenomic studies of the human gut microbiome. Further details of this effort are described in a white paper entitled "ExtendingOur View of Self: the Human Gut Microbiome Initiative (HGMI)" (http://www.genome.gov/Pages/Research/Sequencing/SeqProposals/HGMISeq.pdf). These studies are supported by National Human Genome Research Institute.

Coding sequences were predicted using GeneMark v3.3 and Glimmer2 v2.13. Intergenic regions not spanned by GeneMark and Glimmer2 were blasted against NCBI's non-redundant (NR) database and predictions generated based on protein alignments. RNA genes were determined using tRNAscan-SE 1.23 or Rfam v8.0. Gene names are generated at the contig level and may not necessarily reflect any known order or orientation between contigs.These studies are supported by National Human Genome Research Institute.

For answers to your questions regarding this assembly or project, or any other GSC genome project, please visit our Genome Groups web page (http://genome.wustl.edu/genome_group_index.cgi) and email the designated contact person.

Annotation was added to the contigs in October 2007, and the CDS comments were updated in January 2008.

This is a reference genome for the Human Microbiome Project. This project is co-owned with the Human Microbiome Project DACC.
Product names were updated in August 2012.
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Global statistics

Total sequence length3,127,383
Total assembly gap length400
Gaps between scaffolds0
Number of scaffolds25
Scaffold N50296,445
Number of contigs29
Contig N50296,445
Total number of chromosomes and plasmids0

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Global assembly definition

Download the full sequence report
The primary assembly unit does not have any assembled chromosomes or linkage groups.
Please download the full sequence report for information on the scaffolds.

Assembly statistics

MoleculeTotal
Length
Scaffold
Count
Ungapped
Length
Scaffold
N50
Spanned
Gaps
Unspanned
Gaps
unplaced3,127,383253,126,983296,44540
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