2024-09-19
ENA first public
ERC000050
ENA-CHECKLIST
EMBL Heidelberg
INSDC center name
public
INSDC status
ERS21059976
SRA accession
spire_mag_00999360
Submitter Id
Many fragments with little to no review of assembly other than reporting of standard assembly statistics
assembly quality
megahit 1.2.9
assembly software
default
binning parameters
metabat 2.12.1
binning software
human digestive system
broad-scale environmental context
EBI-EMG
broker name
missing: third party data
collection date
95.63
%
completeness score
checkm2 0.1.3
completeness software
9.87
%
contamination score
This sample represents a Third Party Annotation (TPA) binned metagenome assembled from the metagenomic run ERR2508896 of study ERP107921.
description
not specified
environmental medium
not provided
geographic location (country and/or sea)
missing: third party data
DD
geographic location (latitude)
missing: third party data
DD
geographic location (longitude)
metagenome-assembled genome
investigation type
human gut metagenome
isolation_source
human gut
local environmental context
human gut metagenome
metagenomic source
Phocaeicola vulgatus
organism
Several studies monitoring alterations of the community structure upon resistant starch (RS) interventions are available, although comprehensive function-based analyses are lacking. Recently, a multiomics approach based on 16S rRNA gene-sequencing, metaproteomics and metabolomics on fecal samples from individuals subjected to high and low doses of type-2 RS (RS2 48 g and 3 g/2500 kcal, respectively, daily for 2 weeks) in a cross-over intervention experiment was performed. In the present study, we did pathway-based metagenomic analyses on samples from a subset of individuals (n=12) from that study to get additional, detailed insights into the functional structure at high resolution during RS2 intervention. A mechanistic framework based on obtained results is proposed where primary degradation was governed by Firmicutes, primarily via the keystone degrader Ruminococcus bromii providing fermentation substrates and increased acetate concentrations for growth of various major butyrate-producers exhibiting the enzyme butyryl-CoA:acetate CoA-transferase. H2-scavenging sulfite reducers and acetogens concurrently increased. Augmented fermentation products lowered the pH, further favoring Firmicutes including butyrate producers at the expense of pH-sensitive gram-negative bacteria, in particular Bacteroides. Individual responses of gut microbiota were noted where seven of the 12 participants displayed all features of the outlined pattern, whereas four individuals showed mixed behavior and one subject was unresponsive. Intervention order did not affect the outcome emphasizing a constant substrate supply for maintaining specific functional communities.
project name
SAMEA1100205
sample derived from
Phocaeicola vulgatus
scientific_name
Illumina HiSeq 2000
sequencing method
multi-marker approach
taxonomic identity marker
binned metagenome: spire_mag_00999360
title