Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Proteome-Level Functional Redundancy in the Human Gut Microbiome

ABSTRACT: Here, we quantify the proteome-level functional redundancy in the human gut microbiome using metaproteomics and network approaches.In particular, we used an ultra-deep metaproteomics approach based on high-pH reverse phase fractionation. The data analysis revealed high protein-level functional redundancy and high nestedness in proteomic content networks - bipartite graphs that connect taxa with their expressed functions.

INSTRUMENT(S): Orbitrap Exploris 480

ORGANISM(S): Human Gut Metagenome

TISSUE(S): Gut

SUBMITTER: Leyuan Li

LAB HEAD: Daniel Figeys

PROVIDER: PXD027297 | Pride | 2023-06-08

REPOSITORIES: Pride

ACCESS DATA

Json Xml

Similar Datasets

Differential Lysis Approach Enables Selective Extraction of Taxon-Specific Proteins for Gut Metaproteomics

Project description:A differential lysis approach was developed with different strength of lysis buffers (urea and/or sodium dodecyl sulfate) and applied on human stool samples to separate different microbial species to increase the depth of metaproteomic measurements. We showed that the lysates dominating by proteins from Gram-positive (G+) or negative bacteria (G-) can be achieved by differential lysis

2023-03-27 | PXD016787 | Pride

Free-Flow Isoelectric Focusing Based Metaproteomics Workflow Facilitates the Identification and Characterization of Human Salivary Microbiome for Lung Cancer

Project description:We developed a free-flow isoelectric focusing (FFIEF) based metaproteomics workflow to reduce the host interferences and enrich the low-abundant bacteria for better interpretation of salivary microbiome. We firstly tested the pretreatment module that could significantly reduce the host interferences by differential centrifugation and filtration. Then the FFIEF module was applied to separate the microbes and enrich the low-abundant bacteria, which showed a significant improvement in the identification efficiency of microbiome sample. Applying our method to lung cancer, we successfully identified Fusobacterium, Neisseriaceae, Actinomycetaceae, Burkholderiales, and Spirochaetia were associated with lung cancer as previous sequencing studies did, along with other 16 significantly different species. The dysregulated functions in lung cancer microbiome were also explained in details. Our workflow provides improved efficiency in identification and characterization of the salivary microbiome with great reproducibility. The ability of enriching low-abundant bacteria and functions enables in-deep analysis of previously underestimated information.

2022-11-17 | PXD026727 | Pride

Effect of berberine analogues on functional profiles of human gut microbiomes

Project description:The understanding of the effects of compounds on the gut microbiome is limited and in particular we don’t know whether structurally similar compounds have similar or distinct effects on the gut microbiome. Here we selected berberine (BBR), an isoquinoline quaternary alkaloid, and sixteen structural analogues, and evaluated their effects on in vitro cultured individual gut microbiomes. The responses of the individual microbiomes were evaluated by metaproteomic profiles and by assessing butyrate production. BBR and eight analogues led to changes in proteins involved in microbial defense and stress responses, and enrichment of proteins from Verrumicrobia, Proteobacteria and Bacteroides phyla. It also led to a decrease in proteins from the Firmicutes phylum and its Clostridiales order which correlated to decrease proteins involved in the butyrate production pathway and butyrate concentration. Three of the compounds, Sanguinarine, Chelerythrine and Ethoxysanguinarine activated bacterial protective mechanisms, enriched Proteobacteria, increased opacity proteins and markedly reduced butyrate production. Dihydroberberine had a similar function to BBR in enriching the Akkermansia genus. In addition, it showed less overall adverse impacts on the functionality of the gut microbiome, including a better maintenance of the butyrate level. Our study shows that ex vivo microbiome assay can assess differential regulating effects of compounds with subtle differences and reveals that compound analogues can have distinct effects on the microbiome.

2020-07-21 | PXD015934 | Pride

In vitro - in vivo correlation of gut microbiome response to metformin

Project description:The ability of MiPro culturing model to recapitulate in vivo drug responses was evaluated through taxonomic and functional analysis of murine gut microbiome following metformin treatment.

2019-08-16 | PXD010135 | Pride

Rapid Assay of Individual Microbiome responses to drugs part1

Project description:We developed an approach named Rapid Assay of Individual Microbiome (RapidAIM) to screen xenobiotics against individual microbiomes, and conducted a proof-of-concept (POC) study on the use of RapidAIM. We tested 43 compounds against five individual microbiomes. The individual microbiomes are cultured in 96-well plates for 24 hours and the samples are then analyzed using a metaproteomics-based analytical approach to gain functional insight into the individual microbiomes responses following drug treatments.The tested compounds significantly affected overall microbiome abundance, microbiome composition and functional pathways at multiple taxonomic levels. The microbiome responses to berberine, metformin, diclofenac, fructooligosaccharide and most antibiotics were consistent among most individual microbiomes. Interestingly, most of our tested NSAIDs, statins, and histamine-2 blockers induced individually distinct responses. Our workflow offers an effective solution to systematically study the effects of many different compounds on individual microbiomes.

2020-05-26 | PXD012724 | Pride

Evaluation of different protein extraction protocols to study human gut microbiota.

Project description:The link between the gut microbiota and the human physiological state has been demonstrated in recent years. High gut microbiota diversity has been linked to many beneficial functions necessary or human health, while dysbiosis has been correlated to different pathological states. In this context, the study of the gut microbiota results of high relevance been necessary the development of different techniques capable of characterizing this complex ecosystem. Metaproteomics has been proved useful in the characterization of complex protein samples becoming a suitable tool for the study of these microbial communities. However, due to the complexity of these samples, protein extraction protocols may affect metaproteomics results. In this context, we evaluated stool sample processing (SSP) and microbial cell disruption, assessing the impact of different protocol modifications in the number of peptides and proteins identified. We compared different stool processing conditions and microbial cell disruption methods in terms of protein and peptide identifications and taxonomic profiles.

2021-07-06 | PXD025659 | Pride

Pediatric IBD MLI metaproteomics

Project description:Mucosal-luminal interface (MLI) samples were collected from a cohort of children with new-onset IBD and microbial cells were harvested and processed for metaproteomic analysis. Deep metaproteomics data analysis was then performed for better understanding the MLI microbiota functions in the development of pediatric IBD.

2018-08-03 | PXD007819 | Pride

Hunam gut microbiome metaproteomcis in LP1

Project description:The samples of gut micorbiota were collected in "Lunar Palace 365" experiment. The "Lunar Palace 365" experiment was a 370-day, multicrew, closed experiment carried out in a ground-based experimental BLSS platform named Lunar Palace 1. Deep metaproteomics data analysis was then performed for better understanding the role of gut micorbiota in mood regulation.

2023-05-10 | PXD027661 | Pride

Metaproteomics analysis of microbial structure on the surface of Indian Ocean

Project description:In this study we characterize microbial community features on the surface of Indian Ocean. 11 samples were collected from Indian Ocean and subjected for quantitative metaproteomics analysis for taxonomic and functional analysis. Our results suggested that metabolic tuning at metaproteomics levels enabled microbial community to sustain stable when subjected to environmental perturbations in the oligotrophic ocean.

2023-05-10 | PXD016285 | Pride

Activity-Based Metaproteomics Driven Discovery and Enzymological Characterization of Novel α-Galactosidases in the Gut Microbiome

Project description:The gut microbiota is an essential contributor to human health and disease and offers an extensive resource of enzymes. Although functional metagenomics methods could predict a correlation between enzyme abundance and functional activity, many enzymes in the microbiome still remain uncharacterized. To discover the differing activities between similar annotated proteins in microbiome, approaches capable of detecting biochemical activity with identification of responsible microbes and enzymes are needed. α-Galactosidases (AGALs) are abundant in the host gut microbiota for hydrolysis of galactooligosaccharides, galactose-containing polysaccharides and glycoconjugates, and have multiple biotechnological applications with increasing demand of global AGAL market, such as food ingredients, animal feed, and biomedical sectors. However, many gut microbial AGALs still lack functional biochemical identification, which limits their usage in industrial and therapeutic applications.

2024-04-03 | PXD046454 | Pride

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data