LFQ-Analyst

LFQ-Analyst performs statistical analysis and visualization of label-free quantitative (LFQ) proteomics datasets preprocessed with MaxQuant.


Key Features:

  • Differential expression analysis: Performs statistical tests to identify proteins with significant abundance changes across biological conditions.
  • Visualization capabilities: Produces publication-quality graphics and tables for label-free quantitative (LFQ) datasets.
  • User-analytic features: Provides statistical and exploratory analyses for interpretation of protein expression patterns.
  • Integration with MaxQuant: Accepts and uses MaxQuant-preprocessed output as input for downstream LFQ analysis.

Scientific Applications:

  • Global protein quantification: Supports comprehensive, comparative quantification of proteins across samples and conditions.
  • Relative LFQ using precursor signal intensities: Handles relative label-free quantification (LFQ) based on precursor signal intensities.
  • Biomarker discovery: Facilitates identification of candidate protein biomarkers by differential abundance analysis.
  • Post-translational modification studies: Assists exploration of protein-level changes relevant to post-translational modifications.

Methodology:

Accepts MaxQuant-preprocessed LFQ data and performs statistical differential expression analysis, generation of graphics and tables, and exploratory statistical analyses using the provided MaxQuant outputs.

Topics

Details

License:
GPL-3.0
Tool Type:
command-line tool
Programming Languages:
R
Added:
1/9/2020
Last Updated:
12/22/2020

Operations

Publications

Shah AD, Goode RJA, Huang C, Powell DR, Schittenhelm RB. LFQ-Analyst: An Easy-To-Use Interactive Web Platform To Analyze and Visualize Label-Free Proteomics Data Preprocessed with MaxQuant. Journal of Proteome Research. 2019;19(1):204-211. doi:10.1021/acs.jproteome.9b00496. PMID:31657565.

Documentation

Links