towards unbiased label-free absolute protein quantification
by predicting peptide quantitative factors

View project on GitHub


LFAQ is a novel algorithm for label-free absolute protein quantification, which can correct the biased MS intensities using the predicted peptide quantitative factors for all identified peptides.


All the source codes of LFAQ can be freely downloaded here, and the LFAQ release with user-friendly interfaces can be downloaded here.


To assist users to properly use our software, we have written a detailed user guide.

Support or Contact

Having trouble with LFAQ? Please do not hesitate to contact us and we’ll help you sort it out.