A User Guide to Validation, Annotation, and Evaluation of N-Terminome Datasets with MANTI

Abstract

A large variety of enrichment procedures for protein N-termini have been developed to trace protease activity and determine precise cleavage sites, as well as other N-terminal protein modifications. Typically, enriched N-terminal peptides are identified by tandem mass spectrometry using standard database search engines, in many cases the popular MaxQuant software package. MaxQuant Advanced N-termini Interpreter (MANTI) is a software package that helps to validate, annotate, and visualize peptide identifications in N-termini datasets in a rapid and straightforward manner. Usage of MANTI and especially its graphical interface Yoğurtlu MANTI in detail are described to enable users to take full advantage of the software package and the multitude of options it has to offer.

Keywords: Analysis; Bioinformatics; MANTI; N-termini; N-terminomics; Positional proteomics; Proteolysis.