Proteomics contaminant databases

These 3 fasta files are widely used proteomics contaminants. The files are crap_gpm.fasta: the common Repository of Adventitious Proteins (cRAP) from the Global Proteome Machine (GPM) organisation. crap_ccp.fasta: Cambridge Centre for Proteomics' own cRAP fasta database. crap_maxquant.fasta.gz: MaxQuant's contaminant database. These files are extracted from the {camprotR} package and described in the cRAP databases vignette (https://cambridgecentreforproteomics.github.io/camprotR/articles/crap.html).