Query your PTM type in a desired regular expression amino acid sequence. Useful to find PTMs residing in specific sequence motifs or discover co-occurrence or interplay between two PTM types. In addition, PTMs can be searched that map to specific protein domains or active sites. For instance:
LS(ph)M Phosphorylated Ser after Leu, before Met? K(ac&ub) Lys both acetylated and ubiquitinated? T(nt)M(mo) Thr cleavage followed by Met oxidation?
Input a sequence with (or without) specified PTMs and protein BLAST against Plant PTM Viewer data.
In the resulting alignments, PTMs will be displayed and aligned PTMs can be tracked down across species and within protein families. This can reveal PTM sites conserved in protein families within or across species.
PTM BLAST of protein sequences, or part thereof, is an option available on each protein overview.