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SysPTM has large PTM sites collection from public databases and MS experiments (see statistics for detail). Comparing your own data with SysPTM, you can evaluate your data and affirm novel PTM sites . If you submit your own data to SysPTM, we will greatly appreciate it.
PTMBlast-ISA
PTMBlast-ISA
Protein Sequence must be entirely identical.
Choose Search Set
Database:
Species(Optional):
PTM type(Optional):
Enter Query Sequence and Modified Sites Information
Enter FASTA sequence(s)(Required*)
Or, upload file    
Enter protein name(s) with modified sites information(Required*)
Or, upload file