The RESID Database is a comprehensive collection of annotations and structures 
for protein pre-, co- and post-translational modifications including 
amino-terminal, carboxyl-terminal and peptide chain cross-link modifications. 
The RESID Database includes: systematic and alternate names, atomic formulas and 
masses, enzyme activities generating the modifications, keywords, literature 
citations, Gene Ontology cross-references, Protein Information Resource (PIR) 
and SWISS-PROT protein sequence database feature table annotations, structure 
diagrams and molecular models. This database is freely accessible on the 
Internet through the European Bioinformatics Institute at 
http://srs.ebi.ac.uk/srs6bin/cgi-bin/wgetz?-page+LibInfo+-lib+RESID, through the 
National Cancer Institute - Frederick Advanced Biomedical Computing Center at 
http://www.ncifcrf.gov/RESID, or through the Protein Information Resource at 
http://pir.georgetown.edu/pirwww/dbinfo/resid.html.