HHrep is a tool for the de novo identification
of repeats in protein sequences based on the pairwise comparison of profile hidden Markov models (HMMs).
PolyQ database is a collection of sequences of all human proteins containing runs of seven or more glutamine residues and their annotated sequences with domain information. PolyQ can be interrogated such that the sequence context of polyglutamine repeats in disease and non-disease associated proteins can be investigated.
REPPER (REPeats and their PERiodicities) is a tool for detecting and analysing regions in protein sequences or sequence alignements that have short gapless repeats.