ProBias: a web-server for the identification of user-specified types of compositionally biased segments in protein sequences

Sequence name  (optional):
Paste a raw amino acid sequence  (maximum length: 1000).

OR upload a sequence in FASTA format:

SPROT frequencies

PDB frequencies

Estimate frequencies

Estimate linkage distance

Linkage distance :  

P-value cut-off:   
Pre-selected sub-alphabets

User-specified sub-alphabets. Number of sub-alphabets:


(C) 2008 Igor B. Kuznetsov      Web design: Run Li