>2frvS (S:) observed residues (from ATOM records)
kkrpsvvylhnaectgcsesvlrtvdpyvdelildvismdyhetlmagaghaveealhea
ikgdfvcvieggipmgdggywgkvggrnmydicaevapkakaviaigtcatyggvqaakp
nptgtvgvnealgklgvkainiagcppnpmnfvgtvvhlltkgmpeldkqgrpvmffget
vhdncprlkhfeagefatsfgspeakkgyclyelgckgpdtynncpkqlfnqvnwpvqag
hpciacsepnfwdlyspfysa