>3ftpB (B:) observed residues (from ATOM records)
dktldkqvaivtgasrgigraialelarrgamvigtatteagaegigaafkqaglegrga
vlnvndatavdalvestlkefgalnvlvnnagitqdqlamrmkddewdavidtnlkavfr
lsravlrpmmkarggrivnitsvvgsagnpgqvnyaaakagvagmtralareigsrgitv
ncvapgfidtdmtkglpqeqqtalktqiplgrlgspediahavaflaspqagyitgttlh
vnggmfms