>6ivrB (B:) observed residues (from ATOM records)
skiifrlllnvlmsiiaiisyqwyeqlgihltvapfsllgiaiaiflgfrnsasysrfve
arnlwgtvliaertlvrqlrnilpaehdahrrivsylvafswslkhqlrktdptadlrrl
lpeervteilassmptnrilllagneigqlreagklsdityglmdnkldelahvlggcer
lattpvpfaytlilqrtvylfctllpfalvgdlhymtpfvsvfisytflswdslaeeled
pfgtaandlplnamcntiernlldmtgqhp