>2xbyA (A:) SEQRES residues ivggqeckdgecpwqallineenegfcggtilsefyiltaahclyqakrfkvrvgdrnte qeeggeavhevevvikhnrftketydfdiavlrlktpitfrmnvapaclperdwaestlm tqktgivsgfgrthekgrqstrlkmlevpyvdrnscklsssfiitqnmfcagydtkqeda cqgdsggphvtrfkdtyfvtgivswgegcarkgkygiytkvtaflkwidrsmktrglpka k