>1xnpB (B:) SEQRES residues mgeelnrlldvlgnetrrrilflltkrpyfvselsrelgvgqkavlehlrileeaglies rvekiprgrprkyymikkglrleilltptlfgsemyeakgvrkspeyeqakeliksqepi nvkmrelaeflhelnerireiieekreleearilietyientmrrlaeenrqiieeifrd iekilppgyarslkekflnini