>2p4wB (B:) observed residues (from ATOM records)
mgeelnrlldvlgnetrrrilflltkrpyfvselsrelgvgqkavlehlrileeaglies
rvekiprgrprkyymikkglrleilltptlfgsemyeakgvrkspeyeqakeliksqepi
nvkmrelaeflhelnerireiieekreleearilietyientmrrlaeenrqiieeifrd
iekilppgyarslkekfl