>1xiuB (B:) observed residues (from ATOM records)
nndmpveqileaelavdpkidtyidaqkdpvtnicqaadkqlftlvewakriphftelpl
edqvillragwnelliagfshrsimakdgillatglhvhrssahqagvgtifdrvltelv
akmrdmkmdktelgclravvlfnpdakgltavqeveqlrekvyasleeytksrypeepgr
faklllrlpalrsiglkclehlfffkligdqpidtflmemlenp