>1xltB (B:) observed residues (from ATOM records)
mkiaipkerrpgedrvaispevvkklvglgfeviveqgagvgasitddaltaagatiast
aaqalsqadvvwkvqrpmtaeegtdevalikegavlmchlgaltnrpvvealtkrkitay
amelmprisraqsmdilssqsnlagyravidgayefarafpmmmtaagtvpparvlvfgv
gvaglqaiatakrlgavvmatdvraatkeqveslggkfitefrkkqaeavlkelvktdia
ittalipgkpapvliteemvtkmkpgsviidlaveaggncplsepgkivvkhgvkivght
nvpsrvaadasplfaknllnfltphvdkdtktlvmkledetvsgtcvtrdgaivhpalt