>2a73B (B:) observed residues (from ATOM records)
vqltekrmdkvgkypkelrkccedgmrenpmrfscqrrtrfislgeackkvfldccnyit
elrrqharaldediiaeenivsrsefpeswlwnvedlkeppkngistklmniflkdsitt
weilavsmsdkkgicvadpfevtvmqdffidlrlpysvvrneqveiravlynyrqnqelk
vrvellhnpafcslattkrrhqqtvtippksslsvpyvivplktglqevevkaavyhhfi
sdgvrkslkvvpegirmnktvavrtldperlgregvqkedippadlsdqvpdtesetril
lqgtpvaqmtedavdaerlkhlivtpsgcgeqnmigmtptviavhyldeteqwekfglek
rqgalelikkgytqqlafrqpssafaafvkrapstwltayvvkvfslavnliaidsqvlc
gavkwlilekqkpdgvfqedapvihqennnekdmaltafvlislqeakdiceeqvnslpg
sitkagdfleanymnlqrsytvaiagyalaqmgrlkgpllnkflttakdknrwedpgkql
ynveatsyallallqlkdfdfvppvvrwlneqryygggygstqatfmvfqalaqyqkdap
dhqelnldvslqlpsrsskithrihwesasllrseetkenegftvtaegkgqgtlsvvtm
yhakakdqltcnkfdlkvtikpapetekrpqdakntmileictryrgdqdatmsildism
mtgfapdtddlkqlangvdryiskyeldkafsdrntliiyldkvshseddclafkvhqyf
nveliqpgavkvyayynleesctrfyhpekedgklnklcrdelcrcaeencfiqksddkv
tleerldkacepgvdyvyktrlvkvqlsndfdeyimaieqtiksgsdevqvgqqrtfisp
ikcrealkleekkhylmwglssdfwgekpnlsyiigkdtwvehwpeedecqdeenqkqcq
dlgaftesmvvfgcpn