>1g18A (A:) observed residues (from ATOM records)
qtpdrekalelavaqieksygkgsvmrlgdearqpisviptgsialdvalgigglprgrv
ieiygpessgkttvalhavanaqaaggvaafidaehaldpdyakklgvdtdsllvsqpdt
geqaleiadmlirsgaldivvidsvaalvpraelegemhvglqarlmsqalrkmtgalnn
sgttaifinqltggkalkfyasvrmdvrrvetlkdgtnavgnrtrvkvvknkclapfkqa
efdilygkgisregslidmgvdqglirksgawftyegeqlgqgkenarnflvenadvade
iekkikeklg