>1z52A (A:) observed residues (from ATOM records)
pvypdqlrlfslgqgvcgdkyrpvnreeaqsvksnivgmmgqwqisglangwvimgpgyn
geikpgtasntwcyptnpvtgeiptlsaldipdgdevdvqwrlvhdsanfikptsylahy
lgyawvggnhsqyvgedmdvtrdgdgwvirgnndggcdgyrcgdktaikvsnfaynldpd
sfkhgdvtqsdrqlvktvvgwavndsdtpqsgydvtlrydtatnwsktntyglsekvttk
nkfkwplvgetelsieiaanqswasqnggstttslsqsvrptvparskipvkielykadi
sypyefkadvsydltlsgflrwggnawythpdnrpnwnhtfvigpykdkassiryqwdkr
yipgevkwwdlnwtiqqnglstmqnnlarvlrpvragitgdfsaesqfagnieigapvpl
aglrleipldaqelsglgfnnvslsvtpaan