>1b3kA (A:) observed residues (from ATOM records)
yvahlasdfgvrvfqqvaqaskdrnvvfspygvasvlamlqlttggetqqqiqaamgfki
ddkgmapalrhlykelmgpwnkdeisttdaifvqrdlklvqgfmphffrlfrstvkqvdf
severarfiindwvkthtkgmishllgtgavdqltrlvlvnalyfngqwktpfpdssthr
rlfhksdgstvsvpmmaqtnkfnytefttpdghyydilelpyhgdtlsmfiaapyekevp
lsaltnilsaqlishwkgnmtrlprllvlpkfsletevdlrkplenlgmtdmfrqfqadf
tslsdqeplhvalalqkvkievnesgtvassstavivsarmapeeiiidrpflfvvrhnp
tgtvlfmgqvmep