>3s97A (A:) observed residues (from ATOM records)
igwsytgalnqknwgkkyptcnspkqspinidedltqvnvnlkklkfqgwdktslentfi
hntgktveinltndyrvsggvsemvfkaskitfhwgkcnmssdgsehslegqkfplemqi
ycfdadrfssfeeavkgkgklralsilfevgteenldfkaiidgvesvsrfgkqaaldpf
illnllpnstdkyyiyngsltsppctdtvdwivfkdtvsisesqlavfcevltmqqsgyv
mlmdylqnnfreqqykfsrqvfssyt