Chains and heterogens:
PDB Chain Sequences:
>1s3tA (A:) mhlnpaekeklqiflaselllrrkarglklnypeavaiitsfimegardgktvamlmeeg khvltrddvmegvpemiddiqaeatfpdgtklvtvhnpis
>1s3tB (B:) msnnnyivpgeyrvaegeieinagrekttirvsntgdrpiqvgshihfvevnkellfdra egigrrlnipsgtaarfepgeemeveltelggnrevfgisdltngsvdnkelilqrakel gykgve
>1s3tB (B:) nyivpgeyrvaegeieinagrekttirvsntgdrpiqvgshihfvevnkellfdraegig rrlnipsgtaarfepgeemeveltelggnrevfgisdltngsvdnkelilqrakelgykg ve
>1s3tC (C:) mkinrqqyaesygptvgdevrladtdlwievekdyttygdevnfgggkvlregmgengty trtenvldllltnalildytgiykadigvkdgyivgigkggnpdimdgvtpnmivgtate viaaegkivtaggidthvhfinpdqvdvalangittlfgggtgpaegskattvtpgpwni ekmlksteglpinvgilgkghgssiapimeqidagaaglkihedwgatpasidrsltvad eadvqvaihsdtlneagfledtlraingrvihsfhvegaggghapdimamaghpnvlpss tnptrpftvntidehldmlmvchhlkqnipedvafadsrirpetiaaedilhdlgiismm stdalamgragemvlrtwqtadkmkkqrgplaeekngsdnfrlkryvskytinpaiaqgi ahevgsieegkfadlvlwepkffgvkadrvikggiiayaqigdpsasiptpqpvmgrrmy gtvgdlihdtnitfmskssiqqgvpaklglkrrigtvkncrnigkkdmkwndvttdidin petyevkvdgevltcepvkelpmaqryflf