Chains and heterogens:
PDB Chain Sequences:
>4xx0A (A:) sytasrkhlyvdkntkvicqgftgkqgtfhsqqaleygtnlvggttpgkggkthlglpvf ntvkeakeqtgatasviyvpppfaaaaineaidaevplvvcitegipqqdmvrvkhrllr qgktrligpncpgvinpgeckigimpghihkkgrigivsrsgtltyeavhqttqvglgqs lcvgiggdpfngtdftdcleiflndpategiiligeiggnaeenaaeflkqhnsgpkskp vvsfiagltappgrrmghagaiiaggkggakekitalqsagvvvsmspaqlgttiykefe krkmllvhhhhhh
>4xx0A (A:) sytasrkhlyvdkntkvicqgftgkqgtfhsqqaleygtnlvggttpgkggkthlglpvf ntvkeakeqtgatasviyvpppfaaaaineaidaevplvvcitegipqqdmvrvkhrllr qgktrligpncpgvinpgeckigimpghihkkgrigivsrsgtltyeavhqttqvglgqs lcvgiggdpfngtdftdcleiflndpategiiligeiggnaeenaaeflkqhnsgpkskp vvsfiagltappgrrmghagaiiaggkggakekitalqsagvvvsmspaqlgttiykefe krk
>4xx0B (B:) mnlqeyqskklmsdngvkvqrffvadtanealeaakrlnakeivlkaqilaggrgkgvfs sglkggvhltkdpevvgqlakqmigynlatkqtpkegvkvnkvmvaealdisretylail mdrscngpvlvgspqggvdieevaasnpelifkeqidiiegikdsqaqrmaenlgflgpl qnqaadqikklynlflkidatqvevnpfgetpegqvvcfdakinfddnaefrqkdifamd dksenepieneaakydlkyigldgniacfvngaglamatcdiiflnggkpanfldlgggv kesqvyqafklltadpkveailvnifggivncaiiangitkacrelelkvplvvrlegtn vheaqniltnsglpitsavdledaakkavasvtkk
>4xx0B (B:) mnlqeyqskklmsdngvkvqrffvadtanealeaakrlnakeivlkaqilaggrgkgvfs sglkggvhltkdpevvgqlakqmigynlatkqtpkegvkvnkvmvaealdisretylail mdrscngpvlvgspqggvdieevaasnpelifkeqidiiegikdsqaqrmaenlgflgpl qnqaadqikklynlflkidatqvevnpfgetpegqvvcfdakinfddnaefrqkdifamd dksenepieneaakydlkyigldgniacfvngaglamatcdiiflnggkpanfldlgggv kesqvyqafklltadpkveailvnifggivncaiiangitkacrelelkvplvvrlegtn vheaqniltnsglpitsavdledaakkavasvt