Chains and heterogens:
PDB Chain Sequences:
>1k7fA (A:) meryenlfaqlndrregafvpfvtlgdpgieqslkiidtlidagadalelgvpfsdplad gptiqnanlrafaagvtpaqcfemlalirekhptipigllmyanlvfnngidafyarceq vgvdsvlvadvpveesapfrqaalrhniapificppnadddllrqvasygrgytyllsrs gvtgaenrgalplhhlieklkeyhaapalqgfgisspeqvsaavragaagaisgsaivki ieknlaspkqmlaelrsfvsamkaasra
>1k7fA (A:) meryenlfaqlndrregafvpfvtlgdpgieqslkiidtlidagadalelgvpfsdplad gptiqnanlrafaagvtpaqcfemlalirekhptipigllmyanlvfnngidafyarceq vgvdsvlvadvpveesapfrqaalrhniapificppnadddllrqvasygrgytyllslh hlieklkeyhaapalqgfgisspeqvsaavragaagaisgsaivkiieknlaspkqmlae lrsfvsamkaasr
>1k7fB (B:) ttllnpyfgefggmyvpqilmpalnqleeafvsaqkdpefqaqfadllknyagrptaltk cqnitagtrttlylkredllhggahktnqvlgqallakrmgkseiiaetgagqhgvasal asallglkcriymgakdverqspnvfrmrlmgaevipvhsgsatlkdacnealrdwsgsy etahymlgtaagphpyptivrefqrmigeetkaqildkegrlpdaviacvgggsnaigmf adfindtsvgligvepgghgietgehgaplkhgrvgiyfgmkapmmqtadgqieesysis agldfpsvgpqhaylnsigradyvsitddealeafktlcrhegiipalesshalahalkm mreqpekeqllvvnlsgrgdkdiftvhdilkargei
>1k7fB (B:) ttllnpyfgefggmyvpqilmpalnqleeafvsaqkdpefqaqfadllknyagrptaltk cqnitagtrttlylkredllhggahktnqvlgqallakrmgkseiiaetgagqhgvasal asallglkcriymgakdverqspnvfrmrlmgaevipvhsgsatlkdacnealrdwsgsy etahymlgtaagphpyptivrefqrmigeetkaqildkegrlpdaviacvgggsnaigmf adfindtsvgligvepgghrvgiyfgmkapmmqtadgqieesysisagldfpsvgpqhay lnsigradyvsitddealeafktlcrhegiipalesshalahalkmmreqpekeqllvvn lsgrgdkdiftvhdilkarg