Chains and heterogens:
PDB Chain Sequences:
>1kfcA (A:) meryenlfaqlndrregafvpfvtlgdpgieqslkiidtlidagadalelgvpfsdplad gptiqnanlrafaagvtpaqcfemlaiirekhptipigllmyanlvfnngidafyarceq vgvdsvlvadvpveesapfrqaalrhniapificppnadddllrqvasygrgytyllsrs gvvgaenrgalplhhlieklkeyhaapalqgfgisspeqvsaavragaagaisgsaivki ieknlaspkqmlaelrsfvsamkaasra
>1kfcA (A:) meryenlfaqlndrregafvpfvtlgdpgieqslkiidtlidagadalelgvpfsdplad gptiqnanlrafaagvtpaqcfemlaiirekhptipigllmyanlvfnngidafyarceq vgvdsvlvadvpveesapfrqaalrhniapificppnadddllrqvasygrgytyllslh hlieklkeyhaapalqgfgisspeqvsaavragaagaisgsaivkiieknlaspkqmlae lrsfvsamkaasra
>1kfcB (B:) mttllnpyfgefggmyvpqilmpalnqleeafvsaqkdpefqaqfadllknyagrptalt kcqnitagtrttlylkredllhggahktnqvlgqallakrmgkseiiaetgagqhgvasa lasallglkcriymgakdverqspnvfrmrlmgaevipvhsgsatlkdacnealrdwsgs yetahymlgtaagphpyptivrefqrmigeetkaqildkegrlpdaviacvgggsnaigm fadfindtsvgligvepgghgietgehgaplkhgrvgiyfgmkapmmqtadgqieesysi sagldfpsvgpqhaylnsigradyvsitddealeafktlcrhegiipalesshalahalk mmreqpekeqllvvnlsgrgdkdiftvhdilkargei
>1kfcB (B:) ttllnpyfgefggmyvpqilmpalnqleeafvsaqkdpefqaqfadllknyagrptaltk cqnitagtrttlylkredllhggahktnqvlgqallakrmgkseiiaetgagqhgvasal asallglkcriymgakdverqspnvfrmrlmgaevipvhsgsatlkdacnealrdwsgsy etahymlgtaagphpyptivrefqrmigeetkaqildkegrlpdaviacvgggsnaigmf adfindtsvgligvepgghgietgehgaplkhgrvgiyfgmkapmmqtadgqieesysis agldfpsvgpqhaylnsigradyvsitddealeafktlcrhegiipalesshalahalkm mreqpekeqllvvnlsgrgdkdiftvhdilka