Chains and heterogens:
PDB Chain Sequences:
>1f2nA (A:) arkgkktnsnqgqqgkrksrrprgrsaepqlqrapvaqasrisgtvpgplssntwplhsv efladfkrsstsadattydcvpfnlprvwslarcysmwkptrwdvvylpevsatvagsie mcflydyadtiprytgkmsrtagfvtssvwygaegchllsggsarnavvasmdcsrvgwk rvtssipssvdpnvvntilparlavrssikptvsdtpgklyviasmvlrdpvdptlnt
>1f2nA (A:) lssntwplhsvefladfkrsstsadattydcvpfnlprvwslarcysmwkptrwdvvylp evsatvagsiemcflydyadtiprytgkmsrtagfvtssvwygaegchllsggsarnavv asmdcsrvgwkrvtssipssvdpnvvntilparlavrssikptvsdtpgklyviasmvlr dpvdptlnt
>1f2nB (B:) arkgkktnsnqgqqgkrksrrprgrsaepqlqrapvaqasrisgtvpgplssntwplhsv efladfkrsstsadattydcvpfnlprvwslarcysmwkptrwdvvylpevsatvagsie mcflydyadtiprytgkmsrtagfvtssvwygaegchllsggsarnavvasmdcsrvgwk rvtssipssvdpnvvntilparlavrssikptvsdtpgklyviasmvlrdpvdptlnt
>1f2nB (B:) lssntwplhsvefladfkrsstsadattydcvpfnlprvwslarcysmwkptrwdvvylp evsatvagsiemcflydyadtiprytgkmsrtagfvtssvwygaegchllsggsarnavv asmdcsrvgwkrvtssipssvdpnvvntilparlavrssikptvsdtpgklyviasmvlr dpvdptlnt
>1f2nC (C:) arkgkktnsnqgqqgkrksrrprgrsaepqlqrapvaqasrisgtvpgplssntwplhsv efladfkrsstsadattydcvpfnlprvwslarcysmwkptrwdvvylpevsatvagsie mcflydyadtiprytgkmsrtagfvtssvwygaegchllsggsarnavvasmdcsrvgwk rvtssipssvdpnvvntilparlavrssikptvsdtpgklyviasmvlrdpvdptlnt
>1f2nC (C:) aepqlqrapvaqasrisgtvpgplssntwplhsvefladfkrsstsadattydcvpfnlp rvwslarcysmwkptrwdvvylpevsatvagsiemcflydyadtiprytgkmsrtagfvt ssvwygaegchllsggsarnavvasmdcsrvgwkrvtssipssvdpnvvntilparlavr ssikptvsdtpgklyviasmvlrdpvdptlnt