Chains and heterogens:
PDB Chain Sequences:
>2ccrA (A:) ahrdsgtaksglyvekvsglrkdfikgvdvssiialeesgvafynesgkkqdifktlkea gvnyvrvriwndpydangngygggnndlekaiqigkratangmklladfhysdfwadpak qkapkawanlnfedkktalyqytkqslkamkaagidigmvqvgnetngglagetdwakms qlfnagsqavretdsnilvalhftnpetsgryawiaetlhrhhvdydvfassyypfwhgt lknltsvltsvadtygkkvmvaetsytytaedgdghgntapkngqtlnnpvtvqgqanav rdviqavsdvgeagigvfywepawipvgpahrleknkalwetygsgwatsyaaeydpeda gkwfggsavdnqalfdfkgrplpslhvfqyvdtgtpfkn
>2ccrA (A:) glyvekvsglrkdfikgvdvssiialeesgvafynesgkkqdifktlkeagvnyvrvriw ndpydangngygggnndlekaiqigkratangmklladfhysdfwadpakqkapkawanl nfedkktalyqytkqslkamkaagidigmvqvgnetngglagetdwakmsqlfnagsqav retdsnilvalhftnpetsgryawiaetlhrhhvdydvfassyypfwhgtlknltsvlts vadtygkkvmvaetsytytaedgdghgntapkngqtlnnpvtvqgqanavrdviqavsdv geagigvfywepawipvgpahrleknkalwetygsgwatsyaaeydpedagkwfggsavd nqalfdfkgrplpslhvfqyvdtgtpf
>2ccrB (B:) ahrdsgtaksglyvekvsglrkdfikgvdvssiialeesgvafynesgkkqdifktlkea gvnyvrvriwndpydangngygggnndlekaiqigkratangmklladfhysdfwadpak qkapkawanlnfedkktalyqytkqslkamkaagidigmvqvgnetngglagetdwakms qlfnagsqavretdsnilvalhftnpetsgryawiaetlhrhhvdydvfassyypfwhgt lknltsvltsvadtygkkvmvaetsytytaedgdghgntapkngqtlnnpvtvqgqanav rdviqavsdvgeagigvfywepawipvgpahrleknkalwetygsgwatsyaaeydpeda gkwfggsavdnqalfdfkgrplpslhvfqyvdtgtpfkn
>2ccrB (B:) glyvekvsglrkdfikgvdvssiialeesgvafynesgkkqdifktlkeagvnyvrvriw ndpydangngygggnndlekaiqigkratangmklladfhysdfwadpakqkapkawanl nfedkktalyqytkqslkamkaagidigmvqvgnetngglagetdwakmsqlfnagsqav retdsnilvalhftnpetsgryawiaetlhrhhvdydvfassyypfwhgtlknltsvlts vadtygkkvmvaetsytytaedgdghgntapkngqtlnnpvtvqgqanavrdviqavsdv geagigvfywepawipvgpahrleknkalwetygsgwatsyaaeydpedagkwfggsavd nqalfdfkgrplpslhvfqyvdtgtpfk