Chains and heterogens:
PDB Chain Sequences:
>2h21A (A:) slspavqtfwkwlqeegvitaktpvkasvvteglglvalkdisrndvilqvpkrlwinpd avaaseigrvcselkpwlsvilflirersredsvwkhyfgilpqetdstiywseeelqel qgsqllkttvsvkeyvkneclkleqeiilpnkrlfpdpvtlddffwafgilrsrafsrlr nenlvvvpmadlinhsagvttedhayevkgaaglfswdylfslksplsvkageqvyiqyd lnksnaelaldygfiepnenrhaytltleisesdpffddkldvaesngfaqtayfdifyn rtlppgllpylrlvalggtdaflleslfrdtiwghlelsvsrdneellckavreacksal agyhttieqdrelkegnldsrlaiavgiregekmvlqqidgifeqkeleldqleyyqerr lkdlglcgengdilenlyfq
>2h21A (A:) lspavqtfwkwlqeegvitaktpvkasvvteglglvalkdisrndvilqvpkrlwinpda vaaseigrvcselkpwlsvilflirersredsvwkhyfgilpqetdstiywseeelqelq gsqllkttvsvkeyvkneclkleqeiilpnkrlfpdpvtlddffwafgilrsrafsrlnl vvvpmadlinhsagvttedhayevylfslksplsvkageqvyiqydlnksnaelaldygf iepnenrhaytltleisesdpffddkldvaesngfaqtayfdifynrtlppgllpylrlv alggtdaflleslfrdtiwghlelsvsrdneellckavreacksalagyhttieqdrelk egnldsrlaiavgiregekmvlqqidgifeqkeleldqleyyqerrlkdlglcgengdil enly
>2h21B (B:) slspavqtfwkwlqeegvitaktpvkasvvteglglvalkdisrndvilqvpkrlwinpd avaaseigrvcselkpwlsvilflirersredsvwkhyfgilpqetdstiywseeelqel qgsqllkttvsvkeyvkneclkleqeiilpnkrlfpdpvtlddffwafgilrsrafsrlr nenlvvvpmadlinhsagvttedhayevkgaaglfswdylfslksplsvkageqvyiqyd lnksnaelaldygfiepnenrhaytltleisesdpffddkldvaesngfaqtayfdifyn rtlppgllpylrlvalggtdaflleslfrdtiwghlelsvsrdneellckavreacksal agyhttieqdrelkegnldsrlaiavgiregekmvlqqidgifeqkeleldqleyyqerr lkdlglcgengdilenlyfq
>2h21C (C:) slspavqtfwkwlqeegvitaktpvkasvvteglglvalkdisrndvilqvpkrlwinpd avaaseigrvcselkpwlsvilflirersredsvwkhyfgilpqetdstiywseeelqel qgsqllkttvsvkeyvkneclkleqeiilpnkrlfpdpvtlddffwafgilrsrafsrlr nenlvvvpmadlinhsagvttedhayevkgaaglfswdylfslksplsvkageqvyiqyd lnksnaelaldygfiepnenrhaytltleisesdpffddkldvaesngfaqtayfdifyn rtlppgllpylrlvalggtdaflleslfrdtiwghlelsvsrdneellckavreacksal agyhttieqdrelkegnldsrlaiavgiregekmvlqqidgifeqkeleldqleyyqerr lkdlglcgengdilenlyfq
>2h21C (C:) lspavqtfwkwlqeegvitaktpvkasvvteglglvalkdisrndvilqvpkrlwinpda vaaseigrvcselkpwlsvilflirersredsvwkhyfgilpqetdstiywseeelqelq gsqllkttvsvkeyvkneclkleqeiilpnkrlfpdpvtlddffwafgilrsrafsrlrn enlvvvpmadlinhsagvttedhayevkgaaglfswdylfslksplsvkageqvyiqydl nksnaelaldygfiepnenrhaytltleisesdpffddkldvaesngfaqtayfdifynr tlppgllpylrlvalggtdaflleslfrdtiwghlelsvsrdneellckavreacksala gyhttieqdrelkegnldsrlaiavgiregekmvlqqidgifeqkeleldqleyyqerrl kdlglcgengdilenlyf