Chains and heterogens:
PDB Chain Sequences:
>4irrA (A:) mevmnkeniiadapsdvvktvqqqvhlnqdeykylkqveqilregtrrddrtgtgtisif gmqskyclrngtipllttkrvywkgvleellwfisgstdgkllmeknvkiwekngdrafl dnlgftsreegdlgpvygfqwrhfgakyvdchtdysgqgvdqlaevirqikeqpdsrrii msawnpsdlgqmvlppchtmcqfyvdngelscqlyqrsgdmglgvpfnlasygllthmia kvcglkpgtlvhtlgdahvysnhvdalkiqldrepyafpkirftrdvasiddftsdmial ddykchpkipmdmav
>4irrA (A:) qqvhlnqdeykylkqveqilregtrrddrtgtgtisifgmqskyclrngtipllttkrvy wkgvleellwfisgstdgkllmeknvkiwekngdrafldnlgftsreegdlgpvygfqwr hfgakyvdchtdysgqgvdqlaevirqikeqpdsrriimsawnpsdlgqmvlppchtmcq fyvdngelscqlyqrsgdmglgvpfnlasygllthmiakvcglkpgtlvhtlgdahvysn hvdalkiqldrepyafpkirftrdvasiddftsdmialddykchpkipmd
>4irrB (B:) mevmnkeniiadapsdvvktvqqqvhlnqdeykylkqveqilregtrrddrtgtgtisif gmqskyclrngtipllttkrvywkgvleellwfisgstdgkllmeknvkiwekngdrafl dnlgftsreegdlgpvygfqwrhfgakyvdchtdysgqgvdqlaevirqikeqpdsrrii msawnpsdlgqmvlppchtmcqfyvdngelscqlyqrsgdmglgvpfnlasygllthmia kvcglkpgtlvhtlgdahvysnhvdalkiqldrepyafpkirftrdvasiddftsdmial ddykchpkipmdmav
>4irrB (B:) qqvhlnqdeykylkqveqilregtrrddrtgtgtisifgmqskyclrngtipllttkrvy wkgvleellwfisgstdgkllmeknvkiwekngdrafldnlgftsreegdlgpvygfqwr hfgakyvdchtdysgqgvdqlaevirqikeqpdsrriimsawnpsdlgqmvlppchtmcq fyvdngelscqlyqrsgdmglgvpfnlasygllthmiakvcglkpgtlvhtlgdahvysn hvdalkiqldrepyafpkirftrdvasiddftsdmialddykchpkipmd