Chains and heterogens:
PDB Chain Sequences:
>1kfqA (A:) mqqvipaprvqvtqpyagqkpgtsglrkkvseatqpnylenfvqsifntlrkdelkpknv lfvggdgryfnrqaifsiirlayandisevhvgqaglmstpasshyirkvneevgncigg iiltashnpggkehgdfgikfnvrtgapapedftdqiythttkikeyltvdyefekhinl dqigvykfegtrlekshfevkvvdtvqdytqlmqklfdfdllkglfsnkdfsfrfdgmhg vagpyakhifgtllgcskesllncdpsedfggghpdpnltyahdlvelldihkkkdvgtv pqfgaacdgdadrnmilgrqffvtpsdslaviaananlifkngllgaarsmptsgaldkv aakngiklfetptgwkffgnlmdaglinlcgeesfgtgsnhirekdgiwavlawltilah knkntdhfvtveeivtqywqqfgrnyysrydyeqvdsagankmmehlktkfqyfeqlkqg nkadiydyvdpvdqsvsknqgvrfvfgdgsriifrlsgtgsvgatiriyfeqfeqqqiqh etatalaniiklgleisdiaqftgrneptvit
>1kfqA (A:) qqvipaprvqvtqpyagqkpgtsglrkkvseatqpnylenfvqsifntlrkdelkpknvl fvggdgryfnrqaifsiirlayandisevhvgqaglmstpasshyirkvneevgnciggi iltashnpggkehgdfgikfnvrtgapapedftdqiythttkikeyltvdyefekhinld qigvykfegtrlekshfevkvvdtvqdytqlmqklfdfdllkglfsnkdfsfrfdgmhgv agpyakhifgtllgcskesllncdpsedfggghpdpnltyahdlvelldihkkkdvgtvp qfgaacdgdadrnmilgrqffvtpsdslaviaananlifkngllgaarsmptsgaldkva akngiklfetptgwkffgnlmdaglinlcgeesfgtgsnhirekdgiwavlawltilahk nkntdhfvtveeivtqywqqfgrnyysrydyeqvdsagankmmehlktkfqyfeqlkqgn kadiydyvdpvdqsvsknqgvrfvfgdgsriifrlsgtgsvgatiriyfeqfeqqqiqhe tatalaniiklgleisdiaqftgrneptvit
>1kfqB (B:) mqqvipaprvqvtqpyagqkpgtsglrkkvseatqpnylenfvqsifntlrkdelkpknv lfvggdgryfnrqaifsiirlayandisevhvgqaglmstpasshyirkvneevgncigg iiltashnpggkehgdfgikfnvrtgapapedftdqiythttkikeyltvdyefekhinl dqigvykfegtrlekshfevkvvdtvqdytqlmqklfdfdllkglfsnkdfsfrfdgmhg vagpyakhifgtllgcskesllncdpsedfggghpdpnltyahdlvelldihkkkdvgtv pqfgaacdgdadrnmilgrqffvtpsdslaviaananlifkngllgaarsmptsgaldkv aakngiklfetptgwkffgnlmdaglinlcgeesfgtgsnhirekdgiwavlawltilah knkntdhfvtveeivtqywqqfgrnyysrydyeqvdsagankmmehlktkfqyfeqlkqg nkadiydyvdpvdqsvsknqgvrfvfgdgsriifrlsgtgsvgatiriyfeqfeqqqiqh etatalaniiklgleisdiaqftgrneptvit
>1kfqB (B:) qqvipaprvqvtqpyagqkpgtsglrkkvseatqpnylenfvqsifntlrkdelkpknvl fvggdgryfnrqaifsiirlayandisevhvgqaglmstpasshyirkvneevgnciggi iltashnpggkehgdfgikfnvrtgapapedftdqiythttkikeyltvdyefekhinld qigvykfegtrlekshfevkvvdtvqdytqlmqklfdfdllkglfsnkdfsfrfdgmhgv agpyakhifgtllgcskesllncdpsedfggghpdpnltyahdlvelldihkkkdvgtvp qfgaacdgdadrnmilgrqffvtpsdslaviaananlifkngllgaarsmptsgaldkva akngiklfetptgwkffgnlmdaglinlcgeesfgtgsnhirekdgiwavlawltilahk nkntdhfvtveeivtqywqqfgrnyysrydyeqvdsagankmmehlktkfqyfeqlkqgn kadiydyvdpvdqsvsknqgvrfvfgdgsriifrlsgtgsvgatiriyfeqfeqqqiqhe tatalaniiklgleisdiaqftgrneptvit