Chains and heterogens:
PDB Chain Sequences:
>2x91A (A:) alvkeeiqakeylenlnkelakrtnveteaawaygsnitdenekkkneisaelakfmkev asdttkfqwrsyqsedlkrqfkaltklgyaalpeddyaelldtlsamesnfakvkvcdyk dstkcdlaldpeieevisksrdheelayywrefydkagtavrsqferyvelntkaaklnn ftsgaeawldeyeddtfeqqledifadirplyqqihgyvrfrlrkhygdavvsetgpipm hllgnmwaqqwseiadivspfpekplvdvsaemekqgytplkmfqmgddfftsmnltklp qdfwdksiiekptdgrdlvchasawdfyltddvrikqctrvtqdqlftvhhelghiqyfl qyqhqpfvyrtganpgfheavgdvlslsvstpkhlekigllkdyvrddearinqlfltal dkivflpfaftmdkyrwslfrgevdkanwncafwklrdeysgieppvvrsekdfdapaky hisadveylrylvsfiiqfqfyksacikagqydpdnvelpldncdiygsaaagaafhnml smgaskpwpdaleafngerimsgkaiaeyfeplrvwleaeniknnvhigwttsnkcvs
>2x91A (A:) keeiqakeylenlnkelakrtnveteaawaygsnitdenekkkneisaelakfmkevasd ttkfqwrsyqsedlkrqfkaltklgyaalpeddyaelldtlsamesnfakvkvcdykdst kcdlaldpeieevisksrdheelayywrefydkagtavrsqferyvelntkaaklnnfts gaeawldeyeddtfeqqledifadirplyqqihgyvrfrlrkhygdavvsetgpipmhll gnmwaqqwseiadivspfpekplvdvsaemekqgytplkmfqmgddfftsmnltklpqdf wdksiiekptdgrdlvchasawdfyltddvrikqctrvtqdqlftvhhelghiqyflqyq hqpfvyrtganpgfheavgdvlslsvstpkhlekigllkdyvrddearinqlfltaldki vflpfaftmdkyrwslfrgevdkanwncafwklrdeysgieppvvrsekdfdapakyhis adveylrylvsfiiqfqfyksacikagqydpdnvelpldncdiygsaaagaafhnmlsmg askpwpdaleafngerimsgkaiaeyfeplrvwleaeniknnvhigwttsnkcvs