Chains and heterogens:
PDB Chain Sequences:
>2nqnA (A:) mefttglmsldtalnemlsrvtpltaqetlplvqcfgrilasdvvspldvpgfdnsamdg yavrladiasgqplpvagksfagqpyhgewpagtcirimwgapvpegceavvmqeqteqm dngvrftaevrsgqnirrrgedisagavvfpagtrlttaelpviaslgiaevpvirkvrv alfstgdelqlpgqplgdgqiydtnrlavhlmleqlgcevinlgiirddphalraafiea dsqadvvissggvsvgeadytktileelgeiafwklaikpgkpfafgklsnswfcglpgn pvsatltfyqlvqpllaklsgntasglparqrvrtasrlkktpgrldfqrgvlqrnadge levtttghqgshifssfslgncfivlerdrgnvevgewvevepfnalfggl
>2nqnA (A:) glmsldtalnemlsrvtpltaqetlplvqcfgrilasdvvspldvpgfdnsamdgyavrl adiasgqplpvagksfagqpyhgewpagtcirimwgapvpegceavvmqeqteqmdngvr ftaevrsgqnirrrgedisagavvfpagtrlttaelpviaslgiaevpvirkvrvalfst gdelqlpgqplgdgqiydtnrlavhlmleqlgcevinlgiirddphalraafieadsqad vvissggvsvgeadytktileelgeiafwklaikpgkpfafgklsnswfcglpgnpvsat ltfyqlvqpllaklsgntasglparqrvrtasrlkktpgrldfqrgvlqrnadgelevtt tghqgshifssfslgncfivlerdrgnvevgewvevepfnalfgg
>2nqnB (B:) mefttglmsldtalnemlsrvtpltaqetlplvqcfgrilasdvvspldvpgfdnsamdg yavrladiasgqplpvagksfagqpyhgewpagtcirimwgapvpegceavvmqeqteqm dngvrftaevrsgqnirrrgedisagavvfpagtrlttaelpviaslgiaevpvirkvrv alfstgdelqlpgqplgdgqiydtnrlavhlmleqlgcevinlgiirddphalraafiea dsqadvvissggvsvgeadytktileelgeiafwklaikpgkpfafgklsnswfcglpgn pvsatltfyqlvqpllaklsgntasglparqrvrtasrlkktpgrldfqrgvlqrnadge levtttghqgshifssfslgncfivlerdrgnvevgewvevepfnalfggl
>2nqnB (B:) glmsldtalnemlsrvtpltaqetlplvqcfgrilasdvvspldvpgfdnsamdgyavrl adiasgqplpvagksfagqpyhgewpagtcirimwgapvpegceavvmqeqteqmdngvr ftaevrsgqnirrrgedisagavvfpagtrlttaelpviaslgiaevpvirkvrvalfst gdelqlpgqplgdgqiydtnrlavhlmleqlgcevinlgiirddphalraafieadsqad vvissggvsvgeadytktileelgeiafwklaikpgkpfafgklsnswfcglpgnpvsat ltfyqlvqpllaklsgntasglparqrvrtasrlkktpgrldfqrgvlqrnadgelevtt tghqgshifssfslgncfivlerdrgnvevgewvevepfnalfgg