Chains and heterogens:
PDB Chain Sequences:
>1kw9B (B:) sierlgylgfavkdvpawdhfltksvglmaagsagdaalyradqrawriavqpgelddla yaglevddaaalermadklrqagvaftrgdealmqqrkvmgllclqdpfglpleiyygpa eifhepflpsapvsgfvtgdqgighfvrcvpdtakamafytevlgfvlsdiidiqmgpet svpahflhcngrhhtialaafpipkrihhfmlqantiddvgyafdrldaagritsllgrh tndqtlsfyadtpspmievefgwgprtvdsswtvarhsrtamwghksvrgqr
>1kw9B (B:) sierlgylgfavkdvpawdhfltksvglmaagsagdaalyradqrawriavqpgelddla yaglevddaaalermadklrqagvaftrgdealmqqrkvmgllclqdpfglpleiyygpa eifhepflpsapvsgfvtgdqgighfvrcvpdtakamafytevlgfvlsdiidiqmgpet svpahflhcngrhhtialaafpipkrihhfmlqantiddvgyafdrldaagritsllgrh tndqtlsfyadtpspmievefgwgprtvdsswtvarhsrtamwghksv