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