Chains and heterogens:
PDB Chain Sequences:
>1kvkA (A:) mlsevllvsapgkvilhgehavvhgkvalavalnlrtflvlrpqsngkvslnlpnvgikq vwdvatlqlldtgfleqgdvpaptleqleklkkvaglprdcvgneglsllaflylylaic rkqrtlpsldimvwselppgaglgssaaysvcvaaalltaceevtnplkdrgsigswpee dlksinkwayegervihgnpsgvdnsvstwggalryqqgkmsslkrlpalqilltntkvp rstkalvagvrsrlikfpeimaplltsidaislecervlgemaaapvpeqylvleelmdm nqhhlnalgvghasldqlcqvtaahglhskltgaggggcgitllkpglerakveaakqal tgcgfdcwetsigapgvsmhsatsiedpvrqalgl
>1kvkA (A:) mlsevllvsapgkvilhgehavvhgkvalavalnlrtflvlrpqsngkvslnlpnvgikq vwdvatlqlldteklkkvaglprdcvgneglsllaflylylaicrkqrtlpsldimvwse lppgaglgssaaysvcvaaalltaceevtnplkdrgsigswpeedlksinkwayegervi hgnpsgvdnsvstwggalryqqgkmsslkrlpalqilltntkvprstkalvagvrsrlik fpeimaplltsidaislecervlgemaaapvpeqylvleelmdmnqhhlnalgvghasld qlcqvtaahglhskltgaggggcgitllkpglerakveaakqaltgcgfdcwetsigapg vsmhsatsiedpvrqalg