Chains and heterogens:
PDB Chain Sequences:
>1khuA (A:) pkhwcsivyyelnnrvgeafhasstsvlvdgftdpsnnknrfclgllsnvnrnstientr rhigkgvhlyyvggevyaeclsdssifvqsrncnyhhgfhpttvckipsgcslkifnnqe faqllaqsvnhgfetvyeltkmctirmsfvkgwgaeyhrqdvtstpcwieihlhgplqwl dkvltqmgsphnpissvs
>1khuB (B:) khwcsivyyelnnrvgeafhasstsvlvdgftdpsnnknrfclgllsnvnrnstientrr higkgvhlyyvggevyaeclsdssifvqsrncnyhhgfhpttvckipsgcslkifnnqef aqllaqsvnhgfetvyeltkmctirmsfvkgwgaeyhrqdvtstpcwieihlhgplqwld kvltqmgsphnpissvs
>1khuC (C:) khwcsivyyelnnrvgeafhasstsvlvdgftdpsnnknrfclgllsnvnrnstientrr higkgvhlyyvggevyaeclsdssifvqsrncnyhhgfhpttvckipsgcslkifnnqef aqllaqsvnhgfetvyeltkmctirmsfvkgwgaeyhrqdvtstpcwieihlhgplqwld kvltqmgsphnpissvs
>1khuD (D:) hwcsivyyelnnrvgeafhasstsvlvdgftdpsnnknrfclgllsnvnrnstientrrh igkgvhlyyvggevyaeclsdssifvqsrncnyhhgfhpttvckipsgcslkifnnqefa qllaqsvnhgfetvyeltkmctirmsfvkgwgaeyhrqdvtstpcwieihlhgplqwldk vltq