Chains and heterogens:
PDB Chain Sequences:
>1q9kA (A:) divmsqspsslavsagekvtmsckssqsllnsrtrknylawyqqkpgqspklliywastr esgvpdrftgsgsgtdftltitsvqaedlavyyckqsynlrtfgggtkleikradaaptv sifppsseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysm sstltltkdeyerhnsytceathktstspivksfnrnec
>1q9kB (B:) evklvesggglvqsggslrlscatsgftftdyymswvrqppgkalewlgfirnkangytt eyspsvkgrftisrdnsqsilylqmntlraedsatyycardhdgyyerfsywgqgtlvtv saakttppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlq sdlytlsssvtvpsstwpsetvtcnvahpasstkvdkkivpr