Chains and heterogens:
PDB Chain Sequences:
>15c8H (H:) evqlqqsgaelvkpgasvklsctasgfnikdtymhwvkqkpeqglewiaqidpangntky dpkfqgkatitadtssntaylhlssltsedsavyycaadppyyghgdywgqgttltvssa kttppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdl ytlsssvtvpsstwpsetvtcnvahpasstkvdkkiv
>15c8L (L:) divltqspaimsaslgervtmtctasssvsssnlhwyqqkpgsspklwiystsnlasgvp arfsgsgsgtsysltissmeaedaatyychqyhrspytfgggtkleikradaaptvsifp psseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstl tltkdeyerhnsytceathktstspivksfnrn