Chains and heterogens:
PDB Chain Sequences:
>1opgH (H:) evqlvqsggglvnpgrslklscaasgftfssygmswvrqtpekrlewvaaisgggtyihy pdsvkgrftisrdnaknnlylqmsslrsedtalyyctrhpfyrydggnyyamdhwgqgts vtvsaakttppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpa vlqsdlytlsssvtvpssprpsetvtcnvahpasstkvdkkivprdc
>1opgL (L:) delltqspatlsvtpgdsvslscrasqsisnnlhwyqqkshesprllikyasqsisgips rfsgsgsgtdftlsinsvetedfgmyfcqqsnswpltfgggskleikradaaptvsifpp sseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstlt ltkdeyerhnsytceathktstspivksfnrnec