Chains and heterogens:
PDB Chain Sequences:
>1or4A (A:) mlfkkdrkqetayfsdsngqqknriqltnkhadvkkqlkmvrlgdaelyvleqlqpliqe nivnivdafyknldhesslmdiindhssvdrlkqtlkrhiqemfagviddefiekrnria sihlrigllpkwymgafqelllsmidiyeasitnqqellkaikattkilnleqqlvle
>1or4A (A:) etayfsdsngqqknriqltnkhadvkkqlkmvrlgdaelyvleqlqpliqenivnivdaf yknldhesslmdiindhssvdrlkqtlkrhiqemfagviddefiekrnriasihlrigll pkwymgafqelllsmidiyeasitnqqellkaikattkilnleqqlvle
>1or4B (B:) mlfkkdrkqetayfsdsngqqknriqltnkhadvkkqlkmvrlgdaelyvleqlqpliqe nivnivdafyknldhesslmdiindhssvdrlkqtlkrhiqemfagviddefiekrnria sihlrigllpkwymgafqelllsmidiyeasitnqqellkaikattkilnleqqlvle
>1or4B (B:) qknriqltnkhadvkkqlkmvrlgdaelyvleqlqpliqenivnivdafyknldhesslm diindhssvdrlkqtlkrhiqemfagviddefiekrnriasihlrigllpkwymgafqel llsmidiyeasitnqqellkaikattkilnleqqlvle