This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
PDB ohl EBI. Alpha and beta proteins or TIM beta or alphabarrel Aldolase aminolaevulinate dehydratase ALAD porphobilinogen synthase aminolaevulinate dehydratase ALAD porphobilinogen synthase EBI ohl November aminolaevulinate dehydratase ALAD porphobilinogen synthase Files uploaded by Nichalp's script