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 gw EBI. All beta proteins Common fold of diphtheria toxin or transcription factors or cytochrome Second domain of Mu adaptin subunit ap of ap adaptor Second domain of Mu adaptin subunit ap of ap adaptor Second domain of Mu adaptin subunit ap of ap adaptor Second domain of Mu adaptin subunit ap of ap adaptor All alpha proteins