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 qad EBI. All beta proteins Immunoglobulinlike betasandwich Immunoglobulin set domains antibody variable domainlike Immunoglobulin heavy chain variable domain VH All beta proteins Immunoglobulinlike betasandwich Immunoglobulin set domains antibody variable domainlike CD Vset domains All beta proteins Immunoglobulinlike betasandwich