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.
PDB fz EBI. Membrane and cell surface proteins and peptides Family proteincoupled receptorlike Family proteincoupled receptorlike Bacteriorhodopsinlike Bacteriorhodopsin EBI fz November Bacteriorhodopsin Files uploaded by Nichalp's script
Page 2023 Free-images.com. All images are Public Domain