title: Structure of the iron-sulphur clusters in Azotobacter ferredoxin at 4.0 A resolution.
mesh_terms: D001395:Azotobacter / Q000032:analysis*; D005288:Ferredoxins / Q000302:isolation & purification; D005583:Fourier Analysis; D014961:X-Ray Diffraction
chemical_list: D005288:Ferredoxins