All
 D12 Amino Acids, Peptides, and Proteins D000602 +
 D12.776 Proteins D011506 +
 D12.776.157 Carrier Proteins D002352 +
 D12.776.157.427 Iron-Binding Proteins D033862 +
 D12.776.157.427.374 Nonheme Iron Proteins D019159 +
 D12.776.157.427.374.375 Iron-Sulfur Proteins D007506 +
 D12.776.157.427.374.375.025 Adrenodoxin D000325 
 D12.776.157.427.374.375.275 Ferredoxins D005288 
 D12.776.157.427.374.375.954 Electron Transport Complex III D014450 
 D12.776.157.427.374.375.637 Iron Regulatory Protein 1 D035941 
 D12.776.157.427.374.375.818 Iron Regulatory Protein 2 D035942 
 D12.776.157.427.374.375.909 Electron Transport Complex II D042963 +
 D12.776.157.427.374.375.863 Electron Transport Complex I D042967