All
 D12 Amino Acids, Peptides, and Proteins D000602 +
 D12.776 Proteins D011506 +
 D12.776.543 Membrane Proteins D008565 +
 D12.776.543.750 Receptors, Cell Surface D011956 +
 D12.776.543.750.720 Receptors, Neurotransmitter D017981 +
 D12.776.543.750.720.600 Receptors, Neuropeptide D018013 +
 D12.776.543.750.720.600.285 Receptors, Corticotropin D018043 +
 D12.776.543.750.720.600.285.500 Receptors, Melanocortin D044101 +
 D12.776.543.750.720.600.285.500.500 Receptor, Melanocortin, Type 1 D044102 
 D12.776.543.750.720.600.285.500.750 Receptor, Melanocortin, Type 2 D044103 
 D12.776.543.750.720.600.285.500.875 Receptor, Melanocortin, Type 3 D044104 
 D12.776.543.750.720.600.285.500.937 Receptor, Melanocortin, Type 4 D044105