3. Pathways of Amino Acid Degradation

Some Amino Acids Can Contribute to Gluconeogenesis, Others to Ketone Body Formation

Several Enzyme Cofactors Play Important Roles in Amino Acid Catabolism

Six Amino Acids Are Degraded to Pyruvate

Seven Amino Acids Are Degraded to Acetyl-CoA

Phenylalanine Catabolism Is Genetically Defective in Some People

Five Amino Acids Are Converted to α-Ketoglutarate

Four Amino Acids Are Converted to Succinyl-CoA

Branched-Chain Amino Acids Are Not Degraded in the Liver

BOX 18-2 MMA: Sometimes More than a Genetic Disease

Asparagine and Aspartate Are Degraded to Oxaloacetate