Reactome: A Curated Pathway Database
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Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins.

Stable Identifier
R-HSA-163200
Type
Pathway
Species
Homo sapiens
Locations in the PathwayBrowser
Summation

Oxidation of fatty acids and pyruvate in the mitochondrial matrix yield large amounts of NADH. The respiratory electron transport chain couples the re-oxidation of this NADH to NAD+ to the export of protons from the mitochonrial matrix, generating a chemiosmotic gradient across the inner mitochondrial membrane. This gradient is used to drive the synthesis of ATP; it can also be bypassed by uncoupling proteins to generate heat, a reaction in brown fat that may be important in regulation of body temperature in newborn children.

Participants
Participant Of
Orthologous Events