An integral membrane complex that possesses NADH oxidoreductase activity. The complex is one of the components of the electron transport chain. It catalyzes the transfer of a pair of electrons from NADH to a quinone.
NADPH oxidase complex
Nem1-Spo7 phosphatase complex
nitrate reductase complex +
nitric-oxide synthase complex +
nitrogenase complex +
nuclear membrane complex Bqt3-Bqt4
nuclear membrane protein complex +
oligosaccharyltransferase complex +
outer membrane protein complex
outer mitochondrial membrane protein complex +
PAS complex
PAT complex
phenylacetyl-CoA 1,2-epoxidase complex
phosphatidylinositol 3-kinase complex +
phospholamban complex
photosystem +
photosystem I antenna complex
photosystem I reaction center
photosystem II antenna complex
photosystem II oxygen evolving complex
photosystem II reaction center
phycobilisome
plasma membrane protein complex +
pore complex +
pre-B cell receptor complex
procollagen-proline 4-dioxygenase complex +
protein C inhibitor-acrosin complex
proton-transporting ATP synthase, catalytic core +