The process of covalently altering one or more amino acids in a protein after translation has begun but before the protein has been released from the ribosome.

Catalysis of the reaction: 2 ubiquinol + O2 + 4 H+ = 2 ubiquinone + 2 H2O + 4 H+ [periplasmic space].

Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.

Catalysis of an oxidation-reduction (redox) reaction in which a heme group acts as a hydrogen or electron donor and reduces a hydrogen or electron acceptor.

Primary active transport of a solute across a membrane, driven by exothermic flow of electrons from a reduced substrate to an oxidized substrate. Primary active transport is catalysis of the transport of a solute across a membrane, up the solute's concentration gradient, by binding the solute and undergoing a series of conformational changes. Transport works equally well in either direction and is driven by a primary energy source.

The addition of an acetyl group to one or more amino acids in a protein, occurring after the protein has been completely translated and released from the ribosome.

The process of covalently altering one or more amino acids in a protein after the protein has been completely translated and released from the ribosome.

OBSOLETE. A small disulfide-containing redox protein that serves as a glutathione-disulfide oxidoreductase.

Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a sulfur dioxide (SO2) stimulus.

OBSOLETE. Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: 4 ferrocytochrome c + O2 = 4 ferricytochrome c + 2 H2O.

A respiratory electron flow (from NAD(P)H to plastoquinone (PQ) and O2) involving both a nonphotochemical reduction and re-oxidation of PQ pool.

A membrane-associated protein complex that is required for a late stage of endosomal transport. In budding yeast, this complex consists of Vps55p and Vps68p proteins.

Catalysis of the reaction: GDP-beta-L-galactose + alpha-D-mannose 1-phosphate = GDP-alpha-D-mannose + beta-L-galactose-1-phosphate.

Catalysis of the reaction: GDP-beta-L-galactose + alpha-D-glucose 1-phosphate = beta-L-galactose-1-phosphate + GDP-alpha-D-glucose.

The double lipid bilayer enclosing the etioplast and separating its contents from the rest of the cytoplasm; includes the intermembrane space.

The volume enclosed by the membrane of an aleurone grain.

Catalysis of the reaction: GDP-L-galactose + myo-inositol 1-phosphate = alpha-L-galactose-1-phosphate + GDP-myoinositol.

OBSOLETE. A copper-containing protein that acts as an electron carrier between methylamine dehydrogenase and cytochrome c.