BP

GO:0006457

protein folding

The process of assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure.

IEA

BP

GO:0030150

protein import into mitochondrial matrix

The import of proteins across the outer and inner mitochondrial membranes into the matrix. Unfolded proteins enter the mitochondrial matrix with a chaperone protein; the information required to target the precursor protein from the cytosol to the mitochondrial matrix is contained within its N-terminal matrix-targeting sequence. Translocation of precursors to the matrix occurs at the rare sites where the outer and inner membranes are close together.

IBA

BP

GO:0050790

regulation of catalytic activity

Any process that modulates the activity of an enzyme.

IEA

CC

GO:0001405

presequence translocase-associated import motor

Protein complex located on the matrix side of the mitochondrial inner membrane and associated with the presequence translocase complex; hydrolyzes ATP to provide the force to drive import of proteins into the mitochondrial matrix.

IBA

CC

GO:0005634

nucleus

A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.

IDA

CC

GO:0005739

mitochondrion

A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.

IDA

CC

GO:0005759

mitochondrial matrix

The gel-like material, with considerable fine structure, that lies in the matrix space, or lumen, of a mitochondrion. It contains the enzymes of the tricarboxylic acid cycle and, in some organisms, the enzymes concerned with fatty acid oxidation.

IDA

MF

GO:0000774

adenyl-nucleotide exchange factor activity

Stimulates the hydrolysis and exchange of adenyl nucleotides by other proteins.

IBA

MF

GO:0042803

protein homodimerization activity

Interacting selectively and non-covalently with an identical protein to form a homodimer.

IEA

MF

GO:0051082

unfolded protein binding

Interacting selectively and non-covalently with an unfolded protein.

IDA

MF

GO:0051087

chaperone binding

Interacting selectively and non-covalently with a chaperone protein, a class of proteins that bind to nascent or unfolded polypeptides and ensure correct folding or transport.

IEA