The modification of histones by removal of acetyl groups.

Interacting selectively with an antigen peptide, a fragment of a foreign protein derived by proteolysis within the cell.

Interacting selectively with an antigen peptide, a fragment of an exogenous foreign protein derived by endocytosis of the protein and proteolysis within the cell.

Splicing of tRNA substrates via recognition of the folded RNA structure that brings the 5' and 3' splice sites into proximity and cleavage of the RNA at both the 3' and 5' splice sites by an endonucleolytic mechanism, followed by ligation of the exons.

Catalysis of the release of N-terminal transit peptides from precursor proteins imported into the mitochondrion, typically with Arg in position P2.

Interacting selectively with a T cell receptor, the antigen-recognizing receptor on the surface of T cells.

The removal of one or more ubiquitin moieties from a protein.

Enables the directed movement of tricarboxylic acids into, out of, within or between cells. Tricarboxylic acid are organic acids with three COOH groups.

Catalysis of the release of an N-terminal octapeptide as second stage of processing of some proteins imported in the mitochondrion.

Enables the directed movement of carbohydrate into, out of, within or between cells.

Catalysis of the preferential cleavage at the amino group of hydrophobic residues in insulin, casein, hemoglobin, and a number of other proteins and polypeptides.

Enables the directed movement of monosaccharide into, out of, within or between cells.

Catalysis of the release of a C-terminal dipeptide, Xaa-Xbb from oligopeptide-Xaa-Xbb, when Xaa is not Pro, and Xbb is neither Asp nor Glu. Converts angiotensin I to angiotensin II.

growth hormone-releasing hormone receptor activity

Combining with growth hormone-releasing hormone to initiate a change in cell activity.

Addition of the 7-methylguanosine cap to the 5' end of a nascent messenger RNA transcript.

Catalysis of the preferential cleavage where P1', P2' and P3' are hydrophobic residues.