The chemical reactions involving tRNA, transfer RNA, a class of relatively small RNA molecules responsible for mediating the insertion of amino acids into the sequence of nascent polypeptide chains during protein synthesis. Transfer RNA is characterized by the presence of many unusual minor bases, the function of which has not been completely established.

Catalysis of the hydrolysis of Xaa-Pro dipeptides; also acts on aminoacyl-hydroxyproline analogs. No action on Pro-Pro.

Catalysis of the hydrolysis of nonterminal peptide linkages in oligopeptides or polypeptides by a reaction mechanism involving a serine residue (and a histidine residue) at the active center of the enzyme.

Catalysis of the cleavage of the Leu-Leu bond in synthetic tetradecapeptide renin substrate, producing angiotensin I, but not active on natural angiotensinogen. Also hydrolyzes BZ-Arg-para-nitroanilide.

Catalysis of the reaction: acylaminoacyl-peptide + H2O = acylamino acid + peptide.

The growth phase of the hair cycle. Lasts, for example, about 3 to 6 years for human scalp hair.

Enables the directed movement of L-alanine, the levorotatory isomer of 2-aminopropanoic acid, into, out of, within or between cells.

Catalysis of the preferential cleavage of Leu-Xaa, Met-Xaa and Phe-Xaa. Hydrolyzes elastin.

Enables the directed movement of L-arginine, 2-amino-5-guanidinopentanoic acid, into, out of, within or between cells.

Catalysis of the preferential cleavage of Lys-Xaa

Catalysis of the release of protein hormones, neuropeptides and renin from their precursors, generally by cleavage of -Lys-Arg-Xaa at the Arg-Xaa bond.

Enables the directed movement of L-gamma-aminobutyric acid (4-aminobutyrate, GABA) into, out of, within or between cells.

Catalysis of the release of protein hormones and neuropeptides from their precursors, generally by cleavage of -Lys-Arg-Xaa at the Arg-Xaa bond.

Enables the directed movement of L-glutamine, 2-amino-4-carbamoylbutanoic acid, into, out of, within or between cells.

Enables the directed movement of glycine, aminoethanoic acid, into, out of, within or between cells.