Catalysis of the hydrolysis of nonterminal peptide linkages in oligopeptides or polypeptides, and comprising any enzyme of sub-subclasses EC:3.4.21-99. They are classfied according to the presence of essential catalytic residues or ions at their active sites.

Catalysis of the hydrolysis of N-terminal amino acid residues from oligopeptides or polypeptides.

Catalysis of the release of an N-terminal amino acid, Xaa-Xbb-, in which Xaa is preferably Leu, but may be other amino acids including Pro although not Arg or Lys, and Xbb may be Pro.

Catalysis of the release of an N-terminal amino acid, Xaa-Xbb- from a peptide, amide or arylamide. Xaa is preferably Ala, but may be most amino acids including Pro (slow action). When a terminal hydrophobic residue is followed by a prolyl residue, the two may be released as an intact Xaa-Pro dipeptide.

Any process that modulates the frequency, rate or extent of epidermis development.

Catalysis of the geometric or structural changes within one molecule. Isomerase is the systematic name for any enzyme of EC class 5.

positive regulation of epidermis development

positive regulation of epidermal development

Any process that activates or increases the rate of epidermis development.

Catalysis of a reaction that alters the configuration of one or more chiral centers in a molecule.

racemase and epimerase activity, acting on amino acids and derivatives

Catalysis of a reaction that alters the configuration of one or more chiral centers in an amino acid.

racemase and epimerase activity, acting on carbohydrates and derivatives

Catalysis of a reaction that alters the configuration of one or more chiral centers in a carbohydrate molecule.

Catalysis of a reaction that interconverts cis and trans isomers. Atoms or groups are termed cis or trans to one another when they lie respectively on the same or on opposite sides of a reference plane identifiable as common among stereoisomers.

Catalysis of the reaction: L-serine + L-homocysteine = cystathionine + H2O.

Catalysis of the reaction: L-cystathionine + H2O = L-cysteine + NH3 + 2-oxobutanoate.