37450 (SPP1) PqqLThalassiosira pseudonana
GO:0016491 GO:0004222 GO:0006508 -
Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a mechanism in which water acts as a nucleophile, one or two metal ions hold the water molecule in place, and charged amino acid side chains are ligands for the metal ions.
The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.