OBSOLETE. Catalysis of the cleavage of a signal peptide from a protein precursor by a serine endopeptidase mechanism.

A protein glycosylation process in which a carbohydrate or carbohydrate derivative unit is added to a protein via a C atom.

Catalysis of the reaction: L-rhamnulose 1-phosphate = glycerone phosphate + (S)-lactaldehyde.

The oxidation of two peptidyl-cysteine residues to form a peptidyl-L-cystine (dicysteine) in which segments of peptide chain are linked by a disulfide bond; the cross-link may be between different or the same peptide chain.

Catalysis of the reaction: ATP + L-rhamnulose = ADP + L-rhamnulose 1-phosphate.

Catalysis of the cleavage of single-stranded RNA that is monophosphorylated at its 5'-end; cleavage occurs predominantly at positions 5 and 6 nucleotides from the 5'-end and in A + U-rich regions, and is blocked by the presence of a 5'-triphosphate group.

Catalysis of the endohydrolysis of (1->4)-beta-D-galactosidic linkages in keratan sulfate.

OBSOLETE. The covalent cross-linking of pyrroloquinoline-quinone to peptidyl-glutamic acid and peptidyl-tyrosine.

Catalysis of the cleavage of single-stranded RNA that is monophosphorylated at its 5'-end; cleavage occurs predominantly at 5 nucleotides from the 5'-end and in A + U-rich regions, and is blocked by the presence of a 5'-triphosphate group.

The formation of a protein active site cross-link from the alpha-carboxyl carbon of residue N, an alanine, to the alpha-amino nitrogen of residue N+2, a glycine, coupled with the formation of a double bond to the alpha-amino nitrogen of residue N+1 which loses one hydrogen, and the loss of a molecule of water.

The transfer, from NAD, of ADP-ribose to peptidyl-serine to form peptidyl-O-(ADP-ribosyl)-L-serine.

Catalysis of the reaction: RNA + H2O = 5'-phosphomononucleotides. Cleaves RNA in the 3' to 5' direction, leaving an undigested core of 3-5 nucleotides.

The chemical reactions and pathways resulting in the formation of N4-hydroxymethyl-L-asparagine from other compounds, including peptidyl-asparagine.

The formation of a protein-FMN linkage via S-(6-FMN)-L-cysteine.

Catalysis of the reaction: acetyl-CoA + N-terminal L-alanyl-peptide = CoA + H+ + N-terminal N-alpha-acetyl-L-alanyl-peptide.

Catalysis of the hydrolysis of alpha-D-(1->2)-(4-O-methyl)glucuronosyl links in the main chain of hardwood xylans.

Catalysis of the hydrolysis of (1->3) linkages between alpha-L-fucose and N-acetylglucosamine residues in glycoproteins.

Catalysis of the endohydrolysis of (1->4)-alpha-D-galactosaminidic linkages in poly(D-galactosamine).

Catalysis of the hydrolysis of (1->4)-alpha-D-glucosidic linkages in amylaceous polysaccharides, to remove successive maltotriose residues from the non-reducing chain ends.

Catalysis of the hydrolysis of (1->2)-alpha-D-glucosidic linkages at the branch points of dextrans and related polysaccharides, producing free D-glucose.