A protein glycosylation process in which a carbohydrate or carbohydrate derivative unit is added to a protein via a sulfur atom of a peptidyl-amino-acid such as cysteine or methionine.

The formation of peptidyl-dehydroalanine from either peptidyl-tyrosine by phenyl transfer, or from peptidyl-serine, which is coupled with the formation of 5-imidazolinone by the two neighboring residues, produces an 4-methylidene-imidazole-5-one active site of some amino acid ammonia-lyases; the 4-methylidene-imidazole-5-one, is formed autocatalytically by cyclization and dehydration of the sequence ASG.

Catalysis of the reaction: 4-deoxy-beta-D-gluc-4-enuronosyl-(1->3)-N-acetyl-D-galactosamine 6-sulfate + H(2)O = 4-deoxy-beta-D-gluc-4-enuronosyl-(1->3)-N-acetyl-D-galactosamine + H(+) + sulfate.

Portion of the neuronal cell soma from which the axon originates.

Catalysis of the reaction: 4-deoxy-beta-D-gluc-4-enuronosyl-(1->3)-N-acetyl-D-galactosamine 4-sulfate + H(2)O = 4-deoxy-beta-D-gluc-4-enuronosyl-(1->3)-N-acetyl-D-galactosamine + H(+) + sulfate.

Catalysis of the hydrolysis of the 3-sulfate groups of the N-sulfo-D-glucosamine 3-O-sulfate units of heparin.

Catalysis of the reaction: 3'-phosphoadenylyl sulfate + [heparan sulfate]-glucosamine = adenosine 3',5'-bisphosphate + [heparan sulfate]-glucosamine 3-sulfate; modifies selected glucosamine residues preceded by GlcA2S.

Catalysis of the reaction: 3'-phosphoadenylyl sulfate + a thiol = adenosine 3',5'-bisphosphate + an S-alkyl thiosulfate.

Catalysis of the reaction: 3'-phospho-5'-adenylyl sulfate + 5alpha-cholane-3alpha,7alpha,12alpha,24-tetrol = 3alpha,7alpha,12alpha-trihydroxy-5alpha-cholan-24-yl sulfate + adenosine 3',5'-diphosphate + H(+).

Catalysis of the reaction: 3'-phosphoadenylyl sulfate + [heparan sulfate]-glucosamine = adenosine 3',5'-bisphosphate + [heparan sulfate]-glucosamine 3-sulfate.

Catalysis of the reaction: 3'-phospho-5'-adenylyl sulfate + 5beta-scymnol = 5beta-scymnol sulfate + adenosine 3',5'-diphosphate + H(+).

The formation of a covalent cross-link between RNA and a peptidyl-serine residue by the formation of O-(phospho-5'-5NA)-L-serine.

The formation of a covalent cross-link between RNA and a protein.

The glycosylation of proteins via 04 atom of hydroxyproline to form O4-glycosyl-L-hydroxyproline; the most common form is arabinofuranosyl-4-proline.

The modification of peptidyl-lysine to form peptidyl-N6-formyl-L-lysine.

The addition of a formyl group to a protein amino acid.

The formation of S-(peptidyl-glycyl)-peptidyl-cysteine cross-links by the formation of a thiolester between cysteine and the carboxy-terminal glycine of ubiquitin and other proteins.

The adenylylation of peptidyl-tyrosine to form peptidyl-O4'-(phospho-5'-adenosine)-L-tyrosine.

OBSOLETE. The formation of the green fluorescent protein chromophore cross-link from the alpha-carboxyl carbon of residue n, a serine, to the alpha-amino nitrogen of residue n+2, a glycine, and a dehydration to form a double bond to the alpha-amino nitrogen of residue n+1. This cross-linking is coupled with a dehydrogenation of residue n+1 to form a double bond between the alpha and beta carbons.

The guanylylation of peptidyl-lysine to form peptidyl-N6-(phospho-5'-guanosine)-L-lysine.