The chemical reactions and pathways resulting in the breakdown of ergothioneine, a naturally occurring metabolite of histidine with antioxidant properties.

The chemical reactions and pathways involving ergothioneine, a naturally occurring metabolite of histidine with antioxidant properties.

The chemical reactions and pathways resulting in the formation of N-alpha,N-alpha,N-alpha-trimethyl-L-histidine, also known as histidine betaine or hercynine, a trimethylated derivative of histidine.

The chemical reactions and pathways involving N-alpha,N-alpha,N-alpha-trimethyl-L-histidine, also known as histidine betaine or hercynine, a trimethylated derivative of histidine.

Catalysis of the reaction: S-adenosyl-L-methionine + L-histidine = S-adenosyl-L-homocysteine + N-alpha,N-alpha,N-alpha-trimethyl-L-histidine.

Catalysis of the reaction: S-adenosyl-L-methionine + N-alpha-methyl-L-histidine = S-adenosyl-L-homocysteine + N-alpha,N-alpha-dimethyl-L-histidine.

The pathway resulting in the formation of N-alpha,N-alpha,N-alpha-trimethyl-L-histidine from histidine. Histidine undergoes three methylations by a histidine-alpha-N-methyltransferase (EC:2.1.1.44) to form N-alpha,N-alpha,N-alpha-trimethyl-L-histidine (also known as hercynine or histidine betaine).

Catalysis of the reaction: inositol phosphorylceramide + H2O = C26-phytoceramide + phosphorylinositol.

Catalysis of the reaction: inositol phosphosphingolipid + H2O = sphingolipid + phosphorylinositol.

Catalysis of the reaction: mannosyl-diinositol phosphorylceramide + H2O = C26-phytoceramide + mannosyldiphosphorylinositol.

Catalysis of the reaction: mannosyl-inositol phosphorylceramide + H2O = C26-phytoceramide + mannosylphosphorylinositol.

OBSOLETE. The pathway resulting in the formation of ergothioneine from N-alpha,N-alpha,N-alpha-trimethyl-L-histidine (also known as hercynine or histidine betaine).

The chemical reactions and pathways resulting in the breakdown of N-alpha,N-alpha,N-alpha-trimethyl-L-histidine, also known as histidine betaine or hercynine, a trimethylated derivative of histidine.

Catalysis of the reaction: adenosine-34 + H2O = inosine-34 + NH3, in a tRNA-Ala molecule.

Catalysis of the reaction: 4 hydroquinone + O2 = 4 benzosemiquinone + 4 H2O.

Catalysis of the hydrolysis of ester linkages immediately 5' to an apurinic/apyrimidinic (AP; also called abasic) site within a ribonucleic acid molecule by creating internal breaks, generating a single-strand break with 5'-ribose phosphate and 3'-hydroxyl ends.

A protein complex that possesses tRNA-specific adenosine-34 deaminase activity. In eukaryotes the complex is a heterodimer; the subunits are known as Tad2p and Tad3p in yeasts and Adat2 and Adat3 in human.

Any DNA duplex unwinding involved in meiotic cell cycle DNA replication.

Any DNA ligation involved in meiotic cell cycle DNA replication.

Any DNA duplex unwinding involved in mitotic cell cycle DNA replication.