Target intelligence / Profile preview

Methionine Metabolic Pathway

Molecular classification
Metabolic Pathway
01

Overview

The methionine metabolic pathway is a central biochemical network responsible for the synthesis, utilization, and recycling of the essential amino acid methionine. This pathway is crucial for protein synthesis, methyl group transfers (methylation reactions), antioxidant defense, and the biosynthesis of other sulfur-containing compounds such as cysteine and polyamines. Disruptions or deficiencies in this pathway are linked with several disorders including homocystinuria, hyperhomocysteinemia and megaloblastic anemia.

Other names
Methionine CycleActivated Methyl CycleTranssulfuration PathwayMethionine Salvage PathwayMTA Cycle
02

Mechanism of action

N/A - This is a pathway, not a single target.

03

Biological functions

Protein synthesis initiationUniversal methyl donor productionAntioxidant precursor biosynthesisCysteine biosynthesisPolyamines biosynthesis
04

Disease associations

HomocystinuriaHyperhomocysteinemiaCardiovascular diseaseMegaloblastic anemiaNeurotransmitter imbalanceEpigenetic dysregulationRedox homeostasis imbalance
05

Safety considerations

Elevated homocysteine levels (homocysteinemia)Vascular riskNeurotoxicityImpaired methylation reactions
06

Interacting drugs

Vitamin B12

2 more in the full profile.

07

Biomarkers

Methionine levelsHomocysteine levelsSAM levelsSAH levelsCysteine levels

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