Atm is a redox sensor linking genome stability and carbon metabolism
J Biol Chem (2002) 277(30):2672932
-Glutamylcysteine synthetase: mRNA stabilization and independent subunit transcription by 4-hydroxy-2-nonenal
In contrast, when tissue folate or cobalamin stores are intact (Silberberg et al, 1997) or in the case of an alteration of the transsulfuration pathway dependent on vitamin B 6 deficiency or on heterozygosity for a CBS defect (Bostom et al, 1995a), an excessive methionine supply might lead to an important elevation of plasma homocysteine
This special interplay further highlights that the loss of any one system can overwhelm the compensatory capacity of the others, forcing the CNS into a state of redox imbalance, glial activation, and progressive inflammation (Figure 1)
56, 6792 (Academic Press, Cambridge, 2019)