Homocystinuria due to cystathionine beta-synthase deficiency
May. 03, 2023
This is an image preview.
Start a Free Account
to view the full image.
-
Nearly 3,000 illustrations, including video clips of neurologic disorders.
-
Every article is reviewed by our esteemed Editorial Board for accuracy and currency.
-
Full spectrum of neurology in 1,200 comprehensive articles.
-
Listen to MedLink on the go with Audio versions of each article.
Interaction of folate cycling with the remethylation of homocysteine to methionine
Folate metabolism. The interaction of folate cycling with the remethylation of homocysteine to methionine under the action of methionine synthase. Vitamin B12 is an additional cofactor for this reaction. Abbreviations (in alphabetic order): B12, cobalamin; MS, methionine synthase; 5MTHF, 5-methyl-terahydrofolate; methylenetetrahydrofolate dehydrogenase; SAH, S-adenosyl homocysteine; SAM, S-adenosyl methionine; THF, tetrahydrofolate. (Image by Douglas Lanska MD MS MSPH.)