Vitamin B12, folate, and the methionine remethylation cycle—biochemistry, pathways, and regulation

DS Froese, B Fowler… - Journal of inherited …, 2019 - Wiley Online Library
Abstract Vitamin B12 (cobalamin, Cbl) is a nutrient essential to human health. Due to its
complex structure and dual cofactor forms, Cbl undergoes a complicated series of …

[HTML][HTML] Metabolism of sulfur-containing amino acids: how the body copes with excess methionine, cysteine, and sulfide

MH Stipanuk - The Journal of nutrition, 2020 - Elsevier
Metabolism of excess methionine (Met) to homocysteine (Hcy) by transmethylation is
facilitated by the expression of methionine adenosyltransferase (MAT) I/III and glycine N …

[PDF][PDF] Shifting landscapes of human MTHFR missense-variant effects

J Weile, N Kishore, S Sun, R Maaieh, M Verby… - The American Journal of …, 2021 - cell.com
Most rare clinical missense variants cannot currently be classified as pathogenic or benign.
Deficiency in human 5, 10-methylenetetrahydrofolate reductase (MTHFR), the most common …

[HTML][HTML] Simplifying the B complex: How vitamins B6 and B9 modulate one carbon metabolism in cancer and beyond

CN Franco, LJ Seabrook, ST Nguyen, JT Leonard… - Metabolites, 2022 - mdpi.com
Vitamin B micronutrients are essential regulators of one carbon metabolism that ensures
human health. Vitamin B9, or folate, lies at the heart of the folate cycle and converges with …

A review of small-molecule inhibitors of one-carbon enzymes: SHMT2 and MTHFD2 in the spotlight

CR Cuthbertson, Z Arabzada… - ACS Pharmacology & …, 2021 - ACS Publications
Metabolic reprogramming is a key hallmark of cancer and shifts cellular metabolism to meet
the demands of biomass production necessary for abnormal cell reproduction. One-carbon …

[HTML][HTML] Analysis of S-adenosylmethionine and S-adenosylhomocysteine: Method optimisation and profiling in healthy adults upon short-term dietary intervention

AC Bravo, MNL Aguilera, NR Marziali, L Moritz… - Metabolites, 2022 - mdpi.com
S-adenosylmethionine (SAM) is essential for methyl transfer reactions. All SAM is produced
de novo via the methionine cycle. The demethylation of SAM produces S …

Insufficient S-sulfhydration of methylenetetrahydrofolate reductase contributes to the progress of hyperhomocysteinemia

D Ji, C Luo, J Liu, Y Cao, J Wu, W Yan… - Antioxidants & Redox …, 2022 - liebertpub.com
Aims: Hyperhomocysteinemia (HHcy) has been considered as a risk factor for
cardiovascular disease, Alzheimer's disease, nonalcoholic fatty liver, and many other …

Metabolomics and integrated network pharmacology analysis reveal that ginkgolides act as potential active anticancer components by regulating one-carbon …

J Zhou, M Qian, C Li, W Zhou, L Yao, Y Chen… - Journal of …, 2022 - Elsevier
Ethnopharmacological relevance Ginkgo biloba L. is a rare tree species unique to China.
Ginkgo biloba is a traditional Chinese medicinal with a long history, acting on the heart and …

[HTML][HTML] Genome wide association study identifies four loci for early onset schizophrenia

S Guo, J Liu, W Li, Y Yang, L Lv, X Xiao, M Li… - Translational …, 2021 - nature.com
Early onset schizophrenia (EOS, defined as first onset of schizophrenia before age 18) is a
rare form of schizophrenia (SCZ). Though genome-wide association studies (GWASs) have …

[HTML][HTML] Allosteric inhibition of MTHFR prevents futile SAM cycling and maintains nucleotide pools in one-carbon metabolism

M Bhatia, J Thakur, S Suyal, R Oniel… - Journal of Biological …, 2020 - ASBMB
Methylenetetrahydrofolate reductase (MTHFR) links the folate cycle to the methionine cycle
in one-carbon metabolism. The enzyme is known to be allosterically inhibited by SAM for …