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Cross-platforn SNP explorer. By Peter D'Adamo, ND
is a snp on gene
BHMT (betaine--homocysteine S-methyltransferase)
(transliterated to +)
Minor Allele Frequency
- (negative/reverse strand)
08 impacts psychological stress and attention levels.
The BHMT gene (not BHMT2) provides instructions for making a protein that converts betaine (trimethylglycine) and homocysteine (a byproduct of the amino acid methionine, and toxic at high levels) to dimethylglycine and methionine, respectively. BHMT2 converts homocysteine to methionine, and the cofactor for this conversion is zinc. BHMT2 is inhibited by high levels of methionine, and does not use S-adenosylmethionine (SAMe) as a methyl donor. Defects in the BHMT gene could lead to elevated blood homocysteine levels. The product of this gene is central to the ‘short cut’ through the methylation cycle in helping to convert homocysteine to methionine. BHMT may therefore play a critical role in homocysteine homeostasis, or balance, when the manufacture of methionine, a folate-dependent process, is compromised by dietary or genetic influences. The activity of the BHMT gene product can be affected by stress, by cortisol levels, and may play a role in ADD/ADHD through its affect on norepinephrine (adrenaline) levels. Phosphatidylcholine may be indicated.