I found this excellent description in Amy Yasko's forum: ch3nutrigenomics.com. It was posted by one of the members on the site- raji: http://www.ch3nutrigenomics...
This is a private blog, but it is a very rich source of information about methylation, nutrigenomics and dietary supplementation
Here is a copy of the post:
Methyl group: A methyl group is simply a single carbon atom bonded to 3 hydrogen atoms (CH3).
Methylation: Transfer of methyl groups from one chemical to another is called methylation. Essentially any chemical compound that has a methyl group as part of its chemical ... ..more
There is little known about the A1298C MTHFR mutation. Or so it seems.
Research seems to ignore it almost completely while the C677T MTHFR mutation gets all the attention and glory.
For those who have the A1298C MTHFR mutation, this is frustrating.
Symptoms exist and doctors are saying there is no correlation between the MTHFR A1298C mutation and your symptoms – right?
I’d like to prove them wrong – at least for the symptoms which do correlate with the A1298C MTHFR mutation.
The MTHFR A1298C mutation may affect you if you are either:
--Homozygous A1298C MTHFR mutation
--Compound heterozgous A1298C + C677T ... ..more
It is important to understand the basics of methylation, and although a more detailed study of #methylation chemistry may be interesting, for our needs, it is not really necessary to study it here as it will only serve to confuse matters, so only the most important aspects will be considered.
Put simply, the methylation process makes #neurotransmitters (mood building blocks), and the issue of a person being an under or over methylator can be confusing, because there is contradiction between the various sources of information on the methylation process. For our purposes, we'll say that an over methylator is ... ..more
#Homocysteine is a toxic waste by-product of protein and amino acid metabolism, and #methylation in the body is going on constantly, converting this damaging homocysteine into the #antioxidant #glutathione.
Methylation also converts homocysteine into an important biochemical called #SAMe , a vital methyl donor for the production of the all important neurotransmitters dopamine, serotonin and their derivatives. This is how the body makes good use of this toxic element.
Keeping homocysteine at a healthy, low level is extremely important for keeping our risk of heart disease, stroke and Alzheimer's disease as low as possible. High levels of homocysteine, if left ... ..more