Amino Acid Quotes

“In describing a protein it is now common to distinguish the primary, secondary and tertiary structures. The primary structure is simply the order, or sequence, of the amino-acid residues along the polypeptide chains. This was first determined by [Frederick] Sanger using chemical techniques for the protein insulin, and has since been elucidated for a number of peptides and, in part, for one or two other small proteins. The secondary structure is the type of folding, coiling or puckering adopted by the polypeptide chain: the a-helix structure and the pleated sheet are examples. Secondary structure has been assigned in broad outline to a number of librous proteins such as silk, keratin and collagen; but we are ignorant of the nature of the secondary structure of any globular protein. True, there is suggestive evidence, though as yet no proof, that a-helices occur in globular proteins, to an extent which is difficult to gauge quantitatively in any particular case. The tertiary structure is the way in which the folded or coiled polypeptide chains are disposed to form the protein molecule as a three-dimensional object, in space. The chemical and physical properties of a protein cannot be fully interpreted until all three levels of structure are understood, for these properties depend on the spatial relationships between the amino-acids, and these in turn depend on the tertiary and secondary structures as much as on the primary. Only X-ray diffraction methods seem capable, even in principle, of unravelling the tertiary and secondary structures.

[Co-author with G. Bodo, H. M. Dintzis, R. G. Parrish, H. Wyckoff, and D. C. Phillips]”
― John Kendrew

“We can influence dopamine production through our diets. You can’t actually eat dopamine, but you can eat the thing that makes it—tyrosine. It is a nonessential amino acid, meaning that you must consume it in your diet because your body doesn’t make its own. However, before you start rushing out to the supermarket to get a cart full of tyrosine—cheese, soybeans, beef, lamb, pork, fish, chicken, nuts, seeds, eggs, dairy, beans, and whole grains—research shows that it really only helps if you’re deficient to begin with.”
― Simon Marshall, The Brave Athlete: Calm the F*ck Down and Rise to the Occasion

“High dosing of a single amino acid can be done for a short period of time, but long term it may cause issues.”
― Steven Magee, Pandemic Supplements

“I travel with amino acid tablets.”
― Steven Magee, Pandemic Supplements

“Glycine significantly improved my health!”
― Steven Magee

“L-Carnitine is associated with good heart health.”
― Steven Magee, Pandemic Supplements

“L-Arginine has the potential to improve your relationship!”
― Steven Magee, Pandemic Supplements

“L-Citrulline really boosted my health!”
― Steven Magee, Pandemic Supplements

“L-Lysine is an essential amino acid that may prevent cold sores.”
― Steven Magee, Pandemic Supplements

“Doctors have been treating altitude sickness induced depression with creatine for many years.”
― Steven Magee, Pandemic Supplements

“Citrulline converts into arginine and nitric oxide in the human body.”
― Steven Magee, COVID Supplements

“Lysine is an amino acid that has antiviral properties.”
― Steven Magee, COVID Supplements

“It seems the 2023 Long COVID research is heading in the direction of my 2022 findings in my high altitude and COVID books. It is causing amino acid deficiencies!”
― Steven Magee