41. It inhibits methionine biosynthesis, thus affecting protein formation and subsequent cell division. 42. Animals obtain sulfur from cysteine and methionine in the protein that they consume. 43. Oxidation of the sulfur of methionine results in methionine sulfoxide or methionine sulfone. 44. Oxidation of the sulfur of methionine results in methionine sulfoxide or methionine sulfone. 45. Oxidation of the sulfur of methionine results in methionine sulfoxide or methionine sulfone. 46. This reaction is a critical step in the conversion of homocysteine to methionine . 47. The other sulfur-containing amino acid, methionine , cannot form disulfide bonds. 48. Vitamin B 6 deficiency can also result in impaired transsulfuration of methionine to cysteine. 49. There is scientific evidence that restricting methionine consumption can increase lifespans in some animals. 50. Improper conversion of methionine can lead to atherosclerosis.
