| 单词 | methionine |
| 例句 | Beans have both lysine and tryptophan, but not the amino acids cysteine and methionine, which are provided by maize. 1491 2005-10-10T00:00:00Z The initiator tRNA interacts with the AUG start codon, and links to a special form of the amino acid methionine that is typically removed from the polypeptide after translation is complete. Concepts of Biology 2013-04-25T00:00:00Z Translation begins at the initiating AUG on the mRNA, specifying methionine. Biology for AP Courses 2022-06-09T00:00:00Z The methionine codon AUG serves as the “start” codon for protein synthesis. Miller & Levine Biology 2018-01-01T00:00:00Z This variation influences the way that proteins containing cysteine and methionine are assembled. Anatomy and Physiology 2013-06-19T00:00:00Z Whereas the lysine is modified chemically — by the addition or removal of a methyl group — to regulate gene expression, the methionine is not. The unexpected role of histones in childhood brain cancer 2018-09-25T04:00:00Z Most insect meals were deficient in calcium and the amino acids methionine and lysine, but those can be added cheaply. Feature: Why insects could be the ideal animal feed 2015-10-14T04:00:00Z Translation begins at the initiating AUG on mRNA, specifying methionine, the first amino acid in any polypeptide. Biology for AP Courses 2022-06-09T00:00:00Z The vast majority of those organic chickens get, in addition to their ration of corn and soy beans, a synthetic version of methionine. People love chickens that are “vegetarian fed.” Here’s why that’s bad for the birds. 2015-04-29T04:00:00Z For example, the side chains of two amino acids—cysteine and methionine—contain sulfur. Anatomy and Physiology 2013-06-19T00:00:00Z Moreover, the K27M mutation affects not only the histone gene in which it occurs; in fact, the methionine broadly inhibits the enzyme that adds methyl groups to lysines in histones. The unexpected role of histones in childhood brain cancer 2018-09-25T04:00:00Z “Too much protein can lead to a dangerous accumulation of methionine in the bloodstream. “Too little protein can lead to malnutrition and all of its complications.” Pennsylvania girl 1 of 8 in world with disorder 2014-08-03T04:00:00Z Amino acids such as valine, methionine, and alanine are nonpolar or hydrophobic in nature, while amino acids such as serine, threonine, and cysteine are polar and have hydrophilic side chains. Biology for AP Courses 2022-06-09T00:00:00Z SAMe stands for S-adenosyl methionine, a naturally occurring molecule that is widely used in Europe for depression, arthritis and other ailments. Study Shows SAMe May Ease Depression 2010-08-31T22:21:00Z The main sources of methionine are animal products, with fruits and vegetables providing less. Vitamin B6 Linked to Lowered Lung Cancer Risk 2010-06-16T14:31:00Z Escherichia coli Strain A is able to grow in a minimal medium only when supplemented with methionine and biotin. Biology for AP Courses 2022-06-09T00:00:00Z And the level of methionine, an amino acid, in her blood was found to be alarmingly high. Pennsylvania girl 1 of 8 in world with disorder 2014-08-03T04:00:00Z In addition to specifying the amino acid methionine, it also serves as the start codon to initiate translation. Biology for AP Courses 2022-06-09T00:00:00Z You insert arginine between the leucine and methionine. Biology for AP Courses 2022-06-09T00:00:00Z The supplements Kennedy takes replace some of her chemical deficiencies and keep the methionine levels within a normal range, but don’t fundamentally alter the course of her disease. Pennsylvania girl 1 of 8 in world with disorder 2014-08-03T04:00:00Z “High levels of methionine can be toxic to the brain,” Strauss says. Pennsylvania girl 1 of 8 in world with disorder 2014-08-03T04:00:00Z A transplanted liver, he says, should regulate methionine levels and “correct the core problem of AdoHcy metabolism,” so Kennedy no longer would need a special diet. Pennsylvania girl 1 of 8 in world with disorder 2014-08-03T04:00:00Z Sulfur is part of the structure of some amino acids such as cysteine and methionine, and is also present in several vitamins and coenzymes. Biology for AP Courses 2022-06-09T00:00:00Z |
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