#8EssentialAminoAcids
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##Dr Urbane :#Threonine, Tryptophan, Valine, Arginine, Histidine, Lysine, Phenylalanine, Leucine, isoleucine, Methionine
##Dr Urbane : These Ten Valuable Amino-acids Have Long Preserved Life in Man 》
11.48am
5-September-2016 Monday
#https://askabiologist.asu.edu/venom/building-blocks-protein
《©HeatherMcClees》《Out of the 22 amino acids that exist, nine are essential and 11 are non-essential.》
《© Copyright 2016 Hearst Communications, Inc. & ©JanAnnigan》
《Essential Amino Acids
Of the 20 amino acids in your body’s proteins, nine are essential to your diet because your cells cannot manufacture them: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine. A tenth amino acid, arginine, is essential during times of rapid growth – for example, during childhood – because, although you can synthesize it, you can’t always produce enough of it. The amounts of each essential amino acid you require can depend on the overall amino acid composition of the protein you consume. For instance, your cells can make cysteine from methionine if necessary; however, if your intake of cysteine is low, you need extra methionine in your diet not only to meet your methionine needs but also to manufacture cysteine.
Non-Essential Amino Acids
In contrast to essential amino acids, non-essential amino acids are required by your body but not in your diet. Your cells can synthesize these from extra amino acids you consume or from other metabolic molecules. Tyrosine, for example, can convert to phenylalanine, while serine can be created from molecules that are produced during the burning of carbohydrates for energy. The non-essential amino acids include alanine, asparagine, aspartate, cysteine, glutamate, glutamine, glycine, proline, serine and tyrosine. Arginine is also non-essential unless you are in a period of growth.》
1) A: #Arginine 》A tenth amino acid, arginine, is essential during times of rapid growth – for example, during childhood – because, although you can synthesize it, you can’t always produce enough of it.
2) H: #Histidine
3) I: #Isoleucine
4) L: #leucine
5) L: #lysine
6) M: #Methionine
7) P: #Phenylalanine
8) T: #Threonine
9) T: #tryptophan
10) V: #valine
《Copyright © by Wikipedia 》
《An essential amino acid orindispensable amino acid is an amino acid that cannot be synthesized de novo (from scratch) by the organism, and thus must be supplied in its diet. ☆The nine amino acids humans cannot synthesize are phenylalanine, valine, threonine, tryptophan, methionine, leucine, isoleucine, lysine, and histidine (i.e., F V T W M L I K H).[1][2]
Six other amino acids are considered conditionally essential in the human diet, meaning their synthesis can be limited under special pathophysiological conditions, such as prematurity in the infant or individuals in severe catabolic distress.[2]
☆These six are arginine, cysteine, glycine, glutamine, proline, and tyrosine (i.e. R C G Q P Y). Five amino acids are dispensable in humans, meaning they can be synthesized in the body.
☆These five are alanine, aspartic acid,
asparagine, glutamic acid and serine (i.e., A D N E S).[2]》
☆These six are arginine, cysteine, glycine, glutamine, proline, and tyrosine (i.e. R C G Q P Y). Five amino acids are dispensable in humans, meaning they can be synthesized in the body.
☆These five are alanine, aspartic acid,
asparagine, glutamic acid and serine (i.e., A D N E S).[2]》
《Copyright © by Wikipedia 》
《Copyright © Wikipediaudio》
《An essential amino acid or indispensable amino acid is an "amino acid that cannot be synthesized "de novo (from scratch) by the organism, and thus must be supplied in its diet. The nine amino acids humans cannot synthesize are "phenylalanine, "valine, "threonine, "tryptophan, "methionine, "leucine, "isoleucine, "lysine, and "histidine (i.e., F V T W M L I K H).[1][2]
Six other amino acids are consideredconditionally essential in the human diet, meaning their synthesis can be limited under special pathophysiological conditions, such as prematurity in the infant or individuals in severe catabolic distress.[2] These six are "arginine, "cysteine, "glycine, "glutamine, "proline, and "tyrosine (i.e. R C G Q P Y). Five amino acids aredispensable in humans, meaning they can be synthesized in the body. These five are "alanine, "aspartic acid, "asparagine, "glutamic acid and "serine (i.e., A D N E S).[2]
Contents
Essentiality in humans[edit]
| Essential | Nonessential ** |
|---|---|
| "Histidine | "Alanine |
| "Isoleucine | "Arginine* |
| "Leucine | "Aspartic acid |
| "Lysine | "Cysteine* |
| "Methionine | "Glutamic acid |
| "Phenylalanine | "Glutamine* |
| "Threonine | "Glycine* |
| "Tryptophan | "Proline* |
| "Valine | "Serine* |
| "Tyrosine* | |
| "Asparagine* | |
| "Selenocysteine |
(**) "Pyrrolysine, sometimes considered "the 22nd amino acid", is not listed here as it is not used by humans.[5]
"Eukaryotes can synthesize some of the amino acids from other substrates. Consequently, only a subset of the amino acids used in protein synthesis are "essential nutrients.》
《150% higher in the first year of life. "Cysteine (or sulphur-containing amino acids), "tyrosine (or aromatic amino acids), and "arginine are always required by infants and growing children.[6][7]》
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12.54am
ReplyDelete#8EssentialAminoAcids +#1Childhood+#1Conditional
》5-September-2016 Monday