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arginine biosynthesis + mnemnonic

ornithine biosythnesis in mammals competes with proline biosynthesis

alpha keto glutarate + NH4+ --> glutamate --> gamma glutamyl phosphate --> glutamyl semialdehyde --> ornithine

(comapared to alpha keto glutarate + NH4+ --> glutamate --> gamma glutamyl phosphate --> glutamyl semialdehyde --[non enzymatic schiff base formation]--> delta- pyrroline 5 carboxylate --> proline + CO2

in plants, you add an acetyl blocking group to avoid competition with proline

conclusion; ornithine, and therefore arginine can be biosynthesized from scratch. the only problem is that infants have trouble synthesizing enough... so for kids, arginine is essential amino acid


i'd like to take up a complaint with the mnemnonic provided... its too misleading; a better one would have to based on the official amino acid single letter designation i.e.

MLKR HIV WTF

ya. thats lame, i know... but it will get me through my biochem final next week

my point is, find a better mnemnonic... using simply the first letter of each amino acid is too confusing... there are many amino acids beginning with the same letter — Preceding unsigned comment added by 69.192.110.166 (talk)

Legumes need to be added to "Limiting amino acid" chart

  • From the peanut page, they lack Lysine, Cystine, and Methionine
  • The soy bean page claims soy beans are a complete protein
  • Other beans are missing some, but I'm not sure which.

— Preceding unsigned comment added by 69.12.143.197 (talk • contribs)

BCAA

Why is there no seperate article on branch chain amino acids?.... — Preceding unsigned comment added by Dipset1991 (talk • contribs)

Assessment comment

The comment(s) below were originally left at Talk:Essential amino acid/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.

What is the source for the table? I cannot find this information on the WHO website. — Preceding unsigned comment added by 155.100.147.183 (talk)
The table in question is from the 1985 FAO/WHO/UNO estimate of amino acid requirements. These numbers have since been revised three times by FAO/WHO/UNO (1990, 2001, 2007). The latest (2007) numbers (http://whqlibdoc.who.int/trs/WHO_TRS_935_eng.pdf, page 150 ) are as follows and I have edited the table in the main article accordingly:
Amino Acid mg/kg/day mg/g protein
His 10 15
Ile 20 30
Leu 39 59
Lys 30 45
SAA 15 22
AAA 25 38
Thr 15 23
Trp 4 6
Val 26 39
Dan EH44 (talk) 09:40, 30 June 2008 (UTC)

Last edited at 18:23, 2 July 2008 (UTC). — Preceding unsigned comment added by Dan EH44 (talk • contribs) Substituted at 14:41, 29 April 2016 (UTC)

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