If you couldn't remember which were essential; then alternative would have been to realize that growing children need cells to divide. This requires DNA replication and translation. Of which the nucleic acid thyime is important. It requires a methyl transfer.
This is where methionine comes in. Methionine combines with ATP to form SAM (a methyl donor)
essential Amino acids (AA)
1) Adults require 9 (AA) = able to make argnine via urea cycle 2) Children require 10 (AA) = they are still developing 3) With PKU tyrosine becomes essential in both adults and children
1. "Three HAL fans will try meth"
a. Threonine = Three
b. Histidine; Arginine; Lysine = HAL
c. Phenylalanine = fans
d. Valine; Isoleucine; Leucine = will
e. Tryptophan = try
f. Methionine = meth
For anyone confused trying to follow @usmleuser007's comment
Slightly modified
Essential amino acids mnemonic "Ah, Three fans will try meth"the
Ah = arginine, histidine
Three = Threonine
Fans (phans)= Phenylalanine
Vill (will -- German accent pronouncing English word "will") = valine, isoleucine, leucine, lysine
Try = tryptophan
Meth = Methionine
Methionine is an essential amino acid. All others listed are not.
B12 comes from protein and is a necessary cofactor for methionine synthase. Low B12 = low methionine.
submitted by nosancuck(42), 2019-05-27T03:48:42Z
Yo dawg we all about PVT TIM HaLL
Phenylalanine, Valine, TryptoDANK, Threonine, Isoleucine, Methionine, Histidine, Leucine Lysine