Amino acids

[Matt]

Can anyone tell me if selenocysteine and pyrrolysine are essential or nonessential amino acids?

[energizer bunny]

There are two nonstandard special amino acids, which are selenocysteine and pyrrolysine. A selenocysteine is present in several enzymes. They are not coded directly for genetic code unlike other amino acids. A pyrrolysine is an organism that is used to produce methane. These are not the only nonstandard amino acids there are actually many different ones that are not incorporated into a protein. Nonstandard amino acids are ones that occur mostly in the metabolic pathways of the twenty standard amino acids. These nonstandard amino acids are just modified versions of the twenty standard amino acids. [5]

20 Amino Acids

i got this off google mate...still doesnt answer your question fully...

[swol_je]

Nonessential, our bodies can produce these out of the foods we eat.

[Matt]

Nonessential, our bodies can produce these out of the foods we eat.

Where did you get the information from that shows this lol??

[MuscleScience]

pyrrolysine is produced by Methane producing organisms called archaea which are primitive forms of bacteria if you will and is a derivative of Lysine. Selenocysteine is a derivative of cysteine, I would not worry about being difficient in either.