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No one knows, however there are several scientific theories. Personally, I believe it was by chance because neither L or D amino acids are thermodynamically, sterically, chemically or physically favored.

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11y ago
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14y ago

tRNAsynthetase enzyme is responsible for the selection of L amino acids .the active sire of enzyme prefer the L amino acids to bind rather than D amino acids.

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11y ago

They do exist in D-configuration

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Q: Why almost all amino acids in nature will be of the L-configuration?
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Related questions

What are protein that do not contain amino acids?

Proteins by nature are made of amino acids...so none of them.


What is the monomer for protein?

Proteins are formed from the basic units called as amino acids. There are 20 amino acids in the body of human being. You have over 300 amino acids found in the nature.


What are the monomers for the polymers in proteins?

The monomers of proteins are called Amino Acids.


What is basis nature amino acids?

As proteins are amino acids so all peptides and polypeptides are polymers of amino acids. There are 20 amino acids that are relevant to the make-up of mammalian proteins Several other amino acids are found in the body free or in combined states (i.e. not associated with peptides or proteins).


What is the difference between amino acids and L amino acids?

D & L amino acids are both optical isomers of each other; i.e. they're compounds with the same molecular formula but different spatial arrangements. Every optically active compound has a D- and an L- isomer. They ONLY differ in their ability to rotate plane polarized light in opposite directions.


Is amino acids soluble in water?

Some amino acids are very soluble in water, but many are not.


What is the relationship between protein and amino?

Protiens are nothing but simply polypeptide chain of amino acids. In other terms amino acids are the building blocks of protiens. The specific sequence of amino acids determine the nature of protien they produce. -Anant


Why did nature choose the specific 20 amino acids?

It is my belief that at that time when chemical reactions began nature chose the specific 20 amino acids because of the composition of the atmosphere of the early earth.


How can a balanced vegetarian diet provide all the essential amino acids?

No. Almost all vegetarian foods have a variety of amino acids.


Proteins are made up of monomers called?

The monomers of proteins are amino acids.


What is the monomer for building a protein?

Amino acids. There are twenty different amino acids that nature uses routinely to produce proteins. Nature has a very specific order for incorporating these amino acids to produce any specific protein. This order is coded by the genes of the organism and in an elaborate way, the code is interpreted into the order of amino acid incorporation during protein synthesis.


What repeating units make up a protein fatty acids peptide acids amino acids carboxylic acids?

They are the amino acids. They are the monomers