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.
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.
They do exist in D-configuration
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).
The monomers of proteins are amino acids.
Yes, a polypeptide is a sequence of amino acids.
amino acids make proteins and an enzyme is a protein so......
There are twenty amino acids, of which around half are made in the body. The other 10 are called 'essential amino acids', because they cannot be formed in our cells, so we must take them in, in our diet.
Proteins by nature are made of amino acids...so none of them.
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.
The monomers of proteins are called 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).
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.
Some amino acids are very soluble in water, but many are not.
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
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.
No. Almost all vegetarian foods have a variety of amino acids.
The monomers of proteins are amino acids.
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.
They are the amino acids. They are the monomers