Side group is the part of amino acid that are different in different amino acids.
What are amino acids?
- Amino acids are the monomers of protein.
- These contain both an amino group and a carboxyl group.
- They are amphiprotic in nature.
- They are also amphoteric.
How many amino acids are present?
There are 22 different amino acids present in living system.
What are standard amino acids?
Standard amino acids are the ones that are incorporated into proteins.
What are non-standard amino acids?
- These amino acids are not incorporated into proteins directly.
- They can be present in proteins due to post-translational modifications.
Are all amino acids optically active?
No, all amino acids except glycine are optically active.
What are the parts of an α amino acid?
It contains an
- α-carbon,
- a hydrogen attached to it,
- an amino and carboxyl group and a side group attached to the α-carbon.
How many types of amino acids are present?
The amino acids can be
- non-polar eg, glycine, alanine, etc.
- uncharged polar eg, serine, tyrosine, etc.
- charged polar eg, lysine, arginine, etc.
What are zwitterions?
- Amino acids at physiological pH contain both a positive and a negative charge.
- This form containing both charge is known as zwitterion.
To learn more about side group, amino acid, and glycine here,
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