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Something Called Side Groups

The side groups are what make each amino acid different from the others. Of the 20 side groups used to make proteins, there are two main groups: polar and non-polar. These names refer to the way the side groups, sometimes called "R" groups, interact with the environment.

Every amino acids have the alpha carbon which is bind with hydrogen atom, carboxyl group, and amino group, R group. Due to variation in R group each amino acid is different from one another.

What is amino acid?

Amino acids are the basic organic component of protein which is essential to life as they involved  all cell functions.

Some proteins act as enzymes, antibodies, some provide structural support. There are 20 essential amino acids as they cannot naturally synthesized.

Structurally amino acids composed 4 different parts such as alpha carbon, a hydrogen atom (H), a Carboxyl group (-COOH), one Amino group (-NH2) and finally a variable R group.

On the basis of variable R group, amino acids have 4 categories such as  nonpolar, polar, negatively charged, and positively charged.

The amino acid sequence is the collection of information stored in genetic code of DNA and RNA.

Learn more about amino acid, here:

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