By Laiba Sarwar

INTRODUCTION

.

Protein are made

up of carbon,

Hydrogen, Oxygen

and Nitrogen. They

are large complex

molecule that play

many critical role in

our body

Formation

Proteins are polymers made up of

Monomers Amino Acid.

There are 20 different Amino Acids.

Amino Acid can join up in any order and

form an infinite number of protein

molecule.

Structure of Amino Acid

How Two Amino Acid

Join Two Amino Acid Join together by

condensation and form peptide bond.

Sources of Protein

Protein Structure

Primary Structure

Secondary Structure

Tertiary Structure

Quaternary Structure

Primary Structure

The primary structure of proteins is defined asa linear sequence of amino acids joinedtogether by peptide bonds.

Peptide bonds and disulfide bonds areresponsible for maintaining the primarystructure.

Secondary Structure

The chain of Amino Acid bend and twist and

forms a stable structure that is held in position

by hydrogen bond.

A Helix is the most common Secondary

Structure.