1. MACROMLECULAR
STRUCTURE AND BIOLOGICAL
FUNCTION OF PRIMARY
PROTIENS
PRESENTED BY
ATHIRA P
2ND SEM BPS
CBPST,KOCHI

2. CONTENTS
• Definition
• Types of protien
• Primary protiens
• Properties
• Functions
• Applications

3. WHAT IS PROTIENS
Protiens are the complex nitrogeneous organic
compounds in animal and plants.Proteins are
polymers of amino acids covalently linked
through peptide bonds into a chain.

4. TYPES OF PROTIEN
GLOBULAR PROTIENS
• They are thread like
molecule,lying side by side
to form fibers in fibrous
protien
• They serve as a chief
structural material of
animal tissue
• They are insoluble in
water,chemically inactive
FIBROUS PROTIENS
• In globular protien the
peptide chains are
folded,looped and twisted
• So molecule is more or less
spherical
• They are soluble in
water,chemically active

5. CLASSIFICATION OF PROTIENS
• Primary protiens
• Secondary protiens
• Teritiary protiens
• Quartanery structure

6. Primary Protiens
Linear arrangement of aminoacid group in
protiens is the primary structure .It is
formed by condensation reaction with
elimination of water molecule

9. PHSYCOCHEMICAL PROPERTIES
• water solubility depends on the structure
• Protiens are poor soluble in polar solvent
Like ETHANOL, insoluble in nonpolar
solvent
• Proteins form colloidal solutions
colloidal-osmotic pressure = onkotic
pressure
• Proteins can be salting-out of the solution
• Protiens are ampholytes
-COOH -COO- + H+
-NH2 + H+ -NH3+

10. • proteins strongly absorb UV radiation

11. • •proteins can be denaturated
• heat, whipping, shaking, radiation
• strong pH changes, salt of heavy metals,
• organic solvents, detergents

12. FUNCTIONS
• ANTIBODIES
• ENZYMES
• HORMONS
• TRANSPORT
• STORAGE
• STRUCTURAL PROTIEN
• CONTRACTILE PROTIEN

13. APPLICATIONS
• COATINGS
• FILMS IN FOOD PACKAGING
• Biotechnology industry protein precipitation
is used to eliminate contaminants commonly
contained in blood.
• Used in many foods
• Protien microchip isused as biomarker to
identify the tumer cells

14. • Biomedical application :-
hydrogel,scaffold,nanofiber,nanoparticles
• Target drug delivery protien system

15. SOME APPLICATIONS