Proteins - : Amino Acid
Proteins - : Amino Acid
Proteins - : Amino Acid
– PROTEINS –
- Performs many vital functions in the body such as:
- Structural support; enzymes; movement; transport; recognition and
receptor molecules; regulation of proteins and DNA; hormones;
antibodies; toxins and venoms
- The monomer of proteins is called AMINO ACID.
AMINO ACID
TYPES OF PROTEINS
2. Secondary structure is produced by the twists and turns of the amino acid
chain
- The amino acid chain (primary structure) is folded into arrangements that
form the protein’s secondary structure
- Amino acid side groups extend outward from the twisted backbone
3. Tertiary structure is the folding of the amino acid chain, with its secondary
structures, into the overall 3Dshape of a protein
- Tertiary structure gives a protein its overall three-dimensional shape, or
conformation
- The positions of secondary structures, disulfide linkages, and hydrogen
bonds play major roles in folding each protein into its tertiary structure
- Attractions between positively and negatively charged side groups and
polar or nonpolar associations also contribute to tertiary structure
- Tertiary structure determines a protein’s function
- The distribution and 3-D arrangement of side groups, in combination with
their chemical properties, determine the overall chemical activity of the
protein
HS BIO 001 - TIPSHS