Protien structure 2

What are the four types of protein structure?

Primary, Secondary, Tertiary, and Quaternary.

What determines the primary structure of a protein?

The order of amino acids in a polypeptide chain, determined by the gene (DNA).

What characterizes secondary protein structure?

Interactions between of amino acids and NCC backbone due to h bonding

How is tertiary structure defined in proteins?

folding of a whole molecule, determined by interactions between R groups.

What types of bonds stabilize tertiary structure?

Disulfide bridges, hydrophobic interactions, ionic bonds, and hydrogen bonds.

What is quaternary structure in proteins?

two or more polypeptide chains come together, as seen in proteins like collagen and hemoglobin.

What role do chaperones play in protein folding?

They assist in the proper folding of proteins and help prevent misfolding.

What can result from protein misfolding?

Diseases such as Alzheimer's and Parkinson's.

What is protein denaturation?

The process where proteins lose their structure due to environmental changes like extreme pH, temperature, or salt concentration.

Does denaturation break peptide bonds?

No, denaturation does not break peptide bonds; it typically results in irreversible changes to protein structure.

What is the relationship between protein structure and function?

The structure of a protein determines its function.

What is the most abundant protein in the human body?

Collagen, which has a triple helix structure.

What are the characteristics of proteins?

Proteins are diverse biomolecules made up of amino acids linked by peptide bonds.

What is the significance of the amino acid sequence in proteins?

The sequence determines the protein's structure and ultimately its function.