Categories of R groups

Proteins that are involves in ionic interactions are usually composed of mostly which two amino acids?

Lysine and Arginine

What is the charge of an acidic amino acid?

Negative

What are the four categories of R groups?

Neutral non polar, neutral polar, charged(acidic or basic AA)

What R group is responsible for hydrophobic interactions? What does it do?

Neutral nonpolar. These hydrophobic interactions drive protein folding

Which R group has dipole moments?

Neutral polar R group

Which R groups will more likely be on the surface of a protein?

Polar and charged R groups

What is the charge of a basic amino acid?

Positive

What are the two main functions of neutral non polar R groups?

1. Non polar R groups can drive protein folding 2. Can be a surface for interaction with other hydrophobic molecules

Which R groups are responsible for the H bonding and ionic interactions that provide specificity of protein folding?

Charged groups and polar groups. H bonds between polar R groups and ionic interactions between charged groups.

What types of interaction drive the specifics of protein folding?

H bonds and ionic interactions

What kind of interaction is neutral polar R groups involved in?

Hydrogen bond interactions

Neutral non-polar R groups are involved in what type of interaction?

Hydrophobic interactions

What is the structure of neutral non polar R groups

Simple carbons and hydrophobic rings

How does hydrophobic interactions drive protein structure?

The hydrophobic R groups pack inside the protein to avoid water. This drives the folding of the protein