Protein Structure Flashcards
Study for Genetics Exam 2
1
Q
Backbone Atoms
A
Amino acids
2
Q
Peptide Bond
A
Formed between carboxyl group and amino group
3
Q
Proteins (aka Primary Structure)
A
Linear chain of amino acids joined by peptide bonds
4
Q
Secondary Structure
A
Involves H-bonds between backbone atoms
5
Q
Tertiary Structure
A
- H-bonds between polar R groups
- Nonpolar Interactions
- Ionic Bonds between fully charged R groups
- Hydrophobic Interactions
6
Q
Active Site
A
Where proteins bind to substrates
7
Q
Codon
A
3 nucleotides to form amino acid
8
Q
State all characteristics
Genetic Code
A
- Degenerate - redundant; more than one codon encodes the same aa
- Universal
- Continuous
- Nonoverlapping - each nt is part of only one codon
- Sequence of nt determines sequence of aa
9
Q
Silent Mutation
A
Nucleotide seq change, but no aa change
10
Q
Missense Mutation
A
Change a nucleotide, will change the aa
11
Q
Frameshift Mutation
A
Adds/Deletes nucleotide
12
Q
Nonsense Mutation
A
Creates a stop codon
