Zusammenfassung der Ressource
Protein structure
- Primary
- The
seqeunce of
amino acids
- This is
coded for
by DNA
- A change here may result
in a nonfunctional protein
- This is because the R goups may not
interact correctly changing the shape
of the protein and therefore the
shape of the active site.
- Secondary
- When the primary
structure folds to form
either a alpha helix or a
beta pleated sheet.
- Tertiary
- When the secondary structure folds again
due to the interaction of the R groups of the
amino acids. These can form Disulphide
bridges which are rare as only one amino
acid has sulphur in it. The attraction of
positive and negative ions. Hydrogen bonds
as well.
- Quaternery
- When one or
more polypeptide
chain is present
- Small topic but requires
you to be able to apply this
to nearly everything so
learn it.