| 1.
Protein function or activity can be regulated by the binding
of other polypeptides or small molecules; this binding
leads to a change in protein structure. |
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| 2.
Protein function or activity can be regulated by post-translational
modifications that lead to changes in protein
structure. |
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| 3.
Protein function or activity can be regulated by interactions
between proteins. |
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| 4.Most
post-translational modifications are reversible and regulated. |
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| 5.
Some proteins are post-translationally modified by coupling
to a lipid molecule -- such modifications regulate a protein's
localization within the cell. |
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| 6.
Post-translational addition of the small polypeptide ubiquitin is
often used to target proteins for proteolytic degradation
by the proteosome. |
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| 7.
The concentration and net activity of the protein can be
regulated by both the rate of its synthesis, assembly and
degradation. |
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| 8. Allostery involves
the regulation of protein function by molecules that bind
to sites other than the protein’s active site. |
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