Proteins II

Flashcards covering key concepts related to proteins, their synthesis, folding, and degradation processes.

Chaperones

Proteins that facilitate the correct folding of other proteins.

Ubiquitination

The process of adding ubiquitin to a protein, marking it for degradation.

Proteasome

A complex that degrades unneeded or damaged proteins marked by ubiquitin.

Hsp70 family

A group of molecular chaperones that bind to hydrophobic regions during protein folding.

Hsp60 family

Chaperones that provide an isolation chamber for proteins to fold correctly.

Polyubiquitination

The attachment of multiple ubiquitin molecules to a target protein, often signaling it for degradation.

Proteolysis

The breakdown of proteins into smaller polypeptides or amino acids.

Regulated protein destruction

The controlled process of degrading proteins at specific times for cellular regulation.

Degradation signal

A specific sequence of amino acids that marks a protein for degradation via the ubiquitin system.

Cyclin degradation

The regulated destruction of cyclin proteins required for progression through the cell cycle.