Question

Match the following: Integral (intrinsic) membrane proteins Transmembrane protein Porins C-- Lipid-linked proteins Peripheral (extrinsic) proteins 1. Channel-forming proteins found in the outer membranes of bacteria, with a beta-barrel motif. 2. Proteins that are associated with membranes, but can be dissociated by relatively mild procedures. 3. Proteins that completely span the membrane. 4. A general class of proteins that are tightly bound to membranes by hydrophobic interactions. 5. Membrane-associated proteins that have covalently-bonded lipids.

Answer 1

Answers: a) Integral cintrinsic) membrane protein. - (4.) A general class of proteins that are tightly bound by hydrophobic interactions. to membrane b) Transmembrane protein: (3.) proteins that compleatly span the membrane. c) porins: outer membranes (1) channel - forming proteins found in the of bacteria , with a beta - barrel motif. d) Lipid - linked proteins: (5) Membrane - associated proteins that have covalently bonded lipids. e) peripheral (extrinsic) proteins: (2) membranes but can be dissociated Proteins that associated with by relatively mild procedures.