BIOSC-101 Lecture Notes - Lecture 5: Multiprotein Complex, Ef Hand, Lipid Bilayer
26 Aug 2020
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Document Summary
Structural proteins: determines cell shapes and direct intercellular movement of. Scaffold proteins: bring other proteins together to perform certain functions. Membrane transport proteins: permits the flow of ions through membranes. Regulatory proteins: controls cell activities altering functions of other proteins. Motor proteins: more materials such as protein and organelles (ex: signaling proteins) Multiprotein complex: molecular machines that perform complex traits. Primary structure: linear sequence of amino acids linked by polypeptide bonds. Secondary structure: folding of polypeptide chains into a-helices or b-sheets (1. Tertiary structure: packing a-helices and b- sheets in a larger stable structure. Quaternary structure: multiple polypeptide chains beyond tertiary. B turns: loaded on the surface (3) of a protein. The form sharp bends that reverse the and 2) direction of polypeptide backbones. Tertiary structures have stabilized hydrophobic interactions between nonpolar side chains and hydrogen bonds involving polar side chains. Globular: generally hydrophobic, compactly folded, often spherical. Integral membrane protein: embedded within the phospholipid bilayer membrane.
