Super Biochemistry--unit 351-400

351: Monitoring Movements Mediated by Kinesin.

352: Tubulin.

353: Microtubule Arrangement.

354: Microtubule Structure.

355: Myosins Move Along Actin Filaments

356: Myosin Lever Arm Length.

The Biosynthesis of Membrane Lipids and Steroids

357: The Biosynthesis of Membrane Lipids and Steroids

358: Site of Cholesterol Synthesis.

359: Properties of plasma lipoproteins

360: HMG-CoA Reductase.

361: Cholesterol Is Synthesized from Acetyl Coenzyme A in Three Stages

362: Cholesterol Formation.

363: Oxidosqualene Cyclase.

364: Squalene Cyclization.

365: Squalene Synthesis.

366: Condensation Mechanism in Cholesterol Synthesis.

367: Synthesis of Isopentenyl Pyrophosphate.

368: Fates of 3-Hydroxy-3-Methylglutaryl CoA.

369: Labeling of Cholesterol.

370: Phosphatidate Is a Common Intermediate in the Synthesis of Phospholipids and Triacylglycerols

371: Lysosome with Lipids.

372: Ganglioside G M1.

373: Synthesis of Sphingolipids.

374: Synthesis of an Ether Phospholipid.

375: Structure of CDP-Diacylglycerol.

376: Fats such as the triacylglycerol molecule (below) are widely used to store excess energy for later use and to fulfill other purposes, illustrated by the insulating blubber of whales.

377: Problems

378: Summary

379: Important Derivatives of Cholesterol Include Bile Salts and Steroid Hormones

380: Three Isoprenoids from Familiar Sources.

381: Vitamin D Synthesis.

382: Pathways for the Formation for Androgens and Estrogens.

383: Pathways for the Formation of Progesterone, Cortisol, and Aldosterone.

384: Cytochrome P450 Mechanism.

385: Cholesterol Carbon Numbering.

386: Biosynthetic Relations of Classes of Steroid Hormones and Cholesterol.

387: Synthesis of Bile Salts.

388: The Complex Regulation of Cholesterol Biosynthesis Takes Place at Several Levels

389: Lovastatin, a Competitive Inhibitor of HMG-CoA Reductase.

390: An Atherosclerotic Plaque.

391: Structure of Propeller Domain.

392: Structure of Cysteine-Rich Domain.

393: LDL Receptor Domains.

394: Endocytosis of LDL Bound to Its Receptor.

395: Schematic Model of Low-Density Lipoprotein.

Prelude: Biochemistry and the Genomic Revolution

396: Biochemistry and Human Biology

397: Prelude: Biochemistry and the Genomic Revolution

398: Chemical Bonds in Biochemistry

399: Biochemical Unity Underlies Biological Diversity

400: Proteins, Encoded by Nucleic Acids, Perform Most Cell Functions