Expression, Purification, and Assembly of the Functional Human Stearoyl-CoA Desaturase Complex using Cell-Based and Cell-Free Technologies Michael A. Goren and Brian G. Fox Department of Biochemistry, College of Agricultural and Life Sciences, University of Wisconsin, Madison WI 53706 NIGMS U54 GM074901 JL Markley, PI, GN Phillips and BG Fox, Co-Investigators NIH GM50853, BG Fox NSF East Asia and Pacific Summer Institutes Fellowship, MA Goren
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Expression, Purification, and Assembly of the Functional Human Stearoyl-CoA Desaturase Complex using Cell-Based and Cell-Free Technologies Michael A. Goren.
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Expression, Purification, and Assembly of the Functional Human Stearoyl-CoA Desaturase Complex using Cell-Based and Cell-Free Technologies
Michael A. Goren and Brian G. Fox
Department of Biochemistry, College of Agricultural and Life Sciences, University of Wisconsin, Madison WI 53706
NIGMS U54 GM074901
JL Markley, PI, GN Phillips and BG Fox, Co-Investigators
NIH GM50853, BG Fox
NSF East Asia and Pacific Summer Institutes Fellowship, MA Goren
Acknowledgements
CESG Staff: David Aceti, Arash Bahrami, Lenka Bittova, Lai Bergeman, E. Sethe Bergie, Christopher Bianchetti, Craig Bingman, Eduard Bitto, Claudia Cornilescu, Ronnie Frederick, Brian Fox, Michael Goren, Katarzyna Gromek, Leigh Grundhoefer, Teagan Hayes, Andrew Larkin, Elena Levin, Betsy Lytle, Shin-Ichi Makino, John Markley, Yuko Matsubara, Karl Nichols, Xiaokang Pan, Francis Peterson, George N. Phillips, Jr. Mike Popelars, John Primm, Sarata Sahu, Kory Seder, Donna Troestler, Frank Vojtik, Brian Volkman, Gary Wesenberg, Russell Wrobel, and Zsolt Zolnai
University of Wisconsin Undergraduates:Erin Bulleit, Michael Cassidy, Breanne Cyr, Colin Diner, Theresa Filarsky, Margaret Harteau, Soyoon Hwang, Sydney Junion, Michael Kern, Heather Kindrachuk, Benjamin Jyhhan Kuo, Haibo Li, Christopher Lindholm, Yun Liu, Steven Marmer, Kathryn Nix, Young Ju Oh, Lane Oling, Joseph Taft, Jonathan Wagner, Nicholas Wild, Kevin Ziolo, Andrew Moriarity, and Samantha Schmechel
Dane County Youth Apprentice Program:Stuart Ballard, Zachery Kunkel, Joshua Perry, and Sharon West
Cell-Free Science and Technology Research Center, Ehime UniversityYaeta Endo and Yuzuru Tozawa
On the stability of proteins…
“There are no unstable proteins, only unstable biochemists…”
Irwin C. Gunsalus
Mammalian desaturases
• Add double bonds to long-chain fatty acids
• Help to control membrane composition
• Numerous diseases associated with primary lipid metabolism
Stearoyl-CoA desaturase complex
• A highly regulated enzyme required for biosynthesis of mono-unsaturated fatty acids
• cyt b5 reductase, full-length cyt b5, SCD
• Implicated in obesity, diabetes, heart disease, skin disorders, etc
pVP56 expression of fl-cytb5
• Expression of the soluble, non-functional domain as His8-tagged protein
• Full-length His8 and His8-MBP variants were tested
• Also applied to soluble domain of flavin-containing cytb5 reductase