Phospho Team

Located on the Fitzsimons Life Science Campus in Aurora, Colorado, we are a dedicated, friendly, hard working team of scientists, committed to providing you with the highest quality antibodies and customer support in the business.

Dr. Michael Browning - Founder

Mike Browning, Ph.D. was born in Dallas, Texas and attended the University of Texas where he received a bachelor’s degree in English Literature. He then spent 5 years trying to become a filmmaker in Los Angeles and he sold shoes to pay his bills. He became very interested in how the brain processed visual images and abandoned filmmaking to start graduate school in Neurobiology in 1974. He received a Ph.D. in Neurobiology from the University of California at Irvine in 1979. He subsequently did a postdoctoral fellowship at Yale and Rockefeller University from 1980 to 1986 with Dr. Paul Greengard who won the Nobel Prize in 2002.

Dr. Browning is the founder of PhosphoSolutions, LLC. He is internationally known for his studies of protein phosphorylation and memory. In addition to his research and development work with PhosphoSolutions, Dr. Browning also was a professor of Neuroscience and Pharmacology at the University of Colorado Health Sciences Center (1987-2009) where he studied the biological bases of memory and how these processes are altered by aging and also by alcohol.

Dr. Browning has a wife and two grown sons. In his spare time he enjoys golf, spending time with his family, and relaxing in his hot tub.

Dr. Michael Browning

Kristin Nixon - President

Kristin was born in Miami, Florida. She attended the University of Colorado in Boulder and graduated with a bachelor’s degree in molecular, cellular, and developmental biology. She began her career in research in Dr. Mike Browning’s neuroscience lab at CU Denver, studying molecular mechanisms of learning and memory. To aid their studies, the lab developed antibodies internally, primarily against NMDA receptors, and Kristin became responsible for antibody production. In 2001, Kristin left the university to help Dr. Browning launch PhosphoSolutions.

She enjoys cooking and all things food and drink, travel (especially relating to food and wine), and spending time with her miniature dachshund, Macy.

Kristin Nixon

Crystal Stutzke - Antibody Development Director

Crystal was born in Idaho, at Mountain Home Air Force Base. She attended Boise State University and graduated with a bachelor’s degree in chemistry with a biochemistry emphasis. She worked at a Boise hospital in the pathology department and in a research lab at the University of Colorado Health Sciences Center. She joined the PhosphoSolutions team in 2004. She focuses her time on expanding our product catalog along with side-by-side assistance with our custom antibody service, antibody quality control, technical support for our antibodies and immunoassays.

Crystal enjoys mountain biking, ice climbing, swimming, and skiing. She has a daughter, Emmie, born in 2013, and a son, Garrett, born in 2016.

Crystal Stutzke

Amy-Archuleta - Director of Scientific Marketing

Amy was born in Denver, Colorado and attended the University of Northern Colorado in Greeley, graduating with a bachelor’s degree in chemistry. She worked in research labs at both the University of Colorado in Boulder and at the University of Colorado Health Sciences Center in Denver. Amy started working for PhosphoSolutions in 2005, and now focuses on website design and maintenance, email marketing as well as antibody production and quality control.

Her outside interests include travel, dancing, skiing, music, and hiking. In 2011, she put most of these activities on hold in favor of her new hobby: her daughter Maya. In 2013 Amy welcomed her second daughter, Zia.

Amy Archuleta

Kameron Simpson - Senior Product Manager

Kameron was born in Denver, Colorado. He attended Union College in Schenectady, New York, graduating with a bachelor’s degree in biology. Kameron started with PhosphoSolutions in 2011. In addition to antibody purification and quality control, he focuses on product management, sales analysis, marketing and customer outreach, as well as social media.

In his spare time he plays soccer, enjoys snowboarding, biking, and hiking and is involved with the Boys and Girls Club of Denver where he coaches children’s soccer leagues and provides after school care for children and young teenagers.

Kameron Simpson

Patti Pickell - Vice President of Administration

Patti has a Bachelor’s Degree in Business Administration from The University of Denver. Prior to joining Phospho, she was a Principal in TMA Ventures, an entity that founded and developed several technology-based start-up companies. Earlier in her career, Patti worked as an IP paralegal for local intellectual property law firms. She currently consults with Marsh Fischmann & Breyfogle LLP in the capacity of Business Manager. She has been with PhosphoSolutions since 2004, where she is responsible for overseeing accounts payables/receivables, corporate legal requirements and human resource activities.

Patti and her husband Erv are both Colorado natives from the Denver area. They have two grown children, April and Kellen. In her spare time, Patti enjoys hiking and traveling.

Patti Pickell

More about us.

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What makes us different?

  1. If we attempt to make an antibody and it doesn’t work, we throw it away. We never sell an antibody that we can’t get to work in our hands.
  2. Our commitment to strict validation standards ensures a clean signal in endogenous protein and verifies phosphospecificity for relevant products.
  3. We are dedicated to reproducibility. Look for our “Pooled Serum” icon. Each antibody with this icon is purified from its own pool of serum to ensure lot-to-lot consistency.
  4. We guarantee our antibodies. If you can’t get the antibody to work in your application, we will provide a 100% refund.
  5. When making a custom antibody, we provide personalized customer support from start to finish, from peptide design, to purification, to characterization.