Thank you for meeting us at HUPO

Thank you to everyone who came by our booth at HUPO in Adelaide. We hope you enjoyed the conference as much as we did. We greatly appreciated the opportunity to present our QPrESTTM protein standards.

Introducing QPrESTs

At HUPO we were delighted to introduce QPrESTs, Stable Isotope-Labeled protein standards for absolute quantification using mass spectrometry. 

  • QPrESTs are designed to cover the most unique sequence within each human protein
  • Are added early on in the workflow
  • Include regions with several promising proteotypic peptides 
  • Deliver high accuracy quantification for a wide range of sample types 

QPrEST standards targeting the vast majority of the proteins in the human proteome are now available in the Atlas Antibodies catalog.

Learn more about QPrEST technology and find products targeting your protein. 

Find out more

User Testimonials

“My group has been working with QPrESTs for many years and we have used them with great success for absolute quantification of proteins in a wide variety of sample types such as cell lines, tissues and plasma. I would highly recommend using QPrESTs since they are digested together with the sample which leads to very robust sample preparation and targeted proteomics assays with excellent repeatability”

Mathias Uhlén, Professor of Biotechnology, Royal Institute of Technology, Stockholm, Sweden

"We like to work with the QPrESTs in our targeted proteomic studies because they are easily available for a large number of proteins and they provide several peptides for quantification. A big advantage for us is also that peptides are surrounded by their natural amino acid sequence better reflecting the sample preparation process for absolute quantification."

Patrick Oeckl Ph.D., Department of Neurology, Ulm University Hospital, Germany

Discover the benefits of QPrEST products

Read our white papers to discover the benefits and unique features of the QPrEST products.

If you have any questions or need help finding the right product, you are always welcome to contact our support. We are happy to help!

QPrEST High Accuracy Targeted Proteomics

QPrEST High Accuracy Targeted Proteomics

In this white paper, you can learn about the features of the QPrEST standards. The QPrEST standards are spiked in early and show a similar digestion efficiency to the endogenous proteins. They are pre-quantified and ready-to-use, and can be used to determine absolute protein amounts in multiple sample types.

Read white paper

Validated Isotope-Labeled Protein Standard for Absolute Quantification Using Mass Spectrometry

Validated Isotope-Labeled Protein Standard for Absolute Quantification Using Mass Spectrometry

In this white paper, you can learn about the QPrEST+ protein standards, which contain peptides validated according to the CPTAC assay criteria.

Read white paper

Using the QTag for LC Retention Time Normalization

Using the QTag for LC Retention Time Normalization

In this white paper, you can learn about the QTag, present in all QPrEST standards. The QTag consists of a set of theoretical tryptic peptides which can be used for retention time normalization.

Read white paper

About Atlas Antibodies

Building on our heritage with the Human Protein Atlas project, we provide highly validated reagents that enable leading research in biology, diagnostics and medicine for the purpose of understanding and improving human health.

Primary Antibodies

Atlas Antibodies offer a wide range of highly validated research antibodies originating from the Human Protein Atlas project. 

Targeted Proteomics

Atlas Antibodies offer QPrESTs, heavy labeled protein standards for absolute quantification of human proteins using mass spectrometry.

Find QPrEST products

In our Targeted Proteomics catalog, we offer 20,000 QPrEST standards targeting the majority of human proteins. Find the standard you need today. 

Find QPrESTs