Measuring the Proteins That Matter Most with SomaSeq Discovery

Multichannel laboratory pipette dispensing liquid samples into a microplate during a high-throughput proteomics workflow.
Published On: August 19, 2026Categories: Science Spotlight1.7 min read

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Many of the proteins most relevant to disease biology are also the most difficult to measure. Cytokines, chemokines, growth factors, and other signaling molecules often circulate at extremely low concentrations, yet they can provide critical insight into immune activity, inflammation, therapeutic response, and disease progression. Illumina’s SomaSeq Discovery was designed to address this challenge by combining SOMAmer-based protein detection with next-generation sequencing, enabling the measurement of approximately 9,500 protein targets from a single serum sample.

This sequencing-based approach fills an important gap in the proteomics toolbox. While mass spectrometry remains the leading technology for unbiased protein discovery, isoform characterization, and post-translational modification analysis, many researchers are ultimately interested in a different question: how do known, biologically relevant proteins change across hundreds or thousands of samples? SomaSeq Discovery is optimized for exactly that use case, delivering the sensitivity, reproducibility, and scalability required for large-cohort studies.

Rather than competing with mass spectrometry, SomaSeq Discovery is often most powerful when used alongside it. Mass spectrometry can identify novel biological signals and generate new hypotheses, while SomaSeq Discovery can rapidly evaluate those signals across large collections of samples. As projects move from discovery into validation, biomarker assessment, or longitudinal analysis, the ability to generate standardized protein measurements at scale becomes increasingly valuable.

The platform is also a natural fit for modern multiomics research. Protein abundance reflects biological activity that cannot always be predicted from DNA or RNA alone. Integrating proteomic data with genomic and transcriptomic datasets can help researchers connect genetic variation and gene expression to downstream molecular phenotypes, providing a more complete view of disease mechanisms and pathway activity.

At SeqCenter, SomaSeq Discovery is available for human serum samples and is sequenced on a dedicated Illumina NovaSeq X Plus flow cell. For researchers studying cancer, immunology, inflammation, neurology, metabolism, and other complex diseases, SomaSeq Discovery provides a practical way to add large-scale proteomic profiling to an existing NGS-driven research program without requiring specialized mass spectrometry workflows.

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Published On: August 19, 2026Categories: Science Spotlight1.7 min read

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  • Methylation Sequencing Series, Part 3: How Long‑Read Platforms Reveal Methylation Without Chemical Conversion

  • Methylation Sequencing Series, Part 2: Bisulfite Sequencing as the Historical Gold Standard

  • Methylation Sequencing Series, Part 1: What Is DNA Methylation and Why Should You Care?

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