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For the current study, Shirani analyzed tumor tissue samples from FLC patients using mass spectrometry, biochemistry, and immunofluorescence to quantify the level of the protein in patients' tumor tissue.

They plan to use McPherson’s strategy to assess more antibodies against other targets, gauging performance across three common assays: immunoblot, immunoprecipitation and immunofluorescence.

Another type of quick influenza test known as an immunofluorescence assay has similar reliability problems.

The authors of the Cell Atlas, led by Mathias Uhlen of the Royal Institute of Technology, in Stockholm, have pinned 12,051 proteins down in this way using immunofluorescence.