Prognosys Biosciences, Inc.

John Andrew Altin

Mark S Chee

Igor A Kozlov

Petr Capek

Provided herein are compositions and methods for detecting the binding of a peptide to an MHC molecule, and the binding of a peptide:MHC complex to a TCR. In preferred embodiments, the compositions and methods are in a highly-multiplexed way. The compositions and methods disclosed herein can be used to provide direct information on which peptides are bound to an MHC molecule. Also provided is a method for simultaneously detecting a large number of peptides for binding to an MHC molecule and/or a T cell. A method for detecting competitive binding of a large number of peptides to an MHC molecule and/or a T cell is also disclosed. Also provided herein is a method for simultaneously detecting a large number of specific TCRs. The compositions and methods of the present invention are useful for vaccine design, research and monitoring of autoimmune and infectious disease, immunogenicity testing of therapeutics, and tissue typing.

Methods for detecting peptide/MHC/TCR binding

The present disclosure provides polynucleotide conjugates, methods, and assay systems for use in detecting the presence, absence, and/or amount of an analyte in a sample. Various polynucleotide conjugates, conjugate pairs, sets, libraries, and assay systems comprising the same are disclosed. In particular, methods and assay systems for antibody detection and analysis are provided. For example, assays capable of high levels of multiplexing are used for antibody detection and analysis in a biological sample, e.g., Lyme disease patient samples. The presently disclosed polynucleotide conjugates, methods, and assay systems can be used to provide sensitive and reliable diagnosis, even at early stages of a disease or condition. Use for monitoring disease progression and prognosis is also disclosed.

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John Andrew Altin