The present invention relates to reporter protein fusion antibodies, transgenic animals expressing the same, and methods of using the reporter protein fusion antibodies.

High-throughput methods for screening large populations of variant proteins are provided. The methods utilize large-scale arrays of microcapillaries, where each microcapillary comprises a solution containing a variant protein, an immobilized target molecule, and a reporter element. Immobilized target molecules may include any molecule of interest, including proteins, nucleic acids, carbohydrates, and other biomolecules. The association of a variant protein with a molecular target is assessed by measuring a signal from the reporter element. The contents of microcapillaries identified in the assays as containing variant proteins of interest can be isolated, and cells expressing the variant proteins of interest can be characterized. Also provided are systems for performing the disclosed screening methods.

The invention generally relates to methods for universal target capture.

The present invention relates to a method for identifying specific binding partners (e.g. antibodies or antibody mimetics) which bind to a desired target polypeptide. In particular, the method involves expressing a library of antibodies or antibody mimetics in a population of mammalian cells, wherein each cell in the population of cells displays the target polypeptide on the outer surface of the cell, and identifying or isolating cells within the population of cells to which antibodies or antibody mimetics are bound.

Methods for characterizing protein complexes formed between protein drug products and soluble ligands are provided herein. The disclosed methods can determine the size, heterogeneity, and conformation of protein complexes.

The present application provides arrays for use in immunosignaturing and quality control of such arrays. Also disclosed are peptide arrays and uses thereof for diagnostics, therapeutics and research.

The present invention provides assays and assay systems for use in spatially encoded biological assays. The invention provides an assay system comprising an assay capable of high levels of multiplexing where reagents are provided to a biological sample in defined spatial patterns; instrumentation capable of controlled delivery of reagents according to the spatial patterns; and a decoding scheme providing a readout that is digital in nature.

The present invention provides assays and assay systems for use in spatially encoded biological assays. The invention provides an assay system comprising an assay capable of high levels of multiplexing where reagents are provided to a biological sample in defined spatial patterns; instrumentation capable of controlled delivery of reagents according to the spatial patterns; and a decoding scheme providing a readout that is digital in nature.

Methods, devices, and systems are disclosed for performing high throughput analysis of conformational change in biological molecules or other biological entities using surface-selective nonlinear optical detection techniques.

Research tool assay for identifying a specific modulator of GNAI, compositions and methods of use. The assay includes combining a drug candidate with GNAI and a C-terminal GIV peptide and determining if the drug candidate inhibits GNAI interaction with the C-terminal GIV peptide; and combining the drug candidate with GNAI and a DAPLE peptide and determining if the drug candidate inhibits GNAI interaction with DAPLE peptide. Also provided are compositions and methods of treatment relating to the same.