Molecules, including antibodies and antigen-binding fragments thereof that specifically bind to a linker peptide, and methods of producing and using the described antibodies and antigen-binding fragments are presented herein. Also presented herein methods of generating antibodies that specifically bind to an immunorecessive epitope.

There is provided herein a method for identifying and/or recovering at least one genetically encoded affinity reagent specific for a target molecule by screening using molecular display in conjunction with the sequencing of positive and negative selection pools from the screen.

Described are point of care tests to detect circulating neutralizing antibodies against SARS-CoV-2 or another virus in a sample obtained from patients. The tests comprise lateral flow test strips and methods of use thereof.

Methods to rapidly and accurately detect, characterize, measure, and quantify site-specific antibody drug conjugates, that may be present in pre-clinical animal biological samples, or human biological samples, including plasma/serum and tissue samples.

The subject invention pertains to methods and compositions to stabilize antibodies for deep immunolabeling and tissue imaging. The antibodies can be stabilized with the addition of antigen-binding fragments of immunoglobulins and cross-linkers and incubated in appropriate buffered conditions.

Methods, kits and compounds are provided that relate to the diagnosis, treatment, and/or prevention of preeclampsia.

A method of identifying of amino-acid residues on a target protein that form a binding site of a molecule of interest. Such method relies on selection of relevant patches of solvent-accessible residues and testing of an array of mutated proteins for changes of binding properties. Such method is useful for determining binding sites (epitopes) of antibodies, ligands and related molecules.

The presently disclosed subject matter relates to a method for characterizing a protein. The method can comprise disposing a protein in a digestion buffer; disposing a hydrolyzing agent inhibitor in the digestion buffer; passing the digestion buffer comprising said protein and said hydrolyzing agent inhibitor through a reaction chamber comprising at least one hydrolyzing agent, wherein said protein contacts said hydrolyzing agent in the presence of said inhibitor and is present in the chamber for a period of time (t) sufficient to produce protein fragments and provide digestion of said protein in the chamber, wherein the passing of the digestion buffer comprising the protein and the hydrolyzing agent inhibitor through the chamber is done at an adjustable flow rate; and performing multi-segment liquid chromatography tandem mass spectrometry (LC MS/MS) to characterize the protein.

Provided herein are methods of identifying a group of complementarity determining region (CDR)3, 2 and/or 1 nanobody amino acid sequences (CDR3, CDR2 and/or CDR1 sequences) wherein a reduced number of the CDR3, CDR2 and/or CDR1 sequences are false positives as compared to a control, methods for determining antigen affinity of nanobody peptide sequences, and related methods for training a deep learning model.

Herein is reported a method for selecting an antibody with a systematic clearance in cynomolgus monkeys of less than 8 mL/kg/day comprising the steps of measuring the retention time of the antibody on performing an FcRn affinity chromatography with a positive linear pH gradient and on a heparin affinity chromatography with a positive linear conductivity/salt gradient, and selecting an antibody that has a relative retention time on the FcRn affinity chromatography column is less than 1.78 times the retention time difference between peaks 2 and 3 the retention time of preparation of an oxidized anti-Her3 antibody of SEQ ID NO: 03 and 04, and a relative retention time on the heparin affinity chromatography column is less than 0.87 times the retention time of an anti-pTau antibody of SEQ ID NO: 01 and 02.