The disclosure provides compositions comprising at least one assembly comprising a peptide and a major histocompatibility complex (MHC), wherein the peptide is an integral component of the MHC, wherein the peptide is attached to a surface at its C-terminus through a linker and wherein the peptide is synthesized on the surface. In certain embodiments, the compositions comprise a plurality of assemblies in a spatially-ordered array. The disclosure provides methods for making and using these compositions.

The invention relates to methods of identifying compounds that modulate mTORC1 activity in a cell by modulating the activity of SAMTOR, as well as to the use of such identified compounds in the modulation of mTORC1 and the treatment of diseases and conditions characterized by aberrant mTORC1 activity.

The present invention is based, in part, on the discovery of monoclonal and polyclonal antibodies that specifically bind to phosphorylated PD-1, as well as immunoglobulins, polypeptides, nucleic acids thereof, and methods of using such antibodies for diagnostic, prognostic, and therapeutic purposes.

Provided is a method for screening antibodies against a specific antigen epitope, including: Incubating antigens with incorporation of photocrosslinking amino acids(designated as mutant antigen) with antibody library under light irradiation with suitable wavelength and energy, and selecting antibodies that covalently crosslink with the mutant antigen; then the antibodies selected are subjected to affinity maturation against wild-type antigen, and then epitope-directed antibodies obtained.

The NXNL2 gene encodes by alternative splicing for a trophic factor RdCVF2 that enhances the function and the survival of neurons involved in long term memory. Now the inventors demonstrated that the cell surface receptor for the trophic factor RdCVF2 is NPTN65. The set-up of methods that could be used to screen for small molecules, agonists of RdCVF2 signaling in the brain would be suitable for the development of a future metabolic and redox treatment of tauopathies and in particular Alzheimer's disease.

The present invention is based, in part, on the novel discovery of the architecture and assembly pathway of three different classes of mammalian SWI/SNF complexes, compositions comprising the isolated modified SWI/SNF complexes, and methods of screening for modulators of the function and/or stability of same.

Disclosed herein are Ral-antagonist compounds that covalently bind to binding sites in RalA, and efficaciously inhibit Ral activity. The compounds include aryl sulfonyl fluoride compounds of the general structure of wherein X and Y are independently C or N, and R.sub.4 is C.sub.1-C.sub.4 alkyl, —OCH.sub.3, —OCH.sub.2CH.sub.3, —OCH(CH.sub.3).sub.2, —(SO.sub.2)CH.sub.3, —OH, or halo. These compounds expand Ral-inhibiting therapeutic options for treating Ral-driven cancers and one embodiment of the present disclosure is directed to the use of such compounds to treat cancer.

Using chemical proteomics with a potent unique irreversible inhibitor, inventors found that major brain tubulin carboxypeptidase (TCP) is a complex of vasohibin-1 (VASH1) with the Small Vasohibin-Binding Protein (SVBP). VASH1 and its homologue vasohibin-2 (VASH2), when complexed with SVBP, exhibit robust and specific Tyr/Phe carboxypeptidase activity on microtubules. Accordingly inventors are the first to identify the enzymatic activity of vasohibin and vasohibin/SVBP complex. Knock down of vasohibins or SVBP in cultured neurons results in a marked reduction of tyrosinated α-tubulin levels and onset of severe differentiation defects. Furthermore, knock down of vasohibins disrupts neuronal migration in developing mouse neocortex. These results establish vasohibin/SVBP complexes as TCP enzymes. Accordingly, the present invention relates methods and pharmaceutical compositions for treating tubulin carboxypeptidases (TCP) associated diseases such as neurological disorders and cardiovascular diseases with an inhibitor of activity or expression of Vasohibin or Vasohibin/SVBP complex.

The present invention relates to compositions and methods for the modulation RGMb-Neogenin-BMP signaling.

Methods and devices for identifying agents that block binding or activation of peripheral membrane proteins are disclosed.