The present invention relates to the use of a particle, including a virus-like particle (VLP), for the discovery and analysis of protein-protein interactions that are modulated by small molecules.

This disclosure relates to a virus-like particle in which a small molecule-protein complex is entrapped, ensuring the formation of the small molecule-protein complex under physiological conditions, while protecting the small molecule-protein complex during purification and identification. The disclosure further relates to the use of such virus-like particle for the isolation and identification of small molecule-protein complexes.

The present disclosure relates to recombinant HIV Env polypeptides and their use in the treatment and prevention of HIV/AIDS.

Embodiments of recombinant HIV-1 gp120 proteins that contain a V1 deletion are disclosed. Also provided are gp140, gp145, and gp160 proteins containing the V1 deletion, as well as HIV-1 Env ectodomain trimers containing protomers containing the V1 deletion. Nucleic acid molecules encoding these proteins are also provided. In several embodiments, the disclosed recombinant HIV-1 proteins and/or nucleic acid molecules can be used to generate an immune response to HIV-1 in a subject, for example, to treat or prevent an HIV-1 infection in the subject.

Described herein are Bovine immunodeficiency virus gag protein (“Bgag”) recombinant virus like particles (“VLPs”) comprising one or more different types of target pathogen proteins. Also described, are compositions comprising the novel Bgag VLPs and the methods of making and using the novel Bgag VLPs.

Embodiments of immunogens based on the HIV-1 Env fusion peptide and methods of their use and production are disclosed. Nucleic acid molecules encoding the immunogens are also provided. In several embodiments, the immunogens can be used to generate an immune response to HIV-1 Env in a subject, for example, to treat or prevent an HIV-1 infection in the subject.

Provided herein are multivalent particles and compositions of multivalent particles for blocking viral infection.

The present invention provides a virus-like particle (VLP) having a viral envelope which comprises: (i) a membrane protein comprising the extracellular domain of CD86; and (ii) a CD3-binding membrane protein. The VLP may be used to activate T cells prior to viral transduction.

Provided herein are methods and compositions for inducing in a subject abroad neutralizing antibody response to human immunodeficiency virus (HIV) infection.

We have developed a series of Ebola vims envelope glycoprotein (EboGP)-based chimeric fusion proteins that are still able to maintain an efficient EboGP-mediated virus entry in various cell types including human antigen-presenting cells (APCs) while presenting large viral polypeptides, such as HIV Env v3-v5 domain (as large as 241 aa), at the apex and the sides of each EboGP monomer to elicit robust host immune responses. This invention demonstrates the feasibility of an EboGP-based chimeric fusion technology as a novel vaccine approach against different microbial pathogens, including that in human and animals, and against cancers.