Abstract: Provided herein are Mycobacterium smegmatis porin nanopores, systems that comprise these nanopores, and methods of using and making these nanopores. Such nanopores may be wild-type MspA porins, mutant MspA porins, wild-type MspA paralog porins, wild-type MspA homolog porins, mutant MspA paralog porins, mutant MspA homolog porins, or single-chain Msp porins. Also provided are bacterial strains capable of inducible Msp porin expression.

Abstract: Provided herein are Mycobacterium smegmatis porin nanopores, systems that comprise these nanopores, and methods of using and making these nanopores. Such nanopores may be wild-type MspA porins, mutant MspA porins, wild-type MspA paralog porins, wild-type MspA homolog porins, mutant MspA paralog porins, mutant MspA homolog porins, or single-chain Msp porins. Also provided are bacterial strains capable of inducible Msp porin expression.

Abstract: Provided herein are isolated polypeptides comprising the amino-terminal domain of Mycobacterium tuberculosis porin A (MtpA), wherein the polypeptide is a porin monomer. Also provided are isolated polypeptides comprising the carboxy-terminal domain of Mycobacterium tuberculosis porin A, wherein the polypeptide is a toxin. Also provided are methods of treating or preventing a Mycobacterium tuberculosis (Mtb) infection in a subject with or at risk of developing a Mtb infection. Further provided are chimeric porin polypeptides comprising a first polypeptide comprising an amino-terminal domain of Mycobacterium tuberculosis porin and a second polypeptide comprising an antigen and the use the chimeric porin polypeptides in methods of eliciting an immune response in a subject.

Abstract: Provided herein are Mycobacterium smegmatis porin nanopores, systems that comprise these nanopores, and methods of using and making these nanopores. Such nanopores may be wild-type MspA porins, mutant MspA porins, wild-type MspA paralog porins, wild-type MspA homolog porins, mutant MspA paralog porins, mutant MspA homolog porins, or single-chain Msp porins. Also provided are bacterial strains capable of inducible Msp porin expression.

Abstract: Provided herein are Mycobacterium smegmatis porin nanopores, systems that comprise these nanopores, and methods of using and making these nanopores. Such nanopores may be wild-type MspA porins, mutant MspA porins, wild-type MspA paralog porins, wild-type MspA homolog porins, mutant MspA paralog porins, mutant MspA homolog porins, or single-chain Msp porins. Also provided are bacterial strains capable of inducible Msp porin expression.

Abstract: Provided herein are methods or reactivating a latent Human Immunodeficiency Virus (HIV) infection in a cell. The methods comprise modulating a level of NF-?B activity in the cell by contacting the cell with an agent that produces a transient first increase in the level of NF-?B activity without a second delayed increase in NF-?B activity. Optionally, a second agent is used to prime the reactivation. Also provided herein is an isolated Massilia bacterium or population thereof capable of producing a HIV-1 reactivating factor (HRF). Also provided are methods of culturing the Massilia bacteria. Further provided are methods of reactivating a latent Human Immunodeficiency Virus-1 (HIV-1) infection in a subject comprising administering to the subject a HIV-1 reactivating factor produced by Massilia bacteria, optionally with a priming agent.

Abstract: Provided herein are Mycobacterium smegmatis porin nanopores, systems that comprise these nanopores, and methods of using and making these nanopores. Such nanopores may be wild-type MspA porins, mutant MspA porins, wild-type MspA paralog porins, wild-type MspA homolog porins, mutant MspA paralog porins, mutant MspA homolog porins, or single-chain Msp porins. Also provided are bacterial strains capable of inducible Msp porin expression.

Abstract: Provided herein are methods of reducing drug resistance in Mycobacterium tuberculosis (Mtb). The methods comprise contacting the Mtb with an agent, wherein the agent inhibits the activity of an efflux complex. Also provided are methods of treating Mtb in a subject. The methods comprise administering to the subject an agent that inhibits the activity of an efflux complex; and administering to the subject a tuberculosis treating agent. Further provided is a method of screening for an agent that reduces drug resistance in Mtb. The methods comprise providing an Mtb with a mutant efflux complex; and contacting Mtb with an agent to be tested and a tuberculosis treating agent.