The invention provides novel peptides (e.g., linkers) and polypeptide compositions comprising the linkers (e.g., fusion proteins) and methods of using the polypeptide compositions. Peptides (e.g., linkers) are useful as tags and for engineering fusion proteins (e.g., antigen binding molecules, scFv). Polypeptide linkers described herein facilitate flexibility of linked peptides allowing for proper folding, conformation and reduced immunogenicity.

Compositions and methods for optically-verified, sequence-controlled polymer synthesis are described.

The disclosure is directed to conjugates, e.g. PNA conjugates, as well as methods of employing the conjugates for detecting one or more targets in a biological sample, e.g. a tissue sample.

Selectively controllable cleavable linkers include electrochemically-cleavable linkers, photolabile linkers, thermolabile linkers, chemically-labile linkers, and enzymatically-cleavable linkers. Selective cleavage of individual linkers may be controlled by changing local conditions. Local conditions may be changed by activating electrodes in proximity to the linkers, exposing the linkers to light, heating the linkers, or applying chemicals. Selective cleaving of enzymatically-cleavable linkers may be controlled by designing the sequences of different sets of the individual linkers to respond to different enzymes. Cleavable linkers may be used to attach polymers to a solid substrate. Selective cleavage of the linkers enables release of specific polymers from the solid substrate. Cleavable linkers may also be used to attach protecting groups to the ends of growing polymers. The protecting groups may be selectively removed by cleavage of the linkers to enable growth of specific polymers.

The present invention relates to a pharmaceutical composition for preventing or treating dementia, containing a nucleic acid complex in which a carrier peptide nucleic acid and a bioactive peptide nucleic acid having a sequence for binding to a NLRP3 gene are complementarily bound. The nucleic acid complex according to the present invention has a blood-brain barrier penetration ability and can effectively inhibit expression and phosphorylation of the protein of the NLRP3 gene and tau, which a lower-level gene, and thus is useful in the prevention or treatment of dementia.

The present disclosure relates to compounds useful for the detection or modulation of target nucleic acids, including DNA and RNA. The present disclosure further relates to methods for treatment of trinucleotide repeat disorders, which can include administration of oligonucleotide analogues that can bind pathogenic nucleotide repeats in DNA or RNA.

Described herein are novel divalent nucleobases that each bind two nucleic acid strands, matched or mismatched when incorporated into a nucleic acid or nucleic acid analog backbone (a genetic recognition reagent, or genetic recognition reagent). In one embodiment, the genetic recognition reagent is a peptide nucleic acid (PNA) or gamma PNA (γPNA) oligomer. Uses of the divalent nucleobases and monomers and genetic recognition reagents containing the divalent nucleobases also are provided.

Disclosed herein are molecules and pharmaceutical compositions that induce an insertion, deletion, duplication, or alteration in an incorrectly spliced mRNA transcript to induce exon skipping or exon inclusion. Also described herein include methods for treating a disease or disorder that comprises a molecule or a pharmaceutical composition that induces an insertion, deletion, duplication, or alteration in an incorrectly spliced mRNA transcript to induce exon skipping or exon inclusion.

Disclosed herein are molecules and pharmaceutical compositions that induce an insertion, deletion, duplication, or alteration in an incorrectly spliced mRNA transcript to induce exon skipping or exon inclusion. Also described herein include methods for treating a disease or disorder that comprises a molecule or a pharmaceutical composition that induces an insertion, deletion, duplication, or alteration in an incorrectly spliced mRNA transcript to induce exon skipping or exon inclusion.

Provided herein are single-stranded tile (SST) structures prepared from and comprising single-stranded γPNA (ss-γPNA) strands, along with methods of making an SST structure from single-stranded γPNA (ss-γPNA) strands.