Abstract: Described herein are muscle-specific targeting moieties and compositions including the muscle specific targeting motifs. Also described herein are uses of the muscle-specific targeting motifs and compositions including the muscle specific targeting moieties. In some embodiments, the muscle-specific targeting moieties and compositions including the muscle specific targeting moieties can be used to direct delivery of a cargo to a muscle cell.

Abstract: Described in several exemplary embodiments are compositions including a targeting moiety effective to target a central nervous system cell and formulations thereof. In certain embodiments, the targeting moiety is composed of a n-mer insert containing or being composed only of a P-motif. Also described in certain example embodiments are vector systems configured to generate polypeptides containing the one or more targeting moieties. Also described herein are methods of generating a targeting moiety effective to target a central nervous system cell and using the compositions containing the targeting moieties described herein, such as to deliver a cargo to a subject and/or treat a central nervous system disease, disorder, or system thereof.

Abstract: Described herein are muscle-specific targeting moieties and compositions including the muscle specific targeting motifs. Also described herein are uses of the muscle-specific targeting motifs and compositions including the muscle specific targeting moieties. In some embodiments, the muscle-specific targeting moieties and compositions including the muscle specific targeting moieties can be used to direct delivery of a cargo to a muscle cell.

Abstract: Embodiments disclosed herein provide methods of using synthetic DNA spike-ins (SDSIs) to detect, prevent, and quantify contamination in amplicon sequencing. These embodiments may, but are not limited to, reveal sample swaps, intra-batch contamination, and, on a larger scale, intra-laboratory contamination. Embodiments disclosed herein also provide synthetic DNA spike-ins for use in amplicon-based sequencing methods.

Abstract: Described herein are muscle-specific targeting moieties and compositions including the muscle specific targeting motifs. Also described herein are uses of the muscle-specific targeting motifs and compositions including the muscle specific targeting moieties. In some embodiments, the muscle-specific targeting moieties and compositions including the muscle specific targeting moieties can be used to direct delivery of a cargo to a muscle cell.