The invention provides methods for reprogramming somatic cells to generate multipotent or pluripotent cells. Such methods are useful for a variety of purposes, including treating or preventing a medical condition in an individual. The invention further provides methods for identifying an agent that reprograms somatic cells to a less differentiated state.

A method of modulating some or all copies of a gene in a cell is provided including introducing into a cell one or more ribonucleic acid (RNA) sequences that comprise a portion that is complementary to all or a portion of each of the one or more target nucleic acid sequences, and a nucleic acid sequence that encodes a Cas protein and maintaining the cells under conditions in which the Cas protein is expressed and the Cas protein binds and modulates the one or more target nucleic acid sequences in the cell.

The present disclosure relates to a novel murine parvovirus, sequences encoded thereby, and applications therefor. In one embodiment the disclosure provides a method for detecting the presence of a parvovirus in a sample, comprising detecting one or more nucleic acids or polypeptides derived from the parvovirus, or antibodies against the parvovirus, in the sample. Also provided are vectors and host cells comprising sequences encoded by the parvovirus and related sequences. Also provided are animal models of kidney disease associated with infection by the parvovirus.

It was found that DUXC family proteins were efficient activators of EGA and that DUXC proteins could be used in methods in the reprogramming of cells to a totipotent state and to increase the efficiency of somatic cell nuclear transfer (SCNT). Accordingly, aspects of the disclosure relate to a method for reprogramming a cell into a totipotent state, the method comprising expressing a DUXC family protein in the cell. Further aspects of the disclosure relate to a method for making a host cell nuclear transfer (SCNT) embryo comprising expressing a DUXC protein in a somatic cell and transferring the nucleus of the somatic cell to an enucleated oocyte, thereby making a SCNT embryo.

The present invention relates generally to the field of somatic cell nuclear transfer (SCNT) and to the creation of cloned animals and cells. The disclosure relates to a method of cloning a mammal, obtaining pluripotent cells such as embryonic stem cells, or for reprogramming a mammalian cell using an oocyte and a fertilized embryo.

A method of modulating some or all copies of a gene in a cell is provided including introducing into a cell one or more ribonucleic acid (RNA) sequences that comprise a portion that is complementary to all or a portion of each of the one or more target nucleic acid sequences, and a nucleic acid sequence that encodes a Cas protein and maintaining the cells under conditions in which the Cas protein is expressed and the Cas protein binds and modulates the one or more target nucleic acid sequences in the cell.

A genetically modified livestock animal, and methods of making and using the same, the animal comprising a genetic modification to disrupt a target gene selectively involved in gametogenesis, wherein the disruption of the target gene prevents formation of functional gametes of the animal. Animals that create progeny with donor genetics, and methods of making and using the same. Cells, and methods of making and using the cells, with a genetic modification to disrupt a target gene selectively involved in gametogenesis.

We disclose that a target organ such as kidney can be regenerated by complementing a developmental deficiency leading to a lack of development of the target organ in a non-human first mammal by injecting a somatic cell nuclear transfer cell (SCNT cell) into a developed blastocyst of the non-human first mammal. We also disclose a method for producing a target organ, using an SCNT cell, in a living body of a non-human first mammal having an abnormality associated with a lack of development of the target organ in a development stage, the target organ produced being derived from a second mammal that is an individual different from the non-human first mammal.

Compositions and methods for genetically modifying felines or feline cells are described. The compositions and methods are useful for knocking out all or a portion of a Fel d 1 gene from a feline genome. Feline cells and organisms in which all or a portion of the Fel d 1 gene is knocked out are also described. The compositions and methods may include reagents and procedures for CRISPR-Cas9-mediated genomic editing of Fel d 1.

The invention provides methods for reprogramming somatic cells to generate multipotent or pluripotent cells. Such methods are useful for a variety of purposes, including treating or preventing a medical condition in an individual. The invention further provides methods for identifying an agent that reprograms somatic cells to a less differentiated state.