Expression of polypeptides in rod outer segment membranes

• Main Authors: LI, NING, PALCZEWSKI, KRZYSZTOF, BALLESTEROS, JUAN
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2003
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BEER; BIOCHEMISTRY; CARE OF BIRDS, FISHES, INSECTS; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; DERIVATIVES THEREOF; ENZYMOLOGY; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; NEW BREEDS OF ANIMALS; NUCLEIC ACIDS; NUCLEOSIDES; NUCLEOTIDES; ORGANIC CHEMISTRY; PEPTIDES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; SPIRITS; SUGARS; TRAPPING; VINEGAR; WINE

The invention provides a transgene construct, containing a nucleic acid encoding a photoreceptor specific reguliatory sequence, a membrane-associated polypeptide, and a photoreceptor outer segment targeting signal. For example, the invention provides a transgene construct, containing a nucleic acid encoding a rhodopsin promoter, a membrane-associated polypeptide, and a rod outer segment (ROS) targeting signal. In addition, the invention provides a gene targeting construct containing a transgene encoding a polypeptide that contains a rod outer segment (ROS) targeting signal. The transgene is flanked by 5' and 3' DNA sequences that are homologous to the rhodopsin gene. Homologous recombination between the construct and a rhodopsin gene results in operable association between the transgene and a rod-specific regulatory sequence. The invention also provides cells and animals whose genome contain a functional disruption of one or both endogenous rhodopsin gene alleles, and a transgene encoding a polypeptide that c