Transgenic animals with disrupted npy y1 receptor genes

摘要

The present invention is directed to transgenic animals which have been engineered by homologous recombination to be deficient in the expression of the neuropeptide Y Y1 receptor. The invention encompasses the DNA constructs and engineered embryonic stem cells used to produce the animals, the transgenic animals themselves, and assays which utilize either the animals or tissues derived from the animals.