INNNOVATION
Cckbrcre knock-in mice have the endogenous cholecystokinin B receptor promoter/enhancer sequences directing expression of Cre recombinase. These mice are a Cre-lox tool allowing Cre recombination in Cckbr-expressing cells/tissues (including neurons of the ventromedial nucleus of the hypothalamus), and may be useful in studying feeding behavior, obesity and diabetes.