ALB and Hypocholesterolemia: This striking hypocholesterolemia phenotype is sustained through at least 1 year of age (Figure 2—figure supplement 2), with no difference in body mass between Surf4fl/fl Alb-Cre- and Surf4fl/fl Alb-Cre+ mice (Figure 2—figure supplement 2A and Figure 2—figure supplement 2C).