decreased body fat mass, decreased body length, decreased body mass index, decreased brown adipose tissue mass, decreased circulating glucose level, decreased circulating insulin-like growth factor I level, decreased food intake, decreased grip strength, decreased lean body mass, decreased locomotor activity, decreased oxygen consumption, decreased white adipose tissue amount, enhanced behavioral response to xenobiotic, growth/size/body region phenotype, homeostasis/metabolism phenotype, hunched posture, impaired behavioral response to xenobiotic, impaired passive avoidance behavior, increased basal metabolism, increased circulating ghrelin level, increased circulating glucose level, increased circulating growth hormone level, increased coping response, increased energy expenditure, increased epididymal fat pad weight, increased food intake, increased grooming behavior, increased oxygen consumption, increased percent body fat/body weight, increased physiological sensitivity to xenobiotic, increased renal fat pad weight, increased sensitivity to xenobiotic induced morbidity/mortality, increased susceptibility to age related obesity, increased susceptibility to diet-induced obesity, increased susceptibility to pharmacologically induced seizures, increased white adipose tissue amount, lethality at weaning, incomplete penetrance, mottled coat, nervous system phenotype, postnatal lethality, incomplete penetrance, premature death, reduced long term potentiation, slow postnatal weight gain, sporadic seizures, tonic seizures