cellular
N |
• cultured ES cells, MEFs and thymocytes all show normal proliferation and senescence
• ionizing radiation induce cell death of cultured thymocytes and MEFs is similar to wild-type cells
|
• following exposure to 10 Gy ionizing radiation MEFs return to S phase more rapidly indicating a defect in maintenance of the G1 checkpoint
• however, checkpoint initiation is similar to wild-type cells and in the absence of treatment no defects in cell cycle are detected
|
mortality/aging
N |
• normal lifespan
|
nervous system
N |
• no decrease in proliferation of neuronal precursors in the dentate gyrus of the hippocampus or subependyma surrounding the lateral ventricles is detected
• brain morphology is normal
|
reproductive system
N |
• despite high expression of the gene in wild-type gonads, mice are fertile
|
neoplasm