First Author | Lee JM | Year | 2014 |
Journal | Nucleus | Volume | 5 |
Issue | 4 | Pages | 287-92 |
PubMed ID | 25482116 | Mgi Jnum | J:309479 |
Mgi Id | MGI:6757284 | Doi | 10.4161/nucl.29615 |
Citation | Lee JM, et al. (2014) Do lamin B1 and lamin B2 have redundant functions?. Nucleus 5(4):287-92 |
abstractText | Lamins B1 and B2 have a high degree of sequence similarity and are widely expressed from the earliest stages of development. Studies of Lmnb1 and Lmnb2 knockout mice revealed that both of the B-type lamins are crucial for neuronal migration in the developing brain. These observations naturally posed the question of whether the two B-type lamins might play redundant functions in the development of the brain. To explore that issue, Lee and coworkers generated "reciprocal knock-in mice" (knock-in mice that produce lamin B1 from the Lmnb2 locus and knock-in mice that produce lamin B2 from the Lmnb1 locus). Both lines of knock-in mice manifested neurodevelopmental abnormalities similar to those in conventional knockout mice, indicating that lamins B1 and B2 have unique functions and that increased production of one B-type lamin cannot compensate for the loss of the other. |