Fig. 8. The synaptic zone remains broader in Musk-/-; MCK-Musk
and Musk-/-; MCK-MMT adult mice. As a consequence of
delayed expression from the MCK gene, the axon termination zone is
wider in MCK-/-; MCK-Musk and MCK-/-;
MCK-MMT embryos than in wild-type embryos, and this broader termination
zone is retained in adult mice. Wholemounts of diaphragm muscles from
3-week-old mice were stained with antibodies to neurofilament (NF) and
synaptophysin (Syn) to label axons and presynaptic nerve terminals (green),
and with Texas-Red
-Bungarotoxin (TR-
-BGT) to label AChRs
(red).