| Type | MGI:General | Description | homozygotes display decreased L1 staining in premyelinated axons of long fiber tracts, including the corpus callosum, fimbria, and internal capsule in the brain, and pyramidal tracts and lateral columns of the spinal cord L1 staining is unreduced in the mutant optic nerve at P1-P3 but disappears by P7, although the optic nerve itself is still present |
