therefore , both the number of introns and their arrangement in the genes coding nf-l and nf-m contrast sharply with the number and arrangement of introns in the genes of known sequence , encoding other members of the intermediate filament multigene family ( desmin , vimentin , glial fibrillary acidic protein and the acidic and basic keratins ) ;
C0021770
intermediate filament
C0042666
vimentin