IFA-1 encodes an essential intermediate filament protein that is coexpressed with the essential IF protein IFB-1; IFA-1 is required for survival past the L1 larva stage, and a normal intestine; IFA-1 forms heteropolymeric intermediate filaments in vitro with an equimolar mixture of IFB-1; IFA-1 is predicted to function as a structural component of the cytoskeleton, and is required for larval development and normal intestinal morphology; ifa-1 is expressed in amphid sensory neurons, in tail neurons and other unidentified neurons, some pharyngeal muscles, the pharyngeal-intestinal valve, the vulva, and the rectum.
Predicted to be a structural constituent of cytoskeleton. Predicted to be involved in cellular localization; heterochromatin formation; and nucleus organization. Located in intermediate filament. Expressed in several structures, including egg-laying apparatus; excretory cell; neurons; pharyngeal-intestinal valve; and pharynx. Human ortholog(s) of this gene implicated in partial lipodystrophy; primary autosomal recessive microcephaly; and progressive myoclonus epilepsy 9. Is an ortholog of human LMNB2 (lamin B2).
Map position created from combination of previous interpolated map position (based on known location of sequence) and allele information. Therefore this is not a genetic map position based on recombination frequencies or genetic experiments. This was done on advice of the CGC.