lmn-1 encodes the sole C. elegans nuclear lamin; lmn-1 is an essential gene that is required for a number of nuclear processes, including chromatin organization, cell cycle progression, chromosome segregation, and nuclear pore complex spacing; LMN-1 is also required for nuclear envelope localization of EMR-1/Emerin during early development; LMN-1 localizes to the nuclear periphery of all cell types except sperm, and in embryonic and some adult cells is visible in the nuclear interior; LMN-1 binds mitotic chromosomes and histone H2A in a manner that requires its predicted nuclear localization signal, KRRR.
Enables histone binding activity; identical protein binding activity; and structural molecule activity. Involved in several processes, including cellular localization; determination of adult lifespan; and regulation of cell cycle. Located in nuclear envelope and nuclear periphery. Expressed in several structures, including ventral cord blast cell. Used to study Emery-Dreifuss muscular dystrophy; congenital muscular dystrophy; and progeria. Human ortholog(s) of this gene implicated in several diseases, including Charcot-Marie-Tooth disease type 2B1; autosomal dominant Emery-Dreifuss muscular dystrophy 2; autosomal recessive Emery-Dreifuss muscular dystrophy 3; brain disease (multiple); congenital muscular dystrophy due to LMNA mutation; and intrinsic cardiomyopathy (multiple). Is an ortholog of human LMNA (lamin A/C).
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.