dsl-1 encodes a secreted protein with a single DSL and EGF domain inseries, resembling Delta/LAG-2; DSL-1, with APX-1 and LAG-2, iscollectively required for LIN-12/Notch-mediated lateral signalling duringpostembryonic vulval development; DSL-1, when misexpressed by lag-2sequences, can rescue the larval-lethal and anchor cell phenotypes oflag-2(q420ts); dsl-1(RNAi) animals have abnormal vulvae in a geneticbackground sensitized for lateral signalling defects; dsl-1(ok810)mutants, while viable and fertile, have a 4% penetrant defect in lateralsignaling, which exceeds 13% with apx-1 and lag-2 RNAi; dsl-1 is stronglytranscribed in P6.p cells; SUR-2 regulates dsl-1 along with apx-1 andlag-2; DSL-1 belongs to a nematode-specific family of Delta/LAG-2-likeproteins that includes DSL-2, -3, -5, -6, and -7.
Enables Notch binding activity. Predicted to be involved in cell fate specification. Predicted to be located in extracellular region and membrane. Expressed in several structures, including P6.paa; P6.pap; P6.ppa; P6.ppp; and vulval cell.
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.