The apr-1 gene encodes an ortholog of human APC (OMIM:175100, mutated in familial adenomatous polyposis) that is required for germline fertility, the control of homeodomain expression (CEH-13 and LIN-39) during embryogenesis and vulval development, and for the migration and elongation of hypodermal cells during embryo morphogenesis; APR-1 is thought to reside in adherens junctions, while also stimulating two beta-catenins in Wnt signalling (HMP-2 in migrating epithelial cells, and BAR-1 in the vulval precursor cells); however, APR-1 also binds PRY-1/axin, and with PRY-1 inhibits RAS-independent Wnt induction of LIN-39; APR-1 along with MOM-5/Frizzled receptor and GSK-3 kinase is also required for the engulfment of apoptotic cells and migration of the distal tip cell in the gonad, indicating that Wnt signaling can regulate cytoskeletal rearrangements via CED-10/RAC; phosphorylated APR-1 binds CED-2/CrkII in yeast two hybrid screens, this binding and genetic studies suggest that APR-1 and MOM-5 activate the CED-2/5/12 branch of the engulfment pathway.
Enables beta-catenin binding activity. Involved in several processes, including embryonic morphogenesis; regulation of Wnt signaling pathway; and regulation of multicellular organismal development. Located in adherens junction; cell cortex; and nucleus. Expressed in several structures, including P3.p hermaphrodite; P4.p hermaphrodite; P8.p hermaphrodite; distal tip cell; and excretory cell. Human ortholog(s) of this gene implicated in several diseases, including Alzheimer's disease; Sotos syndrome 3; carcinoma (multiple); and gastrointestinal system cancer (multiple). Is an ortholog of human APC (APC regulator of WNT signaling pathway) and APC2 (APC regulator of WNT signaling pathway 2).
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.