[Gallegos M, Zhang B] fbf-1(RNAi) animals produce excess sperm and no oocytes (Mog phenotype). Encodes fem-3 PME RNA binding protein, 91% identical to FBF-2
fbf-1 encodes an RNA-binding protein that is one of 12 C. elegans members of the PUF family (Pumilio and FBF) of translational regulators; FBF-1 is nearly identical to FBF-2 with which it is largely redundant in regulating two aspects of germline development: 1) maintenance of stem cell proliferation, and 2) the hermaphroditic switch between spermatogenesis and oogenesis; FBF-1 also plays a role in regulating adaptation in the AWC chemosensory neuron by binding and enhancing translation of the egl-4 mRNA; in maintaining germline stem cells, the FBF proteins, acting through NOS-3, negatively regulate the activity of gld-1 mRNA, which encodes a translational repressor required for meiotic entry; in regulating the sperm-to-oocyte switch, the FBFs act downstream of GLD-3 to negatively regulate the activity of fem-3 mRNA, which encodes a novel protein required for germline sex determination; consistent with their role in germline development, FBF-1 and FBF-2 are expressed in the germline cytoplasm, becoming enriched in the mitotic region during the L4 larval and adult stages.
Enables mRNA 3'-UTR binding activity. Involved in several processes, including germline cell cycle switching, mitotic to meiotic cell cycle; olfactory learning; and regulation of gene expression. Located in germ cell nucleus and perinuclear region of cytoplasm. Expressed in germ line.
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.