Gene Information: meg-4

Namemeg-4 View on WormBase
Species C. elegans
SequenceC36C9.1
Genetic positionX:-17.77 +/- 0.000 cM
Genomic positionX: 1682954..1686419

Strains carrying this gene

Strain Genotype Description
JH3149 ltIs37 IV; meg-3(tm4259) meg-4(ax2026) X; axIs1522. axIs1522 [pie-1p::GFP::pgl-1::pgl-1 3'UTR + unc-119(+)]. ltIs37 [pie-1p::mCherry::his-58 + unc-119(+)] IV. Maintain at 25C and pick non-Unc to retain transgene expression. Reference: Wang JT, et al. eLife 2014;3:e04591.
JH3225 meg-3(tm4259) meg-4(ax2026) X. P granule defect. High sterility. Reference: Wang JT, et al. eLife 2014;3:e04591.
JH3247 meg-4(ax2080) X. C-terminal FLAG insertion in endogenous meg-4 locus. Reference: Wang JT, et al. eLife 2014;3:e04591.
JH3248 meg-4(ax2081) X. Deletion removing 733 base pairs upstream of start and the first 2565 bases of the endogenous meg-4 locus. Reference: Wang JT, et al. eLife 2014;3:e04591.
JH3475 meg-3(ax3055) meg-4(ax3052) X. Embryonic P granules not segregated, 30% maternal effect sterility on average, RNAi insensitivity. meg-3(ax3055) and meg-4(ax3052) are precise deletions of the entire coding sequence made by CRISPR/Cas9, designed to be cut again to make insertions at the endogenous locus. References: Smith, J. et al. Elife. 2016 Dec 3;5:e21337. doi: 10.7554/eLife.21337. PMID: 27914198 Ouyang JPT, et al. Dev Cell. 2019 Sep 23;50(6):716-728.e6. PMID: 31402283
JH3477 meg-3(ax3051[meg-3::OLLAS]) meg-4(ax3052) X. P granule size reduced, detection of MEG-3 by anti-OLLAS antibody. References: Smith, J. et al. Elife. 2016 Dec 3;5:e21337. doi: 10.7554/eLife.21337. PMID: 27914198 Schmidt H, bioRxiv 2020.10.15.340570 (2020) doi:10.1101/2020.10.15.340570.
JH3553 meg-3(ax4503[del(1-544)::OLLAS]) meg-4(ax4504) X. Description: 20% maternal effect sterility on average, RNAi insensitivity, MEG-3 does not form cytoplasmic gradient. meg-3(ax4503) is an in-frame deletion in the endogenous meg-3 locus removing amino acids (1-544); MEG-3 does not form a cytoplasmic gradient but does still form granules in early embryos and co-localizes with PGL-3. References: Smith, J. et al. Elife. 2016 Dec 3;5:e21337. doi: 10.7554/eLife.21337. PMID: 27914198 Schmidt H, bioRxiv 2020.10.15.340570 (2020) doi:10.1101/2020.10.15.340570.
JH3861 meg-3(ax4502[meg-3(F705A,Y708A,Y713A, N725A)::OLLAS]) meg-4(ax3052) X. 20% Maternal effect sterility on average, embryonic P granule defect, RNAi insensitivity. Engineered mutations in the endogenous meg-3 locus disrupt the binding and localization of PGL proteins to P granules in the early embryo while MEG-3 itself is still forms an asymmetric cytoplasmic gradient and granules. References: Smith, J. et al. Elife. 2016 Dec 3;5:e21337. doi: 10.7554/eLife.21337. PMID: 27914198 Schmidt H, bioRxiv 2020.10.15.340570 (2020) doi:10.1101/2020.10.15.340570.