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zcIs4 [hsp-4::GFP] V. vit-4(ac4) is a dominant allele that causes ER stress. Since vit-4 is expressed only in adult stage, ER stress is induced only in adult stage. The levels of GFP expression from zcIs4 [hsp-4::GFP] reporter indicates the level of ER stress. Reference: Singh J & Aballay A. MBio. 2017 May 30;8(3). pii: e00778-17. doi: 10.1128/mBio.00778-17.

Heterozygous. Homozygous lethal deletion chromosome balanced by bli-4- and GFP-marked translocation. Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP tm4743 homozygotes (Egl, Mel, adult-onset sterility). Homozygous hT2[bli-4 let-? qIs48] inviable. Pick WT GFP and check for correct segregation of progeny to maintain. Only heterozygous animals should propagate. aph-1(tm4743) deletion allele was generated by the National BioResource Project of Japan, part of the International C. elegans Gene Knockout Consortium. Reference: Brinkley DM, et al. Genetics. 2024 Jul 8;227(3):iyae076. doi: 10.1093/genetics/iyae076. PMID: 38717968.