ltSi910 [elt-2p::vhhGFP4::zif-1::operon-linker::mCherry::his-11::tbb-2 3'UTR + Cbr-unc-119(+)] II. Intestinal-specific expression of anti-GFP nanobody fused to ZIF-1 mediates intestine-specific degradation of GFP-tagged proteins (mediated by recruited ZIF-1 but NOT requiring ZF1 tags). Can be combined with endogenous locus GFP-tagging or rescue of a null mutant with a GFP fusion to examine intestine-specific functions of target genes. Reference: Wang S, et al. Development. 2017 Jun 15. pii: dev.150094. doi: 10.1242/dev.150094.