Search Strains

Bacteria. CeMbio Collection. Natural isolate from Kiel, Schleswig-Holstein, Germany. LB, 20-26C. Slow grower. More information about collection on the project's wiki: http://www.cembio.uni-kiel.de/. 16S rRNA primer: 27F/1492R. Representative 16S rRNA sequence (5 copies are present in the genome, all very similar): CTTGAGAGTTTGATCCTGGCTCAGAACGAACGCTGGCGGCAGGCTTAACACATGCAAGTCGAACGGTCTCTTCGGAGGCAGTGGCAGACGGGTGAGTAACGCGTGGGAATCTACCTTTTGCTACGGAACAACAGTTGGAAACGACTGCTAATACCGTATGTGTCCTTCGGGAGAAAGATTTATCGGCAAAGGATGAGCCCGCGTTGGATTAGCTAGTTGGTAGGGTAAAGGCCTACCAAGGCGACGATCCATAGCTGGTCTGAGAGGATGATCAGCCACACTGGGACTGAGACACGGCCCAGACTCCTACGGGAGGCAGCAGTGGGGAATATTGGACAATGGGCGCAAGCCTGATCCAGCCATGCCGCGTGAGTGATGAAGGCCCTAGGGTTGTAAAGCTCTTTCACCGGTGAAGATAATGACGGTAACCGGAGAAGAAGCCCCGGCTAACTTCGTGCCAGCAGCCGCGGTAATACGAAGGGGGCTAGCGTTGTTCGGATTTACTGGGCGTAAAGCGCACGTAGGCGGACTTTTAAGTCAGGGGTGAAATCCCGGGGCTCAACCCCGGAACTGCCTTTGATACTGGAAGTCTTGAGTATGGTAGAGGTGAGTGGAATTCCGAGTGTAGAGGTGAAATTCGTAGATATTCGGAGGAACACCAGTGGCGAAGGCGGCTCACTGGACCATTACTGACGCTGAGGTGCGAAAGCGTGGGGAGCAAACAGGATTAGATACCCTGGTAGTCCACGCCGTAAACGATGAATGTTAGCCGTTGGGGAGTTTACTCTTCGGTGGCGCAGCTAACGCATTAAACATTCCGCCTGGGGAGTACGGTCGCAAGATTAAAACTCAAAGGAATTGACGGGGGCCCGCACAAGCGGTGGAGCATGTGGTTTAATTCGAAGCAACGCGCAGAACCTTACCAGCCCTTGACATACCGGTCGCGGACACAGAGATGTGTCTTTCAGTTCGGCTGGACCGGATACAGGTGCTGCATGGCTGTCGTCAGCTCGTGTCGTGAGATGTTGGGTTAAGTCCCGCAACGAGCGCAACCCTCGCCCTTAGTTGCCAGCATTTAGTTGGGCACTCTAAGGGGACTGCCAGTGATAAGCTGGAGGAAGGTGGGGATGACGTCAAGTCCTCATGGCCCTTACGGGCTGGGCTACACACGTGCTACAATGGTGGTGACAGTGGGCAGCGAGCGTGCGAGCGCAAGCTAATCTCCAAAAGCCATCTCAGTTCGGATTGCACTCTGCAACTCGAGTGCATGAAGTTGGAATCGCTAGTAATCGCGGATCAGCATGCCGCGGTGAATACGTTCCCGGGCCTTGTACACACCGCCCGTCACACCATGGGAGTTGGTTTTACCCGAAGGCACTGTGCTAACCGCAAGGAGGCAGGTGACCACGGTAGGGTCAGCGACTGGGGTGAAGTCGTAACAAGGTAGCCGTAGGGGAACCTGCGGCTGGATCACCTCCTTT GenBank: BioSample SAMN07581412

C. elegans var Bristol. Generation time is about 3 days. Brood size is about 350. Also CGC reference 257. Isolated from mushroom compost near Bristol, England by L.N. Staniland. Cultured by W.L. Nicholas, identified to genus by Gunther Osche and species by Victor Nigon; subsequently cultured by C.E. Dougherty. Given to Sydney Brenner ca. 1966. Subcultured by Don Riddle in 1973. Caenorhabditis elegans wild isolate. DR subclone of CB original (Tc1 pattern I). [NOTE: This stock might carry a ~1.8 kb deletion in alh-2 in the background. (UPDATE: 03/26/2018 - a user reported the stock they received was homozygous for the alh-2(ot588) mutation.)]

C. elegans var Bristol. Self-fertilizing hermaphrodite. Generation time is about 3.5 days at 20C. Male stock maintained by mating. Also CGC reference 257. Isolated from mushroom compost near Bristol, England by L.N. Staniland. Cultured by W.L. Nicholas, identified to genus by Gunther Osche and species by Victor Nigon; subsequently cultured by C.E. Dougherty. Given to Sydney Brenner ca. 1966. Subcultured by Don Riddle in 1973. Caenorhabditis elegans wild isolate. DR subclone of CB original (Tc1 pattern I). [NOTE: (09/07/2018) The Gems Lab has identified a mutation in the gene fln-2 carried in this stock causing an increased lifespan. The effect is quite modest (+11%, median lifespan), but this effect can be more pronounced in other genetic backgrounds.] [NOTE: (03/26/2018) - a user reported the stock they received was homozygous wild-type for alh-2; some N2 stocks carry the ot588 mutation in alh-2.)

5% of the wild type b-glucuronidase activity.

Undectectable levels of b-glucuronidase activity. Limp paralysed phenotype at all stages. Larvae can move slightly more than adults. Egl.

Quinine avoidance defective. In qui-1(gb404) a CAA to TAA transition at position 11215 of Y45F10B generates a stop codon in the fifth exon of Y45F10B.10. Putative null allele.

Intragenic revertant restoring to almost WT level of b-glucuronidase activity. Throws males.

wdEx457 [F39B2.8::GFP + unc-119(+)]. Pick non-Unc to maintain. GFP expression in pharyngeal muscles, posterior ventral cord motor neurons, tail neurons, and a few head neurons. Construct made by M. Vidal lab; candidate unc-37 target gene. F39B2.8 also known as gpr-158.

wdIs3[del-1::GFP + dpy-20(+)]. del-1 is expressed in the VB motor neurons beginning the the L2 larval stage. By the end of L2, del-1::GFP is also visible in a few VA motor neurons at the anterior end of the nerve cord. Expression of del-1::GFP in the VAs progresses in a wave from anterior to posterior, with all VAs expressing del-1::GFP by the adult stage. Thus, del-1::GFP is not expressed in the VAs during the L2 period in which unc-4 functions in those cells to establish synaptic inputs but is expressed in the VAs after they have been wired into the ventral cord circuit. del-1::GFP is also expressed in five neurons (VB1, VB2, SABVR, SABVL, VA1) in the retrovesicular ganglion at the anterior end of the ventral nerve cord. During the mid-L2 larval stage, del-1::GFP expression in the ventral nerve cord is largely restricted to the VB class of motor neurons.

wdEx637 [dat-1::3xFLAG::pab-1 + unc-119(+)]. Pick non-Unc to maintain. Reference: Spencer WC, et al. Genome Res. 2011 Feb;21(2):325-41.

wdEx75 [acr-5::GFP + lin-15(+)]. Expressed in B-type motor neurons.

2 kb deletion mutant made by OMRF Knockout Group. Presumptive null. No obvious phenotype. Primers used: EL1: GAAACGGTGAGTGCCAATTT. ER1: AGTGCTGTCACACCAAGCAC. IL1: AAACCAACTGACCCAAGGTG. IR1: TATCTAGGGTCCGCACAACC. Left breakpoint sequence: AGGTTGACAAATTGTTGCGA. Right breakpoint sequence: CGCTTATTAAAAAATAATAT.

No obvious phenotype. 1.5 kb deletion of acr-5 produced by Moulder/Barstead at OMRF. Left breakpoint sequence: TGGGTGATGCTATATGCACA. Right breakpoint sequence: TAGACTTCCGAGCAATAATTC.

No obvious phenotype. 2 kb deletion of acr-5 produced by Moulder/Barstead at OMRF. Deletion removes all 4 transmembrane domains. This is likely a null allele. Left breakpoint sequence (includes repeated sequence): TTTTTAATTATCCGTAATTTTTTAATTATCCGTAAT. Right breakpoint sequence: AACATCTTTAATCGATTTAT.

ynIs37 [flp-13::GFP] III. juIs223 [ttr-39p::mCherry + ttx-3p::GFP] IV. ttr-39::mCherry alone marks VD and DD neurons. ttx-3::GFP marks AIY neurons. Combined ttr-39::mCherry and flp-13::GFP co-expression marks DD neurons in the L2 (only a few mCherry+/GFP+ DD neurons will show up briefly in the L2 stage and gene silencing apparently dims the GFP marker over time). VD neurons can be identified by mCherry alone, no GFP. Derived by crossing parental strains CZ8332 and NY2037. Can be used to isolate VB neurons by FACS. Used by CeNGEN project for RNA-Seq (https://www.cengen.org/).

wdEx1034 [rab-3p::GFP1-10 + myo-2p::mCherry]. Pick mCherry+ to maintain. wd114 created by the insertion of a tandem array containing seven copies of the GFP11 beta-strand (gfp11x7) in the endogenous oig-1 locus; can be crossed with reporter lines expressing the complementing split GFP fragment (gfp1-10) in specific cell types to facilitate tissue-specific labeling. Reference: He S, et al. Genetics. 2019 Jun;212(2):387-395.

ufIs26 [unc-4p::mCherry + lin-15(+)] II. otIs707 [bnc-1p(1.8kb)::GFP]. VB neurons are GFP+ only; VA and SABV have both mCherry and GFP. Can be used to isolate VB neurons by FACS. Used by CeNGEN project for RNA-Seq (https://www.cengen.org/).

otIs355 [rab-3p(prom1)::2xNLS::TagRFP] IV. otIs846 [egas-1p::GFP + unc-122p::GFP]. Pan-neuronal nuclear RFP expression. Co-expression of GFP and RFP in IL2 neuron can be used to isolate IL2 by FACS. Used by CeNGEN project for RNA-Seq (https://www.cengen.org/).

No obvious phenotype. 2.4 kb deletion of acr-5 produced by Moulder/Barstead at OMRF.

wdIs20 [unc-4p::snb-1::GFP + dpy-20(+)]. Animals are Lon, likely due to dpy-20(+) overexpression. Punctate GFP expression observed in dorsal nerve cord, ventral nerve cord, VC4, and VC5. Reference: Lickteig KM, et al. J Neurosci. 2001 Mar 15;21(6):2001-14.

wdEx257 [unc-4::3XFLAG::pab-1 + (pSV17) unc-119 minigene]. Animals exhibit slight forward movement defect. Good antibody staining witih anit-FLAG M2 antibody (Sigma). 100% penetrant array. Expressed in all unc-4 neurons. Ectopically expressed in at least one head neuron (dorsal to pharynx, between two bulbs).

wdEx290 [acr-15::GFP + unc-119(+)]. Pick non-Unc to maintain. GFP expression in VNC, head neurons, and tail neurons. Construct made by M. Vidal lab; candidate unc-37 target gene.

wdEx329 [F09C3.2::GFP + unc-119(+)]. Pick non-Unc to maintain. GFP expression in ventral nerve cord. Construct made by M. Vidal lab; candidate unc-37 target gene.

wdEx345 [F55C12.4::GFP + unc-119(+)]. Pick non-Unc to maintain. GFP expression in VNC, head neurons, and tail neurons. Construct made by M. Vidal lab; candidate unc-37 target gene.

wdEx346 [tig-1::GFP + unc-119(+)]. Pick non-Unc to maintain. GFP expression in head neurons, tail neurons. head muscles, and vulva. Construct made by M. Vidal lab; candidate unc-37 target gene.

wdEx348 [C13G3.1::GFP + unc-119(+)]. Pick non-Unc to maintain. GFP expression in VNC, head neurons, and tail neurons. Construct made by M. Vidal lab; candidate unc-37 target gene.

wdEx351 [tsp-7::GFP + unc-119(+)]. Pick non-Unc to maintain. GFP expression in motor neurons. Construct made by M. Vidal lab; candidate unc-37 target gene.

wdEx353 [Y34D9B.1a::GFP + unc-119(+)]. mig-1::GFP construct made by Marc Vidal's group at Harvard as part of the promoterome project; unc-37 target gene. GFP expression observed in all classes of VNC motor neurons, head & tail neurons, body wall muscle, and intestine. [The strain is described as unc-119 and unc-119(+) as the co-injection marker, but looks to actually be lin-15 (Muv).]

wdEx381 [F55C12.4::GFP + unc-119(+)]. Pick non-Unc to maintain. GFP expression in VNC, head neurons, and tail neurons. Construct made by M. Vidal lab; candidate unc-37 target gene.

wdEx419 [acr-16::GP + rol-6(su1006)]. Rollers. Maintain by picking rollers. GFP expression detectable in body wall muscle and DB motor neurons.

wdEx445 [T27E9.9::GFP + rol-6(su1006))]. Pick rollers to maintain. GFP expression in DA and DB neurons during L1 stage, low levels of expression in VA neurons in later stages.

Long lifespan and healthspan. mig-22(k185) is a gain-of-function allele that increase endogenous chondroitin and suppress the gonad migration defect of mig-17(k174). Reference: Shibata Y, et al. Sci Rep. 2024 Feb 27;14(1):4813. doi: 10.1038/s41598-024-55417-7. PMID: 38413743.

wgIs652 [fkh-8::TY1::EGFP::3xFLAG + unc-119(+)]. CRISPR-engineered allele of daf-19 affects only isoforms a and b. De-repression of fkh-8 expression in neurons. Reference: Brocal-Ruiz R, et al. Elife. 2023 Jul 14;12:e89702. doi: 10.7554/eLife.89702. PMID: 37449480.

SL2::GFP::H2B tag inserted at the C-terminus of the endogenous osm-5 locus by CRISPR. GFP expression labels ciliated sensory neurons. Him. Reference: Brocal-Ruiz R, et al. Elife. 2023 Jul 14;12:e89702. doi: 10.7554/eLife.89702. PMID: 37449480.

Withered tail. Unc. Small broods. Recessive. Hypomorphic allele of vab-8.

mIs14 [myo-2p::GFP + pes-10p::GFP]. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP+ heterozygotes, Dpy bright GFP+ (mIn1 homozygotes), and non-GFP or302 homozygotes. Pick WT dim GFP and check for correct segregation of progeny to maintain. or302 homozygotes are GFP- and are Emb, ABar and have EMS spindle misalignment. or302 is a deletion starting at 503 and ending at 1578 of C27A2.6.

Egl. Maintain under normal conditions. Reference: Chen EB, et al. Dev Biol. 1997 Feb 1;182(1):88-100.

kytEx1011 [rheb-1p::rheb-1::GFP + rol-6(su1006)]. rheb-1 fragment was cloned into pPD95-75. Pick Rollers to maintain. Reference: Honjoh S, et al. Nature. 2009 Feb 5;457(7230):726-30.

kytEx1012 [hsp-12.6p(1kb)::hsp-12.6::GFP + rol-6(su1006)]. Pick Rollers to maintain. Reference: Honjoh S, et al. Nature. 2009 Feb 5;457(7230):726-30.

kytEx1013 [hsp-12.6p(5kb)::hsp-12.6::GFP + rol-6(su1006)]. Pick Rollers to maintain. Reference: Honjoh S, et al. Nature. 2009 Feb 5;457(7230):726-30.

Homozygous viable, but poor growth and some mortality at lower osmolarity. Large fluid-filled cysts in excretory cell body and shortened canals, sometimes visible with dissecting microscope. Encodes intermediate filament protein. ifc-2 formerly known as exc-2. References: Buechner M, et al. Dev Biol. 1999 Oct 1;214(1):227-41. doi: 10.1006/dbio.1999.9398. PMID: 10491271. Yang Z, et al. J Cell Biol. 2020 Nov 2;219(11):e202003152. doi: 10.1083/jcb.202003152. PMID: 32860501.

Bacteria. NJF01 originates from E. coli ET505 (F-, lambda- lysA0::Tn10 IN(rrnD-rrnE)1), modified with DE3 and (delta)rnc-38. The E. coli is lysine auxotroph and resistant to kanamycin and tetracycline. IPTG induces expression of the T7 polymerase. Grow at 37 °C on LA plates or in LB liquid medium. Reference: Fredens J, et al. Nat Methods. 2011 Aug 28;8(10):845-7.

Isoform-specific activation of SKN-1C. Heterozygotes are GFP+ and non-Unc. Segregates GFP+ non-Unc (heterozygotes), GFP+ Unc (tmC25 homozygotes), and GFP- non-Unc (skn-1 homozygotes). Eggs produced by skn-1(nic952) homozygotes do not hatch. Maintain by picking GFP+ non-Unc heterozygotes and checking for correct segregation of progeny. Reference: Jochim B, et al. PLoS Genet. 2025 Jul 7;21(7):e1011780. doi: 10.1371/journal.pgen.1011780. PMID: 40623109.

nicTi600 [eft-3p::tdTomato::H2B::unc-119(-) [*oxTi556]] I. Maintain at 20C, somewhat sick at 25C. Unc. nicTi600 is a modified version of oxTi556 that does not rescue unc-119(ed3). Broad, nuclear red fluorescence. This strain can be used for integration of multicopy transgenes using Fluorescent Landmark Interference (FLInt) and unc-119 rescue. Reference: Yanagi KS & Lehrbach N. MicroPublication Biology. 2024 (submitted).

nicTi601 [eft-3p::tdTomato::H2B::unc-119(-) [*oxTi726]] II. Maintain at 20C, somewhat sick at 25C. Unc. nicTi601 is a modified version of oxTi726 that does not rescue unc-119(ed3). Broad, nuclear red fluorescence. This strain can be used for integration of multicopy transgenes using Fluorescent Landmark Interference (FLInt) and unc-119 rescue. Reference: Yanagi KS & Lehrbach N. MicroPublication Biology. 2024 (submitted).

nicTi602 [eft-3p::tdTomato::H2B::unc-119(-)[*oxTi392]] V. Maintain at 20C, somewhat sick at 25C. Unc. nicTi602 is a modified version of oxTi392 that does not rescue unc-119(ed3). Broad, nuclear red fluorescence. This strain can be used for integration of multicopy transgenes using Fluorescent Landmark Interference (FLInt) and unc-119 rescue. Reference: Yanagi KS & Lehrbach N. MicroPublication Biology. 2024 (submitted).

nicTi603 [eft-3p::tdTomato::H2B::unc-119(-) [*oxTi705]] IV. Maintain at 20C, somewhat sick at 25C. Unc. nicTi603 is a modified version of oxTi705 that does not rescue unc-119(ed3). Broad, nuclear red fluorescence. This strain can be used for integration of multicopy transgenes using Fluorescent Landmark Interference (FLInt) and unc-119 rescue. Reference: Yanagi KS & Lehrbach N. MicroPublication Biology. 2024 (submitted).

nicTi604[eft-3p::tdTomato::H2B::unc-119(-) [*oxTi400]] X. Maintain at 20C, somewhat sick at 25C. Unc. nicTi604 is a modified version of oxTi400 that does not rescue unc-119(ed3). Broad, nuclear red fluorescence. This strain can be used for integration of multicopy transgenes using Fluorescent Landmark Interference (FLInt) and unc-119 rescue. Reference: Yanagi KS & Lehrbach N. MicroPublication Biology. 2024 (submitted).

nicIs77 [gst-4p::mCherry] V. Expression of gst-4p::mcherry reporter is strongly induced by oxidative stress. Reference: Jochim B, et al. PLoS Genet. 2025 Jul 7;21(7):e1011780. doi: 10.1371/journal.pgen.1011780. PMID: 40623109.

xrep-4(nic1522) is an engineered nonsence mutation [E22STOP]. Reference: Jochim B, et al. PLoS Genet. 2025 Jul 7;21(7):e1011780. doi: 10.1371/journal.pgen.1011780. PMID: 40623109.