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VV220: CoChR(C108S)-eGFP in fck
(Plasmid #58512)


Item Catalog # Description Quantity Price (USD)
Plasmid 58512 Standard format: Plasmid sent in bacteria as agar stab 1 $75

This material is available to academics and nonprofits only.


  • Vector backbone
    FCK(1.3)GW, from Addgene 22217
  • Backbone size w/o insert (bp) 9240
  • Total vector size (bp) 10059
  • Vector type
    Mammalian Expression, Lentiviral

Growth in Bacteria

  • Bacterial Resistance(s)
    Ampicillin, 100 μg/mL
  • Growth Temperature
  • Growth Strain(s)
  • Growth instructions
    Use recombinase-free E. coli
  • Copy number


  • Gene/Insert name
  • Alt name
    Channelrhodopsin from Chloromonas oogama
  • Species
    Chloromonas oogama
  • Insert Size (bp)
  • Mutation
    changed Cysteine 108 to Serine
  • Promoter a-CamKII
  • Tag / Fusion Protein
    • eGFP (C terminal on insert)

Cloning Information

  • Cloning method Restriction Enzyme
  • 5′ cloning site BamHI (not destroyed)
  • 3′ cloning site EcoRI (not destroyed)
  • 5′ sequencing primer GCTCGTCAATCAAGCTGGTTC
  • 3′ sequencing primer CCACATAGCGTAAAAGGAGCAAC
  • (Common Sequencing Primers)

Resource Information

  • A portion of this plasmid was derived from a plasmid made by
    We received this gene (CoChR) from Nathan Klapoetke in the Boyden Lab at MIT; we made the C108S point mutation in CoChR and cloned it into the fck vector. Note that C108 in CoChR is homologous to the C128 in ChR2; the ChR2(C128S) was first made by Berndt et al (reference: Bi-stable neural state switches. Berndt et al (Nat Neurosci. 2009 Feb. 12(2):229-34.)

Terms and Licenses

  • Zeocin® is an InvivoGen trademark.

Depositor Comments

CoChR was published in: Klapoetke, N. C., Y. Murata, S.S. Kim, S.R. Pulver, A. Birdsey-Benson, Y.K. Cho, T.K. Morimoto, A.S. Chuong, E.J. Carpenter and Z. Tian. 2014. Independent optical excitation of distinct neural populations. Nat. Meth. 11, 338-346.

How to cite this plasmid ( Back to top)

These plasmids were created by your colleagues. Please acknowledge the Principal Investigator, cite the article in which the plasmids were described, and include Addgene in the Materials and Methods of your future publications.

  • For your Materials & Methods section:

    VV220: CoChR(C108S)-eGFP in fck was a gift from Adam Cohen (Addgene plasmid # 58512 ; ; RRID:Addgene_58512)
  • For your References section:

    Imaging GFP-Based Reporters in Neurons with Multiwavelength Optogenetic Control. Venkatachalam V, Cohen AE. Biophys J. 2014 Oct 7;107(7):1554-63. doi: 10.1016/j.bpj.2014.08.020. 10.1016/j.bpj.2014.08.020 PubMed 25296307