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(Plasmid #44238)


Item Catalog # Description Quantity Price (USD)
Plasmid 44238 Standard format: Plasmid sent in bacteria as agar stab 1 $85

This material is available to academics and nonprofits only.


  • Vector backbone
  • Backbone manufacturer
  • Backbone size w/o insert (bp) 5418
  • Total vector size (bp) 7648
  • Vector type
    Mammalian Expression ; lactate biosensor
  • Selectable markers
    Neomycin (select with G418)

Growth in Bacteria

  • Bacterial Resistance(s)
    Ampicillin, 100 μg/mL
  • Growth Temperature
  • Growth Strain(s)
  • Copy number
    High Copy


  • Gene/Insert name
    Laconic (LACtate Optical Nano Indicator from CECs)
  • Species
  • Insert Size (bp)
  • Promoter CMV

Cloning Information

  • Cloning method Restriction Enzyme
  • 5′ cloning site BamHI (unknown if destroyed)
  • 3′ cloning site HindIII (unknown if destroyed)
  • 5′ sequencing primer CMV-F
  • 3′ sequencing primer BGH-rev
  • (Common Sequencing Primers)

Resource Information

Terms and Licenses

  • Academic/Nonprofit Terms
  • Industry Terms
    • Not Available to Industry
  • Zeocin® is an InvivoGen trademark.

Depositor Comments

Laconic is a genetically-encoded biosensor that detects lactate in the physiological range. The sensor was based on LldR, a bacterial transcription regulator that consists of a lactate-binding/regulatory domain and a DNA-binding domain. Laconic consists of a N-terminal mTFP, followed by the LldR flanked by linkers, and finally a C-terminal Venus.

See Addgene plasmid# 46307: NLS-Laconic/pCMV-myc-nuc for a nuclear-targeted version of Laconic: .

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:

    Laconic/pcDNA3.1(-) was a gift from Luis Felipe Barros (Addgene plasmid # 44238 ; ; RRID:Addgene_44238)
  • For your References section:

    A Genetically Encoded FRET Lactate Sensor and Its Use To Detect the Warburg Effect in Single Cancer Cells. San Martin A, Ceballo S, Ruminot I, Lerchundi R, Frommer WB, Barros LF. PLoS One. 2013;8(2):e57712. doi: 10.1371/journal.pone.0057712. Epub 2013 Feb 26. 10.1371/journal.pone.0057712 PubMed 23469056