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ReadiLink™ iFluor® 647 FISH Fluorescence Imaging Kit

Fluorescence in situ hybridization (FISH) technology is an effective tool for detecting specific nucleic acid targets in a biological specimen. Detection of a nucleic acid target in situ is achieved through the hybridization of a fluorescent dye-labeled nucleic acid probe of complementary sequence to the specimen. The Readilink™ iFluor® 647 FISH fluorescence imaging kit is a convenient tool for labeling a target DNA using an iFluor® 647 labeled FISH probe via in situ hybridization. The kit provides Taq DNA polymerase enzyme which incorporates iFluor® 647-dUTPs in the target DNA through Polymerase Chain Reaction (PCR). Our proprietary iFluor® dyes are brighter and more photostable than traditional fluorescent labels, providing the desired resolution and signal.

Example protocol

SAMPLE EXPERIMENTAL PROTOCOL

Before using, thaw all components to room temperature and mix thoroughly by vortexing.

Note: The following protocol can be used as a general guideline to standard DNA FISH. Optimization may be necessary for your experimental system.

  1. Prepare the following reaction mixes as indicated in Table 1.

    Table 1. Reagents composition per well for each reaction.

    ComponentsVolume (25 µL/reaction)Final Conc.
    FISH Reaction mix (2X)12.5 µL1X
    Upstream primer, 10 µM0.25-2.5 µL0.1-1.0 µM
    Downstream primer, 10 µM0.25-2.5 µL0.1-1.0 µM
    DNA template1-5 µLOptimized conc.
    iFluor® 647-dUTP2.5 µL 
    dNTP mix1 µL 
    Water, nuclease-free25 µL 
  2. Carefully mix the reagents by gentle vortexing followed by a brief centrifuge.

  3. Set up the plate in the qPCR instrument and run as indicated in Table 2.

    Table 2. Thermal cycling parameters.

    Parameter

    Polymerase Activation

    PCR (30-40 cycles)

     

    Hold

    Denature

    Anneal

    Extend

    Temperature

    95 °C

    95 °C

    55-65 °C

    68-72 °C

    Time (m:ss)

    0:20

    0:30

    1:00

    1:00

Spectrum

Product family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Quantum yieldCorrection Factor (260 nm)Correction Factor (280 nm)
ReadiLink™ iFluor® 488 FISH Fluorescence Imaging Kit4915167500010.910.210.11
ReadiLink™ iFluor® 555 FISH Fluorescence Imaging Kit55757010000010.6410.230.14

References

View all 32 references: Citation Explorer
Quantitative intracellular retention of delivered RNAs through optimized cell fixation and immunostaining.
Authors: Paramasivam, Prasath and Stöter, Martin and Corradi, Eloina and Dalla Costa, Irene and Höijer, Andreas and Bartesaghi, Stefano and Sabirsh, Alan and Lindfors, Lennart and Yanez Arteta, Marianna and Nordberg, Peter and Andersson, Shalini and Baudet, Marie-Laure and Bickle, Marc and Zerial, Marino
Journal: RNA (New York, N.Y.) (2022): 433-446
In Situ Super-Resolution Imaging of Telomeres with DNA-PAINT.
Authors: Liu, Yuanyuan and Ye, Xiangyu and Wang, Zhuyuan and Zong, Shenfei and Cui, Yiping
Journal: ACS omega (2022): 40512-40519
A Janus 3D DNA nanomachine for simultaneous and sensitive fluorescence detection and imaging of dual microRNAs in cancer cells.
Authors: Yang, Zezhou and Peng, Xin and Yang, Peng and Zhuo, Ying and Chai, Ya-Qin and Liang, Wenbin and Yuan, Ruo
Journal: Chemical science (2020): 8482-8488
Dual-probe RNA FRET-FISH in Yeast.
Authors: Wadsworth, Gable M and Parikh, Rasesh Y and Kim, Harold D
Journal: Bio-protocol (2018): e2867
mRNA detection in budding yeast with single fluorophores.
Authors: Wadsworth, Gable M and Parikh, Rasesh Y and Choy, John S and Kim, Harold D
Journal: Nucleic acids research (2017): e141
Page updated on December 17, 2024

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Catalog Number17316
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Physical properties

Solvent

Water

Spectral properties

Correction Factor (260 nm)

0.03

Correction Factor (280 nm)

0.03

Correction Factor (656 nm)

0.0793

Extinction coefficient (cm -1 M -1)

2500001

Excitation (nm)

656

Emission (nm)

670

Quantum yield

0.251

Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22

Storage

Freeze (< -15 °C); Minimize light exposure

Platform

Thermal Cycler

Recommended platePCR Microplate

Components