Skip to main content

DRAQ7™ is a far-red fluorescent dye that only stains the nuclei in dead and permeabilized cells and can be used in combination with common labels such as GFP or FITC.


Images

Flow Cytometry - DRAQ7™ (AB109202), expandable thumbnail
  • Immunohistochemistry (Frozen sections) - DRAQ7™ (AB109202), expandable thumbnail
  • Immunohistochemistry (Frozen sections) - DRAQ7™ (AB109202), expandable thumbnail

Publications

Key facts

Applications
ICC/IF, Flow Cyt, Fluorescence Microscopy
Target
DRAQ7
Form
Liquid

Reactivity data

Application
ICC/IF
Reactivity
Reacts
Dilution info
1/100
Notes

(final concentration = 3µM). It is highly recommended that the concentration and labelling conditions are carefully determined by each investigator for optimal performance in the assay of interest.For more specific information about the applications, please refer to the Protocol Booklet.

Application
Flow Cyt
Reactivity
Reacts
Dilution info
1/100
Notes

(final concentration = 3µM)

Application
Fluorescence Microscopy
Reactivity
Reacts
Dilution info
-
Notes

-

Recommended products

DRAQ7™ is a far-red fluorescent dye that only stains the nuclei in dead and permeabilized cells and can be used in combination with common labels such as GFP or FITC.

Key facts

Applications
ICC/IF, Flow Cyt, Fluorescence Microscopy
Target
DRAQ7
Form
Liquid
Storage buffer

Constituents: 1% Proprietary derivative of 1,5-BIS{[2-(DIMETHYLAMINO) ETHYL]AMINO}-4,8-DIHYDROXYANTHRACENE-9,10-DIONE

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
Do Not Freeze, Store in the dark

Notes

DRAQ7™ is a far-red fluorescent dye that only stains the nuclei in dead and permeabilized cells and can be used in combination with common labels such as GFP or FITC.

DRAQ7 is the ideal tool to study dead or membrane-compromised cells because it does not enter intact, live cells. It is an ideal replacement for propidium iodide and 7-AAD, as is not excited by UV light and has no emission overlap with PE / PE homologues.

Key features of DRAQ7 include:

  • Rapid staining of dsDNA/ nuclei of dead or permeabilized cells
  • Low photobleaching
  • It can be used in most cell types, eukaryotic and prokaryotic: mammalian, bacterial, parasitic, plant, etc ...
  • Non-toxic in long-term culture
  • Can be combined with "live" dyes
  • No compensation needed with common FITC/GFP + PE combinations in flow cytometry
  • No wash or RNase treatment needed.

SPECTRAL PROPERTIES

Excitation:

  • 633 and 647 nm line optimal (Exmax 599 / 644 nm)
  • 488, 514 and 568 nm lines, sub-optimal (only by flow cytometry)

Emission (instrument dependent):

  • 665 nm to infra-red max 678 nm / 697 nm intercalated with dsDNA)
  • Minimal overlap with vis range e.g. GFP and FITC
  • Em. filters may include 695L, 715LP or 780 LP

Multi-wavelength imaging with UV / vis fluorochromes

  • No fluorescence enhancement upon DNA binding
  • Low photo-bleaching effect
  • Compatible with optics of flow, laser scanning cytometers and confocal and lamp-based fluoroscence microscopes

Product promise

We are dedicated to supporting your work with high quality reagents and we are here for you every step of the way should you need us.

In the unlikely event of one of our products not working as expected, you are covered by our product promise.

Full details and terms and conditions can be found here:
Terms & Conditions.

3 product images

  • Flow Cytometry - DRAQ7™ (ab109202), expandable thumbnail

    Flow Cytometry - DRAQ7™ (ab109202)

    Jurkat cells exposed to 1μM staurosporine for 24 hours show DRAQ7™ staining (top half of the plot). These cells have compromised membranes that allow entry of DRAQ7™ in the cells.

  • Immunohistochemistry (Frozen sections) - DRAQ7™ (ab109202), expandable thumbnail
    Courtesy of Dr. Shaohua Li, UMDNJ-Robert Wood Johnson Medical School

    Immunohistochemistry (Frozen sections) - DRAQ7™ (ab109202)

    Sample: mouse embryonic stem cell-differentiated embryoid bodies (EBs)
    Preparation:

    • Fix in 3%PFA in PBS for 30 min at RT
    • Incubate in 7.5% sucrose-PBS for 3h at RT
    • Incubate in 15% sucrose-PBS at 4 degree Celsius overnight
    • Embed the EBs in tissue-Tek OCT compound
    • Cut frozen sections to 4-20 μm thickness

    Primary antibody: Rabbit anti-laminin alpha 1, 1:400
    Secondary antibody: Goat anti-rabbit IgG - H&L (AMCA) (ab123435)
    Nuclei were counterstained stained with DRAQ7™ (ab109202)

  • Immunohistochemistry (Frozen sections) - DRAQ7™ (ab109202), expandable thumbnail
    Courtesy of Dr. Shaohua Li, UMDNJ-Robert Wood Johnson Medical School

    Immunohistochemistry (Frozen sections) - DRAQ7™ (ab109202)

    Sample: mouse embryonic stem cell-differentiated embryoid bodies (EBs)

    Preparation:

    • Fix in 3%PFA in PBS for 30 min at RT
    • Incubate in 7.5% sucrose-PBS for 3h at RT
    • Incubate in 15% sucrose-PBS at 4°C overnight
    • Embed the EBs in tissue-Tek OCT compound
    • Cut frozen sections to 4-20 μm thickness



    Primary antibody: Rabbit anti-laminin alpha 1, 1:400
    Secondary antibody: Goat polyclonal Secondary Antibody to Rabbit IgG - H&L (FITC) (Goat Anti-Rabbit IgG H&L (FITC) ab97050), 1:200
    F-actin was stained with CytoPainter F-actin staining kit (blue) (F-actin Staining Kit - Blue Fluorescence - Cytopainter ab112124), 1:1000
    Nuclei were counterstained stained with DRAQ7™, 1:1000

Downloads

Product protocols

For this product, it's our understanding that no specific protocols are required. You can:

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

For licensing inquiries, please contact partnerships@abcam.com