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Standard Scorpions®

Standard Scorpions® Build & Order

This consists of a bi-labelled probe with a fluorescent dye at the 5’ end (FAM, HEX, TET, JOE, Yakima Yellow®, ROX, ...) and an internal non-fluorescent quencher.


Name Synthesis scale Recommended Purification* Included Purification* Reference EUR
Standard Scorpions® primers 200 nmol N/A N/A PB-SP001-020 535.50
* More info on the Purifications page

Quality Control

   MALDI-TOF Mass Spectrometry and Analytical HPLC

Delivery times

   15-39 bases: 12 Working days


40-80 bases: 15 Working days

Packaging

   Lyophilised

Shipping conditions

   Room temperature

Storage conditions


-20 °C to -70 °C

Oligonucleotides are stable in solution at 4°C for up to 2 weeks. Properly reconstituted material stored at -20°C should be stable for at least 6 months. Lyophilized DNA (when kept at -20°C) in a nuclease-free environment should be stable for years.
This consists of a bi-labelled probe with a fluorescent dye at the 5’ end (FAM, HEX, TET, JOE, Yakima Yellow®, ROX, ...) and an internal non-fluorescent quencher.

Scorpions® Advantages :
  • Stronger signals and lower background
    Typical Real-Time qPCR profiles obtained with Scorpions® primers demonstrate the low backgrounds and high signals of this type of probe in contrast to the high background of Double-Dye Oligonucleotides, and the low signal intensities associated with Molecular Beacons.
  • Support for rapid cycling
    Because the Scorpions® reactions occur effectively instantaneously, there is no need for an extended extension phase to allow signal generation to take place.
  • Improved SNP testing
    Scorpions® can be used for SNP analysis in two formats: allele specific hybridization or, uniquely, allele specific extension (ARMs technology). Allele specific Scorpions® primers give improved discrimination over other systems due to their unimolecular mode of action, and the possibility of an alternative structure that the probe element can form in preference to hybridizing to the mismatched target.
  • Extended multiplexing
    Scorpions® are compatible with any fluorescent dye, and this coupled with the low backgrounds of Scorpions® reactions allows extended multiplex development. Using a Real-Time PCR device with a broad range of filter, it is possible to combine four or more separate reactions.

Eurogentec is a licensed supplier of Scorpions® and offers a wide range of fluorophore reporters and quenchers. Scorpions® quenched with Deep Dark Quencher I, and coupled with a variety of fluorescent reporters can be conveniently ordered using our new web ordering interface. Scorpions® are double-HPLC purified and controlled by MALDI-TOF Mass Spectometry. The maximum length of Scorpions® probes is 45 bases. Scorpions® probes are provided lyophilized in individual tubes.

Eurogentec determines the signal-to-noise ratio (SNTR) for each Scorpions® by hybridizing it to its complementary sequence and comparing fluorescence to background. For FAM labelled Scorpions®, guaranteed SNTR is > 15. All other dyes require a signal-to-noise ratio of > 10 to pass Quality Control.

Legal notices

   For Research Use only

Leaflets

Product citations


THELWELL N. et al., "Mode of action and application of Scorpion primers to mutation detection", Nucleic Acids Research, vol. 28, n° 19, p. 3752-3761, October 2000


HART K.W. et al., "Novel method for detection, typing, and quantification of human papillomaviruses in clinical samples", Journal of Clinical Microbiology, vol. 39, n° 9, p. 3204-3212, September 2001


SOLINAS A. et al., "Duplex Scorpion primers in SNP analysis and FRET applications", Nucleic Acids Research, vol. 29, n° 20, October 2001


SCHENA L. et al., "Identification and Detection of Rosellinia Necatrix by Conventional and Real-time Scorpion-PCR", European Journal of Plant Pathology, vol. 108, n° 4, p. 355-366(12), May 2002


SCHENA L. et al., "Molecular Detection of Strain L47 of Aureobasidium pullulans, a Biocontrol Agent of Postharvest Diseases", Plant Disease, vol. 86, n° 1, 54-60, 2002


SCHENA L. and IPPOLITO A., "Rapid and sensitive detection of Rosellinia necatrix in roots and soils by Real-Time Scorpions-PCR", Journal of Plant Pathology, 85 (1), 15-25, January 2003


IPPOLITO A. et al., "Real-Time detection of Phytophthora nicotianae and P. citrophthora in citrus roots and soil", European Journal of Plant Pathology, vol. 110, 833-843, 2004


SCHENA L. et al., "Real-Time quantitative PCR: a new technology to detect and study phytopathogenic and antagonistic fungi", European Journal of Plant Pathology, vol. 110, 893-908, 2004


  • Online ordering: The most convenient way to order your oligonucleotides, peptides and Real-Time qPCR kits is to use our web ordering system. To place orders online, simply login if you have already an online account.

    New online customers ? Not registered yet ? Request your free login and password.

  • By e-mail: order@eurogentec.com
  • By fax : +32 4 264 07 88
  • By mail
    Eurogentec S.A.
    LIEGE Science Park
    Rue du Bois Saint Jean 5
    4102 Seraing
    BELGIUM

If you still have questions with ordering please contact our Customer Support : +32 4 372 76 65.


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