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RNAspectra


For Fluorescent Differential Display with three fluorescently labeled one-base anchored oligo-dT primers and rationally designed arbitrary 13mers.

The RNAspectra Kits feature a new generation of Differential Display technology based on fluorescent detection of PCR products instead of radioactivity. It is the first non-radioactive differential display system with similiar sensitivity to that of 33P isotopic labeling.

Each kit contains all the reagents needed for fluorescent differential display except RNA samples, Taq DNA polymerase, and a fluorescent scanner. The MessageClean® is also highly recommended prior to differential display to remove trace amounts of DNA contamination from RNA samples.

GenHunter currently sells two versions of the RNAspectra Kit: a "Green" and a "Red" kit. As in the RNAimage® Kit, the RNAspectra kit contains three one-base-anchored oligo-dT primers to subdivide the mRNA population, except they are labeled with either 5' Fluorescein (RNAspectra Green Kits) or 5' Rhodamine (RNAspectra Red Kits). The use of three one-base-anchored primers reduces the redundancy and potential under-representation of the sub-population of mRNAs encountered by using either twelve individual or four degenerate two-base-anchored oligo-dT primers. With built-in restriction sites at the 5' ends of both anchored and arbitrary 13mers, the longer primer pairs produce highly selective and reproducible cDNA patterns. These improvements ensure that differentially expressed genes are more readily identified, cloned, and manipulated.

See Technical Notes Section for further discussion on primer design, calculation of coverage, comparison of DD to other methodologies, and false positives.

Comparison of Fluorescent DD (FDD) and isotopic DD.

RNA samples from normal (N) and tumor (T) specimens were compared using isotopic DD and FDD. Each image uses a one-base anchored oligo-dT primer, H-T11G, in duplicate with one arbitrary primer. Note the same differences are seen and the excellent reproducibility.
Fluorescent DD Image using the RNAspectra Red Kit

Comparison of 4 RNA samples (before and 6, 9, and 12 hours after a drug treatment) with automated reaction setup.
Digital FDD spectra analysis

Digital quantatative analysis of an FDD gel spectra accurately reveals a drug inducible gene (blue arrow). The red and green spectra represent different RNA samples being compared.
Schematic Schematic representation of Fluorescent mRNA Differential Display using RNAspectra Kits.

Three one-base anchored oligo-dT primers with 5' HindIII sites are used in combination with a series of arbitrary 13mers (also containing 5' HindIII sites) to reverse transcribe and amplify the mRNAs from a cell. Fluorescently labeled anchor primers are used in PCR.

See Technical Notes for more detailed information on the optimal primer designs for differential display.


Components Green & Red
 Cat. No.
RNAspectra Green Kit 1
F501
RNAspectra Green Kit 2
F502
RNAspectra Green Kit 3
F503
RNAspectra Green Kit 4
F504
RNAspectra Green Kit 5
F505
RNAspectra Green Kit 6
F506
RNAspectra Green Kit 7
F507
RNAspectra Green Kit 8
F508
RNAspectra Green Kit 9
F509
RNAspectra Green Kit 10
F510
RNAspectra Red Kit 1
R501
RNAspectra Red Kit 2
R502
RNAspectra Red Kit 3
R503
RNAspectra Red Kit 4
R504
RNAspectra Red Kit 5
R505
RNAspectra Red Kit 6
R506
RNAspectra Red Kit 7
R507
RNAspectra Red Kit 8
R508
RNAspectra Red Kit 9
R509
RNAspectra Red Kit 10
R510

RNAspectra Kits 2-10 contain all the components of Kit 1, but each has 8 different arbitrary 13mers (H-AP9 to H-AP80).

Choosing Kits: One could start with any RNAspectra Kit since the sequences are random and designed to be maximally different from one another, but to ensure a maximum coverage, multiple kits may be needed (See Technical Notes).

The RNAspectra Kits have been optimized for use with the Hitachi Genetic Systems FMBIO® II or III Fluorescent Imaging Systems. Contact GenHunter for more information on the FMBIO® II or III.".



Individual components for the RNAspectra Kits sold separately
DescriptionCat. No.Volume
FH-T11G Green Anchor PrinerF101-G200 µL
FH-T11C Green Anchor PrinerF101-C200 µL
FH-T11A Green Anchor PrinerF101-A200 µL
FH-T11N Green Anchor Priner SetF101-S200 µL each
RH-T11G Red Anchor PrinerR201-G200 µL
RH-T11C Red Anchor PrinerR201-C200 µL
RH-T11A Red Anchor PrinerR201-A200 µL
RH-T11N Red Anchor Priner SetR201-S200 µL each
H-AP Arbitrary Primers (2 µM each) H-AP1 to H-AP80150 µL
H-AP Primer Set 1 (H-AP1 to H-AP8)H-AP-A150 µL
H-AP Primer Set 2 (H-AP9 to H-AP16)H-AP-B150 µL
H-AP Primer Set 3 (H-AP17 to H-AP24)H-AP-C150 µL
H-AP Primer Set 4 (H-AP25 to H-AP32)H-AP-D150 µL
H-AP Primer Set 5 (H-AP33 to H-AP40)H-AP-E150 µL
H-AP Primer Set 6 (H-AP41 to H-AP48)H-AP-F150 µL
H-AP Primer Set 7 (H-AP49 to H-AP56)H-AP-G150 µL
H-AP Primer Set 8 (H-AP57 to H-AP64)H-AP-H150 µL
H-AP Primer Set 9 (H-AP65 to H-AP72)H-AP-I150 µL
H-AP Primer Set 10 (H-AP73 to H-AP80)H-AP-J150 µL
dNTP Mix (FDD)S505500 µL
10X PCR BufferS201500 µL
5X RT BufferS401500 µL
MMLV Reverse Transcriptase (100 units/µL)S40240 µL
FDD Loading DyeF2011 mL
H-T11G Anchor Primer (2µM)H-101-G300 µL
H-T11A Anchor Primer (2µM)H-101-A300 µL
H-T11C Anchor Primer (2µM)H-101-C300 µL
H-T11N Anchor Primer Set (2µM each)H-101-S300 µL ea.
dH2ODH2O1.2 mL
Fluorescein Locator DyeF202100 µL


 
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