11175025910
Roche
DIG RNA Labeling Kit (SP6/T7)
sufficient for 2 x 10 labeling reactions, kit of 1 (12 components), suitable for hybridization, suitable for Southern blotting
Synonym(s):
DIG system, rna labeling
About This Item
usage
sufficient for 2 x 10 labeling reactions
Quality Level
packaging
kit of 1 (12 components)
manufacturer/tradename
Roche
greener alternative product characteristics
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technique(s)
Northern blotting: suitable
Southern blotting: suitable
hybridization: suitable
greener alternative category
, Aligned
storage temp.
−20°C
General description
Sample Materials
- Linearized plasmid DNA
- PCR product
The DIG RNA Labeling Kit produces DIG-labeled, single-stranded RNA probes of known length. Either SP6 or T7 RNA polymerase transcribes these probes in vitro from template DNA (in the presence of digoxigenin-UTP).
RNA Labeling by in vitro Transcription
The DNA to be transcribed is cloned into the polylinker site of appropriate transcription vectors (e.g., pSPT 18 or 19), which contain promoters for SP6 and T7 RNA polymerases. Adjacent template DNA is linearized at a suitable site and the RNA polymerases are used to produce "run off" transcripts. DIG-UTP is incorporated into the transcript. Every 20 to 25th nucleotide of the newly synthesized RNA is a DIG-UTP. Since the nucleotide concentration does not become limiting in the standard transcription reaction, this reaction can generate large amounts of labeled RNA.
Specificity
DIG-labeled RNA probes can detect single-copy genes in as little as 1 μg of mammalian DNA under the following assay conditions: The hybridization mix contains 20 to 100 ng labeled probe/ ml, and the bound probe is detected with anti-DIG-AP and visualized with the chemiluminescent substrate CDP-Star.
Heat inactivation: Stop the reaction by adding 2 μl 0.2 M EDTA (pH 8.0).
Application
- Northern blots
- Southern blots
- In situ hybridizations
- Plaque or colony lifts
- RNase protection experiments
Note: Since the linkage between DIG and UTP is resistant to alkali, DIG-labeled RNA can be fragmented by alkaline treatment. Slightly reducing the size of the DIG-labeled RNA probe may make it more suitable for certain applications in in situ hybridization.
Packaging
Quality
Other Notes
Kit Components Only
- pSPT18 DNA 0.25 mg/ml
- pSPT19 DNA 0.25 mg/ml
- Control DNA 1, pSPT18-Neo, cleaved with Pvu II 0.25 mg/ml
- Control DNA 2, pSPT19-Neo, cleaved with Pvu II 0.25 mg/ml
- DIG-labeled Control RNA, DIG-labeled "antisense" neo RNA 100 ng/µl
- Unlabeled Control RNA, neo poly (A) "sense" RNA 200 µg/ml
- NTP Labeling Mixture 10x concentrated
- Transcription Buffer 10x concentrated
- DNase I, RNase-free 10 U/µl
- Protector RNase Inhibitor 20 U/µl
- SP6 RNA Polymerase 20 U/µl
- T7 RNA Polymerase 20 U/µl
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Sens. 1
Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 2
Flash Point(F)
does not flash
Flash Point(C)
does not flash
Certificates of Analysis (COA)
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