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For research use only.
Description:
Biotin16 Nick Translation Labeling Kit contains all reagents (except template and materials for purification of the probe) required for nick translation-based Biotin labeling of DNA providing a highly efficient, easy-to-perform and rapid labeling technology. The labeling principle is similar to the Biotin-Nick Translation Mix (Roche).Nick translation labeling is based on the reverse activities of Polymerase I and DNase I. DNase I is able to introduce randomly distributed nicks to double stranded DNA at low enzyme concentrations. The 5'→3' exonuclease activitiy of Polymerase I removes nucleotides from the 3' side of the nick while synthesizing a partial new complementary strand using the 3'-OH termini as primer. In the presence of labeled dUTP Polymerase I incorporates labeled dUTP instead of dTTP.
The BIO16 NT labeling mix contains an optimized Biotin-labeled dUTP for incorporation into DNA by nick translation using DNA Polymerase I.
Biotin-16-dUTP is enzymatically incorporated into DNA as substitute for its natural counterpart dTTP. Optimal substrate properties and thus labeling efficiency as well as an efficient detection of the Biotin moiety is ensured by a 16-atom linker attached to the C5 position of uridine.The well balanced polymerase / nuclease activities of the enzyme mix ensure the generation of highly labeled double stranded DNA fragments.
The resultant Biotin-labeled DNA is suitable for application in FISH and other nucleic acid hybridization assays.
Shipping: shipped on gel packs
Storage Conditions: store at -20 °C
avoid freeze/thaw cyclesShelf Life: 12 months
Content:
Enzyme mix (red cap)
2 units/μl Polymerase I, 0.02 units/μl DNase I in storage buffer10x NT labeling buffer (green cap)
10x conc.10x BIO16 NT labeling mix (purple cap)
0.5 mM dATP, 0.5 mM dCTP, 0.5 mM dGTP, 0.34 mM dTTP, 0.16 mM Biotin-16-dUTP, pH 7.5Stop buffer (yellow cap)
0.5 M EDTA, pH 8.0PCR-grade water (white cap)
Recommended NT assay (General Protocol):Sample material can be supercoiled or linearized plasmid DNA, cosmid or BAC DNA, whole or partial chromosomes or purified PCR products. PCR products should be purified by silica membrane adsorption to remove unincorporated dNTPs (e.g. PCR Purification Kit, #PP-201).
Prepare the following reaction mixture in a sterile vial.
20 μl Nick translation labeling assay
2 μl 10x NT labeling buffer green cap 2 μl 10x BIO16 NT labeling mix purple cap 1-1.5 μg template DNA - 2 μl 10x Enzyme mix red cap Fill up to 20 μl PCR-grade water white cap - Vortex the mix gently to assure homogeneity and centrifuge briefly to collect the reaction mixture at the bottom of the tube.
- Place the tube in a precooled thermomixer at 15°C. An incubation of 90 min is recommended to generate DNA fragments in a size range between 200 and 500 bp.
- To control the length of the fragments load 2μl of the assay on an agarose gel. Place the reaction tube at -20°C while running the gel.
- To get smaller fragments extend the incubation at 15°C.
- For final stopping of the reaction add 5μl of Stop buffer (yellow cap). Proceed to purification or store at -20°C.
Purification of the probe:
Some downstream applications require the removal of unincorporated dNTPs (labelled and unlabelled). To remove unincorporated nucleotides from the reaction mixture prior to its use in subsequent experiments one of the following procedures is recommended:1. Purification by silica-gel membrane adsorption - PCR Purification Kit, #PP-201
The PCR Purification Kit provides a simple and efficient way to purify DNA fragments larger than 100 bp. The preparation is based on a silica-membrane technology for binding DNA in high-salt and elution in low-salt buffer. Please refer to the instruction manual.
2. Purification by Isopropanol precipitation
Add 1μl glycogene (2 mg/ml), 2 μl sodium acetate (3 M) and 14 μl isopropanol to the reaction mixture and mix well but gently. Incubate on RT for 15 min and spin down at maximum speed at 4°C for 30 min. Discard the supernatant and wash 2x with 70% ethanol (spin down at maximum speed for 5 min).3. Purification by Centrifugal Filter Units
Unincorporated nucleotides can be removed by centrifugation using centrifugal filter units. Select the filter unit by its cut-off for DNA fragments and follow the manufacturer's instructions. -
产品组分
内容 型号
规格 储存温度
生物素16切口平移(NT)标记试剂盒
PP310BIOX-01 10次x20μL
-20°C 生物素16切口平移(NT)标记试剂盒
PP310BIOX-02 75次x20μL
-20°C 操作手册
1 1 常温
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注意事项
保存建议 厂家推荐蓝冰运输。当您收到产品后，按照说明书建议保存于-20°C。 -
FAQ
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