Cluster of differentiation 57 (CD57), also known as NK-1, is an antigen detectable in natural killer cells, some T-lymphocytes and normal peripheral blood mononuclear cells, myeloid cells, and a variety of polypeptides, lipids, and chondroitin sulfate proteoglycans. CD57 is indicated as a marker for tumors of neuroendocrine origin, including pheochromocytomas, paragangliomas, carcinoid tumor, and medulloblastomas, as well as various neural tumors including neuromas, neurofibromas, schwannomas, and granular cell tumors. CD57 is also detectable in ganglioneuroma and prostate carcinoma. Anti-CD57 is used to distinguish nodular lymphocyte-predominant Hodgkin’s lymphoma from T-cell/histiocyte-rich large B-cell lymphoma, nodular sclerosis Hodgkin’s disease, and follicular lymphoma.
Description
The DM2100 ExcelBand™ 100 bp DNA Ladder is a ready-to-use DNA ladder, which is pre-mixed with loading dye for direct gel loading. The DNA ladder DM2100 is composed of 11 individual DNA fragments: 1.5k, 1k, 900, 800, 700, 600, 500, 400, 300, 200 and 100 bp derived from a mixture of PCR products and specifically digested plasmid DNA. This product contains two enhanced bands (1.5 kb and 500 bp) for easier reference. In addition, two tracking dyes, Xylene cyanol FF and Orange G which mimic the migration of 4,000 bp and 50 bp dsDNA during electrophoresis are also added for real time monitoring.
Features
Source
Phenol extracted PCR products and dsDNA digested with specific restriction enzymes, equilibrated in 10 mM Tris-HCl (pH 8.0) and 10 mM EDTA.
Range
100 ~ 1,500 bp
Concentration
52.2 µg/ 500 µl
Recommended loading volume
5 µl/ well
Storage
Room temperature for 6 months
4°C for 12 months
-20°C for 36 months
The DM2100 ExcelBand™ 100 bp DNA Ladder is a ready-to-use DNA ladder, which is pre-mixed with loading dye for direct gel loading. The DNA ladder DM2100 is composed of 11 individual DNA fragments: 1.5k, 1k, 900, 800, 700, 600, 500, 400, 300, 200 and 100 bp derived from a mixture of PCR products and specifically digested plasmid DNA. This product contains two enhanced bands (1.5 kb and 500 bp) for easier reference. In addition, two tracking dyes, Xylene cyanol FF and Orange G which mimic the migration of 4,000 bp and 50 bp dsDNA during electrophoresis are also added for real time monitoring.
Hepatitis C virus infection is a major cause of chronic hepatitis, liver cirrhosis, and hepatocellular carcinoma (HCC) worldwide. Neither a vaccine nor an effective treatment is available for HCV. Pegylated interferon-α (PEG-IFN- α), combined with ribavirin, is the current standard therapy. Its efficiency ranges between 20-80%, depending on the HCV genotype. Unfortunately, many HCV infected patients do not respond to or do not tolerate the IFN-based therapy. Therefore, the number of patients progressing to HCC, as a result of HCV infection, is expected to increase over the next 20-30 years. The natural history of the disease reveals the elusive nature of the virus in a number of features. First, the infection is often detected incidentally at the time of blood donation as the acute infection is clinically asymptomatic in most patients. Second, HCV successfully escapes multi-specific host immune responses in the majority of patients which establishes persistent infection. Third, a significant number of persistently infected individuals remain unaware of the infection for decades, until liver fibrosis, cirrhosis and/or hepatocellular carcinoma develop.
HCV TaqMan RT-PCR Kit, 100 reactions
HCV TaqMan RT-PCR Probe/Primer Set and Controls, 100 reactions
For research use only and NOT intended for in vitro diagnostics.
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Storage Conditions and Product Stability
All kit components can be stored for 1 year after the date of production without showing any reduction in performance.
All kit components should be stored at -20°C upon arrival.
| Component | Cat. TM37650 (100 preps) | Cat. TM37610 (100 preps) |
|---|---|---|
| MDx TaqMan 2X PCR Master Mix | 2 x 700 μL | – |
| HCV Primer & Probe Mix | 280 μL | 280 μL |
| HCV Positive Control | 150 μL | 150 μL |
| Nuclease-Free Water (Negative Control) | 1.25 mL | 1.25 mL |
| Product Insert | 1 | 1 |
