No-Stain™ Protein Labeling Reagent
货号：A44449,A44717
规格：40 reactions,10 reactions
价格：1405,469
产品类型：蛋白凝胶电泳
品牌：Thermo Fisher
| The Invitrogen No-Stain Protein Labeling Reagent provides a flexible, accurate, rapid, and reliable method to visualize and normalize proteins in a gel or on a membrane (post-transfer). It forms covalent bonds to proteins in gels or on membranes within 10 minutes, does not require any de-staining steps, and can be instantly visualized using any commonly available imager. No-Stain reagent does not require any particular gels or other reagents and is compatible with gel stains and western workflows.Instant visualization of proteins in gelsCoomassie and other gel staining and de-staining steps can be extremely time consuming and cumbersome. No-Stain Protein Labeling Reagent forms covalent bonds with the lysine amino acid side chains on all proteins in a gel within 10 minutes. Since lysine is one of the most abundant amino acids, No-Stain reagent enables detection of all proteins in a gel or on a membrane, and the strong signal emission from the covalently bonded reagent provides nanogram-level sensitivity.• Alternative to traditional gel staining reagents—provides more accurate normalization over a wide range of protein lysate concentrations (1–80 µg)• Sensitive—lower limit of detection of 20 ng per band• Specific—forms bonds only with the lysine side chains of proteins. Unbound reagent does not emit, thereby enabling a superior signal-to-noise ratio• Flexible—no need to change your gels to get stain-free convenience. No-Stain reagent provides stain-free convenience with any gel type (precast or pour-your-own gel)Achieve the gold standard for quantitative western blottingProtein normalization is a critical step in obtaining reliable and reproducible quantitative western blotting. Total protein normalization is considered the gold standard for quantitative western blotting. Many leading journals have developed guidelines for submitting western blotting research and select quotes from those guidelines are provided below.An accurate loading control should display a linear relationship between signal intensity and sample load in all experimental conditions. The signal intensity obtained from labeling of total proteins on a membrane with No-Stain reagent ensures a linear relationship between signal intensity and sample load (see figure below) in all experimental conditions. Therefore, the use of No-Stain reagent in quantitative western blot applications enables the use of total protein as an ideal loading control. |
| 特点： |
| • Easy-to-use protocol—labeling of proteins within 10 minutes on either nitrocellulose or PVDF membranes• Rapid visualization using a wide-range of imagers with UV or fluorescence light sources• Accurate total protein normalization—the broad linear range for protein detection of 1–80 μg enables detection of No-Stain signal along with that of your target protein to achieve accurate total protein normalization• Sensitive and stable—nanogram level sensitivity with a stable signal that is compatible with downstream immunodetection steps• Superior analysis—housekeeping proteins are susceptible to signal saturation and other biological variations which are not observed when using No-Stain reagent for total protein normalization |
| 应用： |
| • No-Stain activator, 800 µL, store at -20°C• No-Stain derivatizer, 800 µL, store at -20°C• 2 x No-Stain labeling buffer, 20 mL, store at 15–30°C |
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