注意:因业务调整,暂不接受个人委托测试望见谅。
Western blotting: Western blotting is a commonly used method to detect and analyze protein expression. It involves separating proteins using gel electrophoresis, transferring them to a membrane, and then probing the membrane with specific antibodies that bind to the target protein. This method allows for the detection and quantification of protein expression levels.
Immunohistochemistry (IHC): Immunohistochemistry is a technique used to visualize protein expression in tissue samples. It involves using specific antibodies that bind to the protein of interest, followed by the addition of a colored or fluorescent tag that can be visualized under a microscope. IHC is useful for determining the localization and distribution of proteins within tissues.
Immunofluorescence (IF): Immunofluorescence is a similar technique to IHC but uses fluorescent tags instead of colored tags. This allows for the visualization of protein expression in cells or tissues using fluorescence microscopy. Compared to IHC, IF provides higher sensitivity and allows for the simultaneous detection of multiple proteins using different fluorescent tags.
Enzyme-Linked Immunosorbent Assay (ELISA): ELISA is a quantitative method used to measure the concentration of proteins in a sample. It relies on the specific binding of antibodies to the target protein and the use of an enzyme-conjugated secondary antibody to generate a signal that can be measured. ELISA is commonly used in research, diagnostics, and drug discovery for protein quantification.
Protein gel electrophoresis: Protein gel electrophoresis is a technique used to separate proteins based on their size and charge. It involves running the protein sample through a gel matrix, typically made of polyacrylamide, under an electric field. The proteins move through the gel at different rates based on their size and charge, allowing for their separation. This method is often used as a preliminary step before other protein analysis techniques.
Mass spectrometry: Mass spectrometry is a powerful tool used to identify and quantify proteins in a sample based on their mass-to-charge ratio. It involves ionizing the proteins and measuring their mass-to-charge ratio using a mass spectrometer. This technique can provide information about the identity, sequence, and modifications of proteins present in a sample.
Reverse transcription-polymerase chain reaction (RT-PCR): RT-PCR is a method used to detect and quantify the expression of specific genes. It involves reverse transcribing RNA into complementary DNA (cDNA) using reverse transcriptase, followed by amplification of the target cDNA using PCR. By designing specific primers, RT-PCR can be used to measure the expression levels of specific genes of interest.
Flow cytometry: Flow cytometry is a technique used to analyze protein expression in individual cells within a population. It involves staining cells with fluorescently-labeled antibodies that bind to specific proteins of interest. The stained cells are then passed through a flow cytometer, which measures the fluorescence intensity of each individual cell. Flow cytometry allows for the assessment of protein expression at the single-cell level and can provide information about cell populations and their characteristics.
Proximity ligation assay (PLA): PLA is a method used to detect protein-protein interactions. It relies on the binding of two antibodies to the proteins of interest, followed by the ligation of DNA strands attached to the antibodies. The ligated DNA strands are then amplified using PCR and visualized using fluorescence microscopy. PLA can provide information about the spatial and temporal co-localization of proteins involved in specific interactions.
Immunoprecipitation (IP): Immunoprecipitation is a technique used to isolate and purify a specific protein or protein complex from a mixture. It involves the use of antibodies that specifically bind to the protein of interest. The antibody-protein complex is then precipitated using protein A or protein G beads. This method allows for the characterization and analysis of protein-protein interactions, post-translational modifications, and protein function.
1. Western blot
2. Enzyme-linked immunosorbent assay (ELISA)
3. Immunofluorescence
4. Immunohistochemistry
5. Flow cytometry
6. Mass spectrometry
7. Protein microarray
8. Surface plasmon resonance (SPR)
9. Isothermal titration calorimetry (ITC)
10. Bio-layer interferometry (BLI)
11. Protein crystallography
12. Nuclear magnetic resonance (NMR)
13. Differential scanning calorimetry (DSC)
14. Circular dichroism (CD)
15. Ultraviolet-visible spectroscopy (UV-Vis)
16. X-ray crystallography
17. Fluorescence resonance energy transfer (FRET)
18. Surface-enhanced Raman scattering (SERS)
19. Electrochemical methods
20. Biacore
GB/T 38477-2020:基因表达的测定 蛋白印迹法
农业部1485号公告-17-2010:转基因生物及其产品食用安全检测 外源基因异源表达蛋白质等同性分析导则
农业部1943号公告-4-2013:转基因植物及其产品成分检测 抗虫转Bt基因棉花外源蛋白表达量检测技术规范
农业农村部 公告第628号 7-2022:转基因植物及其产品成分检测 抗虫转Bt基因棉花外源Bt蛋白表达量ELISA检测方法
QB/T 5950-2023:酵母蛋白
GB/T 24355-2023:地理信息 图示表达
YY/T 1511-2017:胶原蛋白海绵
CNS 3282-2008:蛋白粉
QB/T 4222-2023:复合蛋白饮料
CNS 14452-2000:大豆蛋白
SB/T 10373-2012:胶原蛋白肠衣
YY/T 1849-2022:重组胶原蛋白
QB/T 4222-2011:复合蛋白饮料
QB/T 5961-2023:弹性蛋白肽
QB 2732-2005:水解胶原蛋白
FZ/T 50018-2013:蛋白粘胶纤维蛋白质含量试验方法
CNS 14453-2000:植物性蛋白
QB/T 5962-2023:抗冻蛋白肽粉
GB/T 23527-2009:蛋白酶制剂
FZ/T 50018-2013(2017):蛋白粘胶纤维蛋白质含量试验方法
WS/T 404.9-2018:临床常用生化检验项目参考区间 第9部分:血清C-反应蛋白、前白蛋白、转铁蛋白、β2-微球蛋白
LS/T 1815-2018:粮食电子地图 图示表达
CNS 7820-1981:化学试药(卵蛋白)
GH/T 1042-2007:脱酚棉籽蛋白
SB/T 10649-2012:大豆蛋白制品
GB/T 34793-2017:蛋白酶K
WS/T 464-2015:食物成分数据表达规范
GA/T 52-1993:蛋白泡沫灭火剂和氟蛋白泡沫灭火剂质量分等
SN/T 5422-2022:进出口纺织品 纤维定性分析 再生蛋白复合纤维(大豆蛋白复合纤维、牛奶蛋白复合纤维)
LY/T 2175-2013:林业信息图示表达规则和方法
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4.加急试验周期一般是五个工作日左右,部分样品有所差异
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