
Product Name | Beta - Amyloid (1 - 16), HumanDAEFRHDSGYEVHHQK |
Size | 5 mg |
Catalog # | AS-24226 |
US$ | $351 |
Purity | % Peak Area By HPLC ≥ 95% |
Proteins interactions with reactive oxygen agents may result in covalent modifications of amino acid residues in proteins, formation of protein-protein cross-linkages and oxidation of the protein backbone resulting in protein fragmentation. Oxidation targets for Aß (1-16) are the histidine residues coordinated to the metal ions. Copper is bound to Aß in senile plaque of Alzheimers disease with Aß (1-16) taking part in the coordination of the Cu2+ ions. Cu2+ and Zn2+ are linked with the neurotoxicity of Aß and free radical damage. | |
Detailed Information | ![]() ![]() |
Storage | -20°C |
References | Da Silva, GFZ. et al. J. Biol. Chem. 280, 16601 (2005); Kowalik-Jankowska, T. et al. J. Inorg. Biochem. 98, 940 (2004); Kowalik-Jankowska, T. et al. J. Inorg. Biochem. 95, 270 (2003). |
Molecular Weight | 1955 |
DAEFRHDSGYEVHHQK | |
Sequence(Three-Letter Code) | H - Asp - Ala - Glu - Phe - Arg - His - Asp - Ser - Gly - Tyr - Glu - Val - His - His - Gln - Lys - OH |
Product Citations | Miller, A. et al. (2011). Behavior of β-amyloid 1-16 at the air-water interface at varying pH by nonlinear spectroscopy and molecular dynamics simulations. J Phys Chem 10.1021/jp110103j. Solorzano-Vargas, R.S. et al. (2008). Epitope mapping and neuroprotective properties of a human single chain FV antibody that binds an internal epitope of amyloid-beta 1-42. Mol Immunol 45, 881.Minicozzi, V. et al. (2008). Identifying the minimal Cu and Zn binding site sequence in amyloid beta peptides. J Biol Chem 10.1074/jbc.M707109200.Osada, Y. et al. (2004). CLAC binds to amyloid Peptides through the positively charged amino acid cluster within the collagenous domain 1 and inhibits formation of amyloid fibrils. J Biol Chem 280, 8596.Cottingham, MG. et al. (2004). Rapid method for measurement of surface tension in multiwell plates. Lab Methods 84, 523. |
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一般来讲,进行real-time qPCR MasterMix都是2×的浓缩液,只需要加入模板和引物就可以。由于real-time qPCR灵敏度高,所以每个样品至少要做3个平行孔,以防在后面的数据分析中,由于Ct相差较多或者SD太大,无法进行统计分析。通常来讲,反应体系的引 物终浓度为100-400mM;模板如果是总RNA一般是10ng-500,如果cDNA,通常情况下是1ul或者1ul的10倍稀释液,要根据目的基因 的表达丰度进行调整。当然这些都是经验值,在操作过程中,还需要根据所用MasterMix,模板和引物的不同进行优化,达到一个最佳反应体系。在反应体 系配置过程中,有下面几点需要注意:
1. MasterMix不要反复冻融,如果经常使用,最好溶解后放在4度。
2. 更多的配制Mix进行,减少加样误差。最好能在冰上操作。
3. 每管或每孔都要换新枪头!不要连续用同一个枪头加样!
4. 所有成分加完后,离心去除气泡。
5. 每个样品至少3个平行孔。
上游引物:5′-GAATGTGTGTACTGCAAGCA-3′
下游引物:5′-GTTGTATTGCTGTTCTAATGTTGT-3′
Taqman探针:5′-FAM-CAGCATATGGATTCCCATCTC-TAMRA-3′
扩增的产物长度是:195bp(nt188-382)
HPV16全长序列:贴在附件中
磕头跪谢!!!
HPV16.txt(9.91k)

