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Top Quality Gilead Sciences - L-Histidine Cas: 71-00-1 98.5% White crystals or crystalline powder – XD BIOCHEM

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Top Quality Gilead Sciences - L-Histidine Cas: 71-00-1 98.5% White crystals or crystalline powder – XD BIOCHEM Detail:

Catalog Number XD90301
Product Name L-Histidine

CAS

71-00-1

Molecular Formula

C6H9N3O2

Molecular Weight

155.15
Storage Details Ambient

Harmonized Tariff Code

29332990

 

Product Specification

Assay 98.5% min
Appearance White crystals or crystalline powder
Grade USP39
Specific rotation +12.6 ° to +14.0 °
Identification Infrared absorption
pH 7.0 – 8.5
SO4 <=0.03%
Fe <=30ppm
Loss on Drying <=0.2%
Residue on Ignition <=0.1%
Cl <=0.05%
Heavy metals ( PB ) <=15ppm
Related componds Not more than 0.5% of any individual impurity is found; Not more than 2.0% of total impurities is found

 

he quadruplex forming G-rich sequences are unevenly distributed throughout the human genome. Their enrichment in oncogenic promoters and telomeres has generated interest in targeting G-quadruplex (GQ) for an anticancer therapy. Here, we present a quantitative analysis on the conformations and dynamics of GQ forming sequences measured by single molecule fluorescence. Additionally, we relate these properties to GQ targeting ligands and G4 resolvase 1 (G4R1) protein binding. Our result shows that both the loop (non-G components) length and sequence contribute to the conformation of the GQ. Real time single molecule traces reveal that the folding dynamics also depend on the loop composition. We demonstrate that GQ-stabilizing small molecules, N-methyl mesoporphyrin IX (NMM), its analog, NMP and the G4R1 protein bind selectively to the parallel GQ conformation. Our findings point to the complexity of GQ folding governed by the loop length and sequence and how the GQ conformation determines the small molecule and protein binding propensity.


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We've our have sales staff, style and design staff, technical crew, QC team and package workforce. We've strict excellent control procedures for each system. Also, all of our workers are experienced in printing field for Top Quality Gilead Sciences - L-Histidine Cas: 71-00-1 98.5% White crystals or crystalline powder – XD BIOCHEM , The product will supply to all over the world, such as: United Arab Emirates, kazan, Nepal, For many years, we now have adhered to the principle of customer oriented, quality based, excellence pursuing, mutual benefit sharing. We hope, with great sincerity and good will, to have the honor to help with your further market.
  • The factory technical staff not only have high level of technology, their English level is also very good, this is a great help to technology communication.
    5 Stars By Honorio from Mozambique - 2018.07.27 12:26
    High production efficiency and good product quality, fast delivery and completed after-sale protection, a right choice, a best choice.
    5 Stars By Mary from Bogota - 2017.02.18 15:54
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    Top Quality Gilead Sciences - L-Histidine Cas: 71-00-1 98.5% White crystals or crystalline powder – XD BIOCHEM