L-selenocysteine

Min.Order / FOB Price:Get Latest Price

1 Kilogram	FOB Price:USD 1.0000 -3.0000

1 Kilogram

FOB Price:USD 1.0000 -3.0000

Min.Order :1 Kilogram
Purity: 99%
Payment Terms : T/T,,MoneyGram,Other

Keywords

3-Selenylalanine Seleno-L-cysteine L-selenocystein

Quick Details

Appearance:liquid
Application:
PackAge:as your request
ProductionCapacity:10|Kilogram|Day
Storage:stay in dry, cool and well-sealed
Transportation:EMS,HK EMS,FEDEX,DHL,TNT

Superiority:

Hebei yanxi chemical co., LTD is a professional research, development and production of lead acetate benzene acetamide enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low carbon environmental protection safety smooth" call and support form, the bold innovation on traditional production equipment and technology, using "high temperature alkali type production method" and "plastic basin of crystallization technology, on the basis of reducing the product cost make the product quality to achieve the same industry leading level.In the company all staff's efforts, in shandong, henan province guangdong South America Europe the United States for decades in Mexico, Brazil, South Africa, Zimbabwe and other places set up several partners, quality inspection department in the company, under the close supervision of a production and sales in the form of "label", provide the fastest speed convenient service for users across the country.

In "advancing with The Times, and the city every day, with the advancement of" under the guidance of the core ideas, adhering to the "relying on scientific and technological innovation, the development of circular economy" of the enterprise purpose, established in the market, enhance strength, go the way of scientific and sustainable development of environmental protection, relying on the national technology research and development center, increasing spending on research and development based on the domestic market, expand the international market, manufacturing high quality products, sincere service society, toward a modern, ecology, science and technology of the domestic first-class, the world's advanced chemical enterprises

Details:

Selenium is a kind of amino acids cysteine, exists in a few enzymes, such as glutathione peroxidase, thyroxine 5 '- iodine enzyme, thioredoxin reductase, formate dehydrogenase, glycine reductase and some hydrogenase etc.The structure of selenocysteine is similar to that of cysteine, except that the sulfur atom is replaced by selenium.Proteins containing selenium cysteine residues are called selenium proteins.In the genetic code, the encoding of selenocysteine is UGA (i.e., opal stop codon), usually used as a termination pin.But if there is a SElenoCysteine Insertion Sequence in the mRNA (SECIS), UGA is used as the encoding of SElenoCysteine.The SECIS sequence is determined by a specific nucleotide sequence and a secondary structure formed by base pairs.In the real bacteria, SECIS is directly following the UGA code, in the same reading box as UGA.In paleobacteria and eukaryotic organisms, SECIS in the 3'- untranslated region of mRNA (3' -utr) can guide multiple UGA codes to encode selenocysteine residues.When the cells are deficient in selenium, the selenium-protein translation is suspended from the UGA code, becoming an incomplete and unfunctional protein.Like other amino acids in the cell, selenium cysteine has a specific tRNA.This tRNASec, compared with other standard tRNA have some differences, the most obvious is to have a contains eight bases (bacteria) or 9 base (eukaryotes) receiving stem (stem), a long variable arm, and a few highly conservative base substitution.TRNASec initially by serine tRNA ligase loading a serine, but this Ser - tRNASec and cannot be used in the translation, because it cannot be the usual translation factor identification (bacteria EF - Tu, alpha (eEF) in eukaryotes.It can be replaced by a selenium cysteine synthase containing pyridoxal phosphate, which can be replaced by selenium cysteamine.Finally, the sec-trnasec specificity is combined with another translation extension factor SelB or mSelB, which is transported to the ribosome that is currently being translated into the selenium-protein mRNA.Another encoding amino acid, which is not contained in 20 common amino acids, is pyrrolidine.

Basic information error correction

Chinese name: selene-l-cysteine Chinese aliases: 3-selene-l-alanine English name: l-selenocysteine English alias: 3-selenylalanine;Seleno - L - cysteine;L - selenocystein;(2 r) - 2 - Amino - 3 - (hydroseleno) propionic acid;3 - (Hydroseleno) alanine;More English alias CAS number: 10236-58-5 molecular formula: C3H7NO2Se molecular weight: 168.05300 precision quality: 168.96400 PSA: 63.32000

Materialized property error correction

Boiling point: 440.2 - C at 760mmHg flash point: 220 - C