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重要文件

B8894

Sigma-Aldrich

乙酰化白蛋白 来源于牛血清

protease free, for molecular biology

同義詞:

Ac-BSA

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About This Item

CAS號碼:
EC號碼:
MDL號碼:
分類程式碼代碼:
12352202
NACRES:
NA.27

生物源

bovine

品質等級

等級

for molecular biology

產品線

BioReagent

形狀

solution

純化經由

heat shock fractionation

包含

does not contain stabilizer or preservative

來源

USA origin

濃度

20 mg/mL in H2O

技術

FISH: suitable

雜質

HIV I and HIVII, HCV and HBsAg, tested negative

UniProt登錄號

異物活動

DNase free
DNase, RNase, NICKase and protease, none detected
NICKase free
Protease free
RNase free

儲存溫度

−20°C

基因資訊

bovine ... ALB(280717)

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一般說明

Serum albumin is the most extensive plasma protein in the circulatory system. It is produced within the liver and exported as a non-glycosylated protein to the blood plasma. The molecular weight of native serum albumin is around 66 kDa. Native serum albumin is a negatively charged protein.

Acetylation of bovine serum albumin particularly modifies lysine (Lys) residues with elevated frequency, with lesser degrees of modification of serine (Ser) and threonine (Thr) residues. MALDI-TOF mass spectrometry analysis of acetylated BSA has indicated an increased MW of about 3000, compared to native BSA (Ostatná, V. et al., J. Electroanalytical Chem., 821, 97-103 (2018)).. This acetylation process also derivatizes similar amino acid residues in any trace contaminating nucleases in the BSA, to inactivate that nuclease activity. This makes acetylated BSA useful in molecular biology applications where trace nuclease activity must be minimized.

應用

Acetylated BSA has been used as a component of the reaction mixture for adapter ligation. In addition, this B8894 acetylated BSA product has been used in other applications, such as:
  • In cDNA library preparation (Hafner, M. et al., RNA, 17(9), 1697-1712 (2011))
  • As a blocking agent with streptavidin beads used for capture of biotinylated RNA (Winz, M.-L. et al., Nat. Protocol., 12(1), 122-149 (2017))
乙酰化的目的在于灭活 BSA 中通常存在的核酸酶。乙酰化 BSA 不能用作蛋白质标准品,因为酪氨酸残基乙酰化使得 Lowry 分析和其他类似蛋白质检测法无法显色。

生化/生理作用

Native serum albumin plays a major role in maintaining the pH and osmotic pressure of the blood. It is also involved in transporting a diverse range of endogenous and exogenous metabolites, such as amino acids, fatty acids, drugs, steroids and metal ions. Native serum albumin can have a role in modulating the levels of Ca2+ and Mg2+ metals in blood.

特點和優勢

This acetylated BSA product has been tested for the following properties:
  • DNase-free / Exonuclease-free
  • Nickase-free / Endonuclease-free
  • Protease-free
  • RNase-free

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


分析證明 (COA)

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Fan Guo et al.
Cell research, 27(8), 967-988 (2017-06-18)
Single-cell epigenome sequencing techniques have recently been developed. However, the combination of different layers of epigenome sequencing in an individual cell has not yet been achieved. Here, we developed a single-cell multi-omics sequencing technology (single-cell COOL-seq) that can analyze the
Ivan Haralampiev et al.
Nature communications, 11(1), 4355-4355 (2020-08-30)
The genome of influenza A viruses (IAV) is encoded in eight distinct viral ribonucleoproteins (vRNPs) that consist of negative sense viral RNA (vRNA) covered by the IAV nucleoprotein. Previous studies strongly support a selective packaging model by which vRNP segments are
Bill X Huang et al.
Journal of the American Society for Mass Spectrometry, 15(8), 1237-1247 (2004-07-28)
Serum albumin is the principal transporter of fatty acids that are otherwise insoluble in circulating plasma. While the crystal structure of human serum albumin (HSA) as well as its binding with fatty acids has been characterized, the three dimensional structure
Markus Hafner et al.
Methods (San Diego, Calif.), 44(1), 3-12 (2007-12-26)
Distinct classes of small RNAs, 20-32 nucleotides long, play important regulatory roles for diverse cellular processes. It is therefore important to identify and quantify small RNAs as a function of development, tissue and cell type, in normal and disease states.
Anna Maria Sole Giordano et al.
The Journal of experimental medicine, 219(4) (2022-03-10)
Aberrant induction of type I IFN is a hallmark of the inherited encephalopathy Aicardi-Goutières syndrome (AGS), but the mechanisms triggering disease in the human central nervous system (CNS) remain elusive. Here, we generated human models of AGS using genetically modified

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