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Key Documents

D8906

Sigma-Aldrich

硫酸葡聚糖 钠盐 来源于明串珠菌

for molecular biology, average Mw >500,000 (dextran starting material), contains 0.5-2% phosphate buffer

别名:

6-O-(6-O-β-D-吡喃葡萄糖基-β-D-吡喃葡萄糖基)-D-葡萄糖, 甘露三糖

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About This Item

CAS号:
MDL號碼:
分類程式碼代碼:
12352201
NACRES:
NA.31

生物源

synthetic

品質等級

等級

for molecular biology

形狀

powder

分子量

average Mw >500,000 (dextran starting material)

包含

0.5-2% phosphate buffer

成份

Sulfur Content, 16.0-19.0%

技術

FISH: suitable
FTIR: suitable

顏色

off-white

有用的pH值範圍

6.0-8 (10 g/L)

溶解度

H2O: 100 mg/mL

適合性

suitable for marker for electrophoresis
suitable for nucleic acid hybridization

應用

genomic analysis
sample preparation

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一般說明

硫酸葡聚糖(Dextran sulfate, DSS)是人工合成的葡聚糖(葡萄糖分子组成的复杂多糖)硫酸酯化衍生物。DSS是高度分支的生物相容性多糖,具有1–6和1–4糖苷键,每个葡糖残基约含2.3个硫酸基团。硫酸葡聚糖是一种硫酸酯化多糖,分子量范围5-1,400 kDa。广泛用于分子生物学和生物化学研究,特别适合胃肠道研究。硫酸葡聚糖是备受认可的炎症性肠病(IBD)造模剂,可诱发小鼠的结肠炎。硫酸葡聚糖是备受认可的炎症性肠病(IBD)造模剂,可诱发小鼠的结肠炎。通过调节浓度和给药频率,可制造急性、慢性和复发IBD模型。另外,硫酸葡聚糖也用于多种分子生物学实验,包括沉淀脂蛋白、加快DNA探针杂交、促进核糖体分离。值得一提的是,硫酸葡聚糖还可作为好用的壳聚糖交联剂,用于制备药物控释系统的微颗粒和纳米颗粒。除此之外,硫酸葡聚糖还在许多研究领域发挥重要作用,特别是在免疫学和病毒学中,它可激活免疫应答、增强体液免疫、影响B淋巴细胞活化、影响胸腺细胞对凝集素的反应。

應用

硫酸葡聚糖用于

  • 作为分子量标记,用于凝胶电泳测定纯化多糖的纯度和均一性
  • 作为荧光原位杂交(FISH)实验杂交缓冲液组分,用于DNA检测和分析
葡聚糖硫酸酯具有许多用途,当进行核酸杂交时可用作缩短探针退火所需时间的促进剂。当杂交速率成为检测稀有序列的限制因子时或当可用探针数量有限时,可在杂交缓冲液中加入葡聚糖硫酸酯。葡聚糖硫酸酯通过从聚合物所占溶液体积中扣除核酸而发挥促进剂的作用,从而提高有效的探针浓度。

生化/生理作用

硫酸葡聚糖是一种硫酸酯化多糖,可稳定地诱导实验性急性和慢性结肠炎。它被认为主要通过直接作用于上皮细胞,引起黏膜损伤和炎症。进而激活巨噬细胞和T淋巴细胞,最终导致细胞因子介导的细胞毒性。

特點和優勢

  • 适用于核酸杂交&分子生物学
  • 硫酸葡聚糖平均分子量>500,000
  • 硫含量16.0-19.0 %
  • 用途广泛,适用于各种实验室和研究应用

適合性

已测试了在核酸杂交中的适应性

其他說明

为了全面了解我们针对客户研究提供的各种葡聚糖产品,建议您访问我们的碳水化合物分类页面。
如需了解生化试剂系列的更多信息,请填写此表

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 2

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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Robert N Duncan et al.
PloS one, 10(12), e0145810-e0145810 (2015-12-30)
Wnt signaling regulates multiple aspects of vertebrate central nervous system (CNS) development, including neurogenesis. However, vertebrate genomes can contain up to 25 Wnt genes, the functions of which are poorly characterized partly due to redundancy in their expression. To identify
Benjamin R King et al.
Journal of virology, 92(12) (2018-04-13)
Lymphocytic choriomeningitis mammarenavirus (LCMV) is an enveloped, negative-strand RNA virus that causes serious disease in humans but establishes an asymptomatic, lifelong infection in reservoir rodents. Different models have been proposed to describe how arenaviruses regulate the replication and transcription of
Hiroki Ikeda et al.
Nature communications, 8(1), 1616-1616 (2017-11-22)
Higher-order chromatin organization controls transcriptional programs that govern cell properties and functions. In order for pluripotent stem cells (PSCs) to appropriately respond to differentiation signals, developmental gene loci should be structurally and spatially regulated to be readily available for immediate
Bhavana Tiwari et al.
Current biology : CB, 27(19), 3010-3016 (2017-10-03)
Retrotransposons are a pervasive class of mobile elements present in the genomes of virtually all forms of life [1, 2]. In metazoans, these are preferentially active in the germline, which, in turn, mounts defenses that restrain their activity [3, 4].
Danielle L Cullinane et al.
Reproduction (Cambridge, England), 149(1), 43-54 (2014-10-23)
The protamine 1 (Prm1) and sperm mitochondria-associated, cysteine-rich protein (Smcp) mRNAs exemplify a widespread pattern of mRNA-specific regulation of mRNA translation in post-meiotic spermatogenic cells, spermatids. Both mRNAs are transcribed and initially stored in free-mRNPs in early spermatids, and translated

商品

Available Fluorescent in situ hybridization (FISH) procedures, reagents and equipment.

实验方案

Dextran sulfates are supplied as the sodium salt forms, making them soluble and stable in water. Dextran sulfate contains approximately 17% sulfur which is equivalent to approximately 2.3 sulfate groups per glucosyl residue.

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