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聚集蛋白聚糖 来源于牛关节软骨

lyophilized powder

别名:

Aggrecan Protein

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About This Item

MDL號碼:
分類程式碼代碼:
12352202
NACRES:
NA.75

生物源

bovine articular cartilage

品質等級

形狀

lyophilized powder

包裝

glass bottle of 1 mg

技術

cell culture | mammalian: suitable

雜質

salt, essentially free

顏色

white

溶解度

H2O: 2 mg/mL

UniProt登錄號

運輸包裝

wet ice

儲存溫度

−20°C

基因資訊

應用

聚集蛋白聚糖是软骨结构和关节功能的关键成分。 研究人员正在研究其合成和降解,以了解其在关节损伤疾病和衰老过程中软骨退化中的作用。

生化/生理作用

这种分子产生一种刚性、可逆、耐压缩的可变形凝胶。 它与透明质酸结合形成非常大的大分子复合物,该复合物具有增加的流体动力学体积和显著增加的溶液相对粘度(30-40%)。

成分

聚集蛋白聚糖是软骨细胞外基质的主要结构蛋白聚糖。 它是一种大蛋白聚糖,分子量大于 2,500 kDa,由连接核心蛋白的大约 100-150 条氨基聚糖链组成。 这些氨基聚糖链大多为软骨素/硫酸皮肤素。聚集蛋白聚糖包含G1、G2 和 G3三个球状结构域,它们与聚集和透明质素(hylauronan )结合、细胞粘附和软骨细胞凋亡有关。

注意

在 -20°C 储存。按供货时的状态储存,如果储存得当,这种粉末在 3 年内几乎没有分解。

準備報告

该产品从关节软骨中提取,经过化学纯化、水透析,并在冻干前进行0.2 μm过滤。 一旦冻干,这种粉末基本上不含盐。 产品在水中的溶解度为 2 mg/mL。

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)


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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访问文档库

Doege, K.J. et al.
Guidebook to the Extracellular Matrix and Adhesion Proteins, 17-18 (1993)
H Hedlund et al.
The Journal of biological chemistry, 274(9), 5777-5781 (1999-02-20)
Aggrecan, the predominant large proteoglycan of cartilage, is a multidomain macromolecule with each domain contributing specific functional properties. One of the domains contains the majority of the keratan sulfate (KS) chain substituents and a protein segment with a proline-rich hexapeptide
C J Billington et al.
The Biochemical journal, 336 ( Pt 1), 207-212 (1998-11-10)
The breakdown of aggrecan in cartilage is, in part, mediated by an enzyme named aggrecanase that cleaves within the interglobular domain of the molecule between a glutamic residue and an alanine residue. Although the enzyme cleavage site has been identified
L Cao et al.
Matrix biology : journal of the International Society for Matrix Biology, 17(5), 379-392 (1998-11-20)
The proteoglycan aggrecan is a major component of cartilage, and degradation of aggrecan is associated with aging and a number of pathological conditions. To investigate the effects of the accumulation of G1 domain from degraded aggrecan, we overexpressed the G1
M C Bolton et al.
The Biochemical journal, 337 ( Pt 1), 77-82 (1998-12-17)
The rates of incorporation of radiolabelled leucine into aggrecan and link protein have been measured in human articular cartilage of different ages. Aggrecan and link protein were purified in the A1 fraction of CsCl gradients as a result of their

商品

There are five identified glycosaminoglycan chains (see Figure 1): Hyaluronan is not sulfated, but the other glycosaminoglycan chains contain sulfate substituents at various positions of the chain.

There are five identified glycosaminoglycan chains (see Figure 1): Hyaluronan is not sulfated, but the other glycosaminoglycan chains contain sulfate substituents at various positions of the chain.

Glycosaminoglycans are large linear polysaccharides constructed of repeating disaccharide units.

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