Xylan Fluorescein (FITC labeled Xylan) |
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XL-201 | Xylan Fluorescein , MW 30k |
Description:
Xylan is labeled with Fluorescein, Ex/Em wavelength 494/518 nm.
Purity: >95% powder.
Degree of substitution: 1 mol % substitution and at least one dye molecule per polymer.
Xylan labeled with other types of fluorescent dyes or biomolecular probes may be offered through our custom synthesis.
Literature:
1) Pea Xyloglucan and Cellulose, Plant Physiol, 1987, 83(2): 384–389.
木聚糖(Xylan)为多聚五碳糖,是半纤维素的一种,广泛存在于植物细胞壁中,是自然界含量仅次于纤维素的碳水化合物。木聚糖的结构单元是木糖,通过木糖苷键连接的木糖长链成为主链,在主链上部分基团被侧链基团取代,这些侧链基团有乙酰基、阿拉伯糖基、半乳糖基、葡萄糖醛酸基、香豆酸、阿魏酸等,木聚糖再通过侧链基团与植物的其余成分如纤维素、木质素、果胶相连接形成致密的结构,共同构成了植物体的支持骨架。