biological source
human plasma
assay
≥90% (SDS-PAGE)
form
lyophilized powder
mol wt
45 kDa
packaging
pkg of 0.5 mg
technique(s)
cell culture | mammalian: suitable
impurities
HIV and HBsAg, source material tested negative, Small proteolytic fragments, may contain traces
solubility
water: soluble ≥0.500 mg/mL, clear to slightly hazy, colorless
UniProt accession no.
shipped in
wet ice
storage temp.
−20°C
Quality Level
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General description
纤连蛋白1是由FN1基因编码的细胞外基质糖蛋白。它在血浆和细胞表面表达。FN1定位于人类染色体2q35。纤连蛋白的蛋白水解片段具有一个细胞结合结构域。血浆纤连蛋白具有两条多肽链,其通过在羧基末端附近存在的两个二硫键连接。每个多肽链为220-250 kDa。
Application
来自人血浆的纤连蛋白蛋白水解片段已被用作荧光团结合蛋白。它也已经用于固相结合测定中。
Biochem/physiol Actions
纤连蛋白可参与细胞黏附、生长、迁移、伤口愈合、凝血和转移。FN1基因突变可导致肾小球病变。它在细胞附着和扩散、细胞骨架控制、细胞形态和分化等方面发挥着重要作用。FN1还参与细胞外基质的形成、止血和血栓形成。纤连蛋白的蛋白水解片段在单核吞噬细胞功能中起着至关重要的作用。
纤连蛋白是一种高分子量糖蛋白,具有两个通过二硫键连接形成二聚体的亚基。 片段通过使用蛋白水解酶获得。 该45 kDa明胶结合片段是通过胰蛋白酶消化N末端70 kDa片段获得的,该片段由组织蛋白酶D消化产生。
该片段具有酸性pI值(4.9-5.3),并且不与肝素结合。由于链内二硫键和附着的碳水化合物,该结构域对蛋白水解具有抗性。链内二硫键对于与明胶结合至关重要,而复杂的、分支的、天冬酰胺连接的碳水化合物则是非必需。该片段结合可C1q,但不与血纤蛋白结合。
该片段具有酸性pI值(4.9-5.3),并且不与肝素结合。由于链内二硫键和附着的碳水化合物,该结构域对蛋白水解具有抗性。链内二硫键对于与明胶结合至关重要,而复杂的、分支的、天冬酰胺连接的碳水化合物则是非必需。该片段结合可C1q,但不与血纤蛋白结合。
Preparation Note
该产品用蔗糖作为冷冻保护剂从磷酸盐缓冲液中冻干获得。 原始材料的HIV、HCN和HBsAg抗体测试均为阴性。 它可以0.5 mg/mL的浓度溶于水中,并产生透明至微浑浊的溶液。
Disclaimer
该产品应储存在-20°C。
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
高风险级别生物产品--人源产品
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