推薦產品
產品名稱
粒细胞集落刺激因子 人, G-CSF, recombinant, expressed in E. coli, suitable for cell culture
生物源
human
品質等級
重組細胞
expressed in E. coli
化驗
≥95% (SDS-PAGE)
形狀
lyophilized powder
效力
0.01-0.1 ng/mL
品質
endotoxin tested
分子量
18.8 kDa (175 amino acids including N-terminal methionine)
包裝
pkg of 5 and 25 μg
技術
cell culture | mammalian: suitable
雜質
<1 EU/μg (LAL test)
UniProt登錄號
儲存溫度
−20°C
基因資訊
human ... CSF3(1440)
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相關類別
一般說明
人类粒细胞集落刺激因子(GCSF)基因定位于人染色体17q21.1。结构上,GCSF由四个α-螺旋束组成。
應用
人类粒细胞集落刺激因子已被用于:
- 培养人中性粒细胞
- 作为CD34+细胞双层粒-巨噬细胞集落形成单元(CFU-GM)培养体系的一种生长因子组分
- 检测其对慢性肝损伤模型的保护作用
生化/生理作用
人类粒细胞集落刺激因子(GCSF)可与粒细胞集落刺激因子受体(GCSFR)的免疫球蛋白(Ig)结构域发生特异性相互作用。
粒细胞集落刺激因子(G-CSF)是受限嗜中性粒细胞系的造血细胞的增殖、分化、存活和激活因子。它是由被内毒素(LPS)激活的巨噬细胞、被TNF-α和IFNγ激活的单核细胞、被IL-1或TNF-α945;激活的成纤维细胞和内皮细胞以及被IL-1或LPS激活的骨髓基质细胞产生的。这表示,在炎症过程中,内毒素刺激组织巨噬细胞产生G-CSF,同时还产生多种其他细胞因子,包括IL-1和TNF-α,这些细胞因子进一步刺激内皮细胞和成纤维细胞释放更多的G-CSF。G-CSF还可以与IL-3发挥协同作用,缩短早期造血祖细胞的G0期。除了同名的增殖活性外,G-CSF还作用于成熟的中性粒细胞,以提高其存活率并刺激其肿瘤杀伤活性。人类G-CSF结合并激活130 kD至150 kD的糖蛋白单链受体(已被归类为造血(细胞因子)受体家族)、细胞因子I类或gp130相关细胞因子受体家族(尽管它显然不与gp130结合)。G-CSF受体存在于嗜中性粒细胞、响应G-CSF的髓样白血病细胞、嗜中性粒细胞系的骨髓细胞以及胎盘滋养层中,并且可以表达为可溶形式。通过可变剪接能够从单个基因合成两种形式的人G-CSF(177和174个氨基酸),但是鼠G-CSF只能表达为178个氨基酸这一种形式。人和鼠G-CSF具有73%的氨基酸序列同源性和完全交叉反应性。
外觀
每μg G-CSF添加50μg BSA,溶于10 mM HOAc溶液,经0.2 μm过滤和冻干处理制成粉末
分析報告
使用鼠成髓细胞系NFS-60在细胞增殖测定中对生物活性进行检测。
相關產品
產品號碼
描述
訂價
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)
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