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- 详细信息
- 文献和实验
- 技术资料
- 库存:
99
- 英文名:
Hamster FGF21 Protein (His Tag)
- 保质期:
12个月
- 供应商:
北京义翘神州科技股份有限公司
- 保存条件:
-20℃ to -80℃
- 规格:
100 µg
> 95 % as determined by SDS-PAGE.
内毒素
< 1.0 EU per μg protein as determined by the LAL method.
生物活性
Testing in progress
蛋白构建
A DNA sequence encoding the hamster FGF21 (XP_005084765.1) (Met1-Ser209) was expressed with a polyhistide tag at the C-terminus.
NP No.
XP_005084765.1
表达宿主
HEK293 Cells
种属
Hamster
预测 N 端
Arg29
分子量
The recombinant hamster FGF21 consists of 192 amino acids and predicts a molecular mass of 21.16 kDa.
缓冲液
Lyophilized from sterile PBS, pH 7.4
Please contact us for any concerns or special requirements.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the hard copy of CoA.
运输方式
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
稳定性 & 储存条件
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
复溶
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
FGF21 背景信息
Fibroblast growth factor 21 (FGF21) is a member of the fibroblast growth factor (FGF) family. FGF family members possess broad mitogenic and cell survival activities and are involved in a variety of biological processes including embryonic development, cell growth, morphogenesis, tissue repair, tumor growth and invasion. FGF-21 has a hydrophobic amino terminus, which is a typical signal sequence, and appears to be a secreted protein. The metabolic regulator fibroblast growth factor 21 (FGF21) has antidiabetic properties in animal models of diabetes and obesity. FGF21 is a novel adipokine associated with obesity-related metabolic complications in humans. The paradoxical increase of serum FGF21 in obese individuals, which may be explained by a compensatory response or resistance to FGF21, warrants further investigation. FGF-21, which we have identified as a novel metabolic factor, exhibits the therapeutic characteristics necessary for an effective treatment of diabetes.
全称
fibroblast growth factor 21
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文献和实验His 标签蛋白纯化效果不理想,宝宝心里苦呀。今天,小编来跟大家一起找找原因。 纯化所得组分中没有收集到重组的His标签蛋白。该问题主要可以分为以下两个方面: 1、His标签蛋白没有结合到填料上就流穿了 原因一 超声的功率不对。超声功率过高,容易导致蛋白炭化;功率过低,蛋白释放不出来。 建议 改变超声功率,同时可以在超声前加入溶菌酶。 原因二 结合缓冲液条件不合适。 建议 检查结合缓冲液中是否有影响结合的因素,如:金属离子螯合剂、强还原剂、过高的咪唑浓度。同时,优化缓冲液的pH、盐
QIAgene Expression Kit——再也不为重组蛋白的表达效率发愁 据Protein Database的最新数据表明,目前已知的人类蛋白有35,000种(包括splice variants),大约33%的蛋白正处于研究中,但是只有8%的蛋白能够成功表达。统计数据同时显示,目前克隆,表达,纯化的成功率只维持在54%,74%,59%。所以说,在蛋白表达的漫漫征途中,拿不到想要的蛋白是一件非常普遍的事情。举一个例子来说对于目标蛋白不表达或表达量低这个常见问题,需要排除或检查的因素就太多
一. 实验目的1. 掌握重组蛋白诱导表达的方法。2. 亲和层析法纯化His 标记的融合蛋白。二. 实验原理将目的基因连接在表达载体后,通过加入诱导剂IPTG诱导目的基因表达。表达载体除具有蛋白表达所需要的启动子外,在终止子前有6个His编码序列,便于蛋白的亲和层析纯化。亲和层析以蛋白质或生物大分子和结合在介质上的配基间的特异亲和力为基础。本实验采用磁座和结合有Ni2+的磁珠在变性或非变性条件下对融合蛋白进行分离纯化,只需通过“结合-清洗-洗脱”三个简单的操作步骤就可完成。该系统可根据样本量灵活
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