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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
-20℃
- 保质期:
12个月
- 英文名:
Recombinant Fatty Acid Binding Protein 4, Adipocyte (FABP4)
- 库存:
1000
- 供应商:
上海信裕
| Organism species | Mus musculus (Mouse) |
| Product No. | |
| Source | Eukaryotic expression |
| Host | 293F cell |
| Purity | > 95% |
| UOM | 50ug |
| Predicted Molecular Mass | 16.1KDa |
| Concentration | n/a |
| Applications | SDS-PAGE; WB; ELISA; IP. |
| Endotoxin Level | <1.0EU per 1µg (determined by the LAL method) |
| Residues | Cys2~Ala132 with a his-tag |
| Formulation | Supplied as lyophilized form in PBS, pH7.4, containing 5% trehalose, 0.01% sarcosyl. |
CDAFVGTWK LVSSENFDDY MKEVGVGFAT RKVAGMAKPN MIISVNGDLV TIRSESTFKN TEISFKLGVE FDEITADDRK VKSIITLDGG ALVQVQKWDG KSTTIKRKRD GDKLVVECVM KGVTSTRVYE RA
Stability Test: The thermal stability is described by the loss rate of the target protein. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37oC for 48h, and no obvious degradation and precipitation were observed. (Referring from China Biological Products Standard, which was calculated by the Arrhenius equation.) The loss of this protein is less than 5% within the expiration date under appropriate storage condition.
Protein bands: 10kDa, 14kDa, 18kDa, 22kDa, 26kDa, 33kDa, 44kDa and 70kDa.
Double intensity bands: The 26kDa, 18kDa, 10kDa bands are at double intensity to make location and size approximation of proteins of interest quick and easy.
Ready-to-use: No need to heat, dilute or add reducing agents before use.
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文献和实验的全新分子机制。研究发现,肥胖时脂肪细胞分泌的脂肪细胞脂肪酸结合蛋白(AFABP/FABP4)会结合血浆转铁蛋白(Transferrin, TSF),干扰铁转运功能,导致血清非转铁蛋白结合铁(NTBI)升高,引发肠干细胞铁过载。铁过载抑制PPARα信号,导致损伤后过氧化物酶体功能下降,进一步扰乱Wnt/Notch分化相关信号平衡,最终阻断成熟上皮分化,拖慢肠道修复。研究团队通过Cre依赖AAV在脂肪组织中定点提高AFABP,直接在瘦鼠身上复现了相关表型,为"脂肪-肠道"器官间通讯提供了强有力的因果
的,但是这结果是不是假阳性呢?还得做个阴性对照。阴性对照如何设置呢?考虑到整个实验体系会出现 beads、抗X抗体、诱饵蛋白 X、靶蛋白 Y(co-IP): 可能出现的假阳性来源 需要的阴性对照 抗 X 抗体结合非特异的蛋白 与 IP 一抗种属亚型相同的免疫球蛋白(比如,抗 X 抗体是 Mouse IgG,阴性对照可使用 Mouse 免疫球蛋白) beads 对蛋白的非特异结合* 同上,此外还可进行 Pre clear,IP 正式实验前排除非特异结合蛋白。如果使用琼脂
。当某一个标签的使用,一是能构成表位利于纯化和检测;二是构成独特的结构特征(结合配体)利于纯化。组氨酸残基侧链与固态的镍有强烈的吸引力,可用于固定化金属螯合层析(IMAC),对重组蛋白进行分离纯化。使用His-tag有下面优点:1.标签的分子量小,只有~0.84KD,而GST和蛋白A分别为~26KD和~30KD,一般不影响目标蛋白的功能;2.His标签融合蛋白可以在非离子型表面活性剂存在的条件下或变性条件下纯化,前者在纯化疏水性强的蛋白得到应用,后者在纯化包涵体蛋白时特别有用,用高浓度的变性剂溶解
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