EGF/Urogastrone/URG, Human, Recombinant
英文名稱:EGF/Urogastrone/URG, Human, Recombinant
貨號: PCK001
價格: ¥880 ¥680 ¥380 ¥180 ¥1080
產(chǎn)品信息
產(chǎn)品形態(tài) | 粉末 |
產(chǎn)品規(guī)格 | 500μg / 100μg / 50μg / 10μg / 1mg |
別名 | Urogastrone;URG |
物種 | 人 |
表達宿主 | E.coli |
序列信息 | MNSDSECPLSHDGYCLHDGVCMYIEALDKYACNCVVGYIGERCQYRDLKWWELR with polyhistidine tag at the C-terminus. |
檢索號 | P01133.2 |
分子量 | 7.16 kDa |
表觀分子量 | 9-11 kDa |
標簽 | His-tag at the C-terminus |
生物活性 | Measure by its ability to induce 3T3 cells proliferation. The ED50 for this effect is 0.05-0.12 ng/mL. The specific activity of recombinant human EGF is approximately > 1.4 × 10^6 IU/mg. |
純度 | > 95% as determined by SDS-PAGE. Ni-NTA chromatography. |
內毒素 | < 0.1 EU per 1 μg of the protein by the LAL method. |
儲存條件 | Lyophilized protein should be stored at -5~-20℃ for 1 year. Upon reconstitution, store at 2-8℃ for up to 1 week. Further dilute in a buffer containing a carrier protein or stabilizer (e.g. 0.1% BSA, 10% FBS, 5% HSA or 5% trehalose solution), protein aliquots should be stored at -5~-20℃ or -80℃ for 3-6 months. |
運輸條件 | Ambient temperature or ice pack. |
有效期 | 12個月 |
制劑 | The protein was lyophilized from a 0.2 μm filtered solution containing 1 × PBS, pH 8.0. |
復融 | It is recommended to reconstitute the lyophilized protein in sterile water to a concentration not less than 100 μg/mL. Do Not Vortex! Vigorous shaking may impair the biological activity of the protein. |
背景介紹 | Epidermal growth factor (EGF) stimulates cell growth and differentiation by binding to its receptor, EGFR. Human EGF is a 6-kDa protein with 53 amino acid residues and three intramolecular disulfide bonds. EGF is present in various body fluids, including blood, milk, urine, saliva, seminal fluid, pancreatic juice, cerebrospinal fluid, and amniotic fluid. Biological activities ascribed to EGF include epithelial development, angiogenesis, inhibition of gastric acid secretion, fibroblast proliferation, and colony formation of epidermal cells in culture. |
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期刊:CURRENT MOLECULAR MEDICINE
DOI:10.2174/1566524023666230324135330
影響因子:2.500
引用產(chǎn)品: EGF/Urogastrone/URG, Human, Recombinant, FGF-2/bFGF/FGF-b (K128N), Human, Recombinant
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期刊:BIOCHEMICAL GENETICS
DOI:10.1007/s10528-022-10328-y
影響因子:2.400
引用產(chǎn)品: LNCaP clone FGC 細胞, DU 145 細胞, RPMI-1640 培養(yǎng)基, 特級胎牛血清, RWPE-1 細胞, K-SFM 培養(yǎng)基, EGF/Urogastrone/URG, Human, Recombinant
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期刊:EXPERIMENTAL AND MOLECULAR MEDICINE
DOI:10.1038/s12276-022-00848-3
影響因子:12.200
引用產(chǎn)品: MET-5A 細胞, EGF/Urogastrone/URG, Human, Recombinant
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期刊:APOPTOSIS
DOI:10.1007/s10495-022-01789-y
影響因子:5.600
引用產(chǎn)品: PC-9 細胞, A549 [A-549] 細胞, NCI-H1299 細胞, NCI-H1975 細胞, BEAS-2B 細胞, RPMI-1640 培養(yǎng)基, BEAS-2B細胞專用培養(yǎng)基, EGF/Urogastrone/URG, Human, Recombinant, FGF-2/ bFGF/ FGF-b (Q65I, C96S, N111G), Human, Recombinant
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Q1:官網(wǎng)的因子都是不含動物成分的么?
我們公司的因子都是重組的,是不含動物源成分的。
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Q2:細胞因子用無菌水配成了100ug/mL母液,用于實驗時,需要的終濃度為10ng/mL,可以用培養(yǎng)基直接稀釋?還是需要通過PBS(含5%海藻糖)進一步稀釋才行呢?
如果是直接做實驗,可以直接添加培養(yǎng)基進行稀釋配置。 如果是需要長時間保存的話,需要使用含載體蛋白(如0.1%BSA,10% FBS,5%HSA或5%海藻糖)的溶液進一步釋后分裝保存于-5~-20℃或者-80℃冰箱
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Q3:細胞因子加無菌水溶解后需要再次離心嗎?
加了無菌水后,如果沒有掛壁現(xiàn)象是不用離心的,如果您放置了一段時間,再次使用時是可以使用離心機離心的
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Q4:細胞因子離心前需要放置室溫嗎?
不用提前放置室溫.
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Q5:因子到貨了,里面有兩管溶液,一個是水,一個是海藻糖溶液,用哪一個稀釋呢?
1、將裝有細胞因子的管子放入小離心機內短暫離心20~30s(離心機最大轉速即可),使附著在管壁的微量蛋白聚集在管底; 2、先用無菌水溶解因子,很少量水即可溶解因子,注意計算溶解后濃度不低于100 μg/mL; 3、用贈送的含海藻糖的PBS溶液進一步稀釋到您實驗合適的濃度即可,然后分裝后放入-20℃以下保藏; 4、因子復融重懸過程應輕柔,不可以震蕩渦旋。
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Q6:收到細胞因子產(chǎn)品用什么溶劑復融?
1、細胞因子產(chǎn)品大部分為凍干形式發(fā)貨,少部分液體形式發(fā)貨; 2、凍干粉狀態(tài)的因子產(chǎn)品需指定溶劑復溶,請參考產(chǎn)品說明書【復融】方法,按照要求使用對應溶劑溶解,大部分因子為無菌水復融,少部分需要無菌水以外的特殊溶劑溶解的產(chǎn)品則隨貨會贈送相應的復融試劑;凍干粉溶解后如您需要進一步稀釋分裝,需使用含載體蛋白(如0.1% BSA,10%FBS,5%HSA 或 5% 海藻糖)的溶液進一步稀釋后分裝冷凍保存。 3、液體形式因子產(chǎn)品不需要復溶,具體濃度詳見產(chǎn)品標簽,按照實驗需要用含載體蛋白(如0.1% BSA,10%FBS,5%HSA 或 5% 海藻糖)的溶液進一步稀釋后分裝冷凍保存即可;


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