Biotinylated Human PSMA / FOLH1 Protein, His,Avitag?, premium grade
分子別名(Synonym)
FOLH1,PSMA,GIG27,FOLH,NAALAD1,PSM,NAALADase I,GCPII,FGCP
表達區(qū)間及表達系統(tǒng)(Source)
Biotinylated Human PSMA, His,Avitag, premium grade (PSA-H82Qb) is expressed from human 293 cells (HEK293). It contains AA Lys 44 - Ala 750 (Accession # Q04609-1).
Predicted N-terminus: His
該產(chǎn)品在涵蓋無菌檢測與內(nèi)毒素檢測等全套分析的嚴格質(zhì)控體系下生產(chǎn)。其性能經(jīng)過嚴謹驗證,確保適用于細胞培養(yǎng)及臨床前階段各類應(yīng)用場景。當研究進入后期臨床階段時,我們同步提供定制化GMP蛋白服務(wù):根據(jù)您的具體需求,我們將攜手開發(fā)符合細胞療法生產(chǎn)規(guī)范的GMP級蛋白制品,同時確保其滿足細胞制造過程中原輔材料的使用標準。
蛋白結(jié)構(gòu)(Molecular Characterization)

This protein carries a polyhistidine tag at the N-terminus, followed by an Avi tag (Avitag?).
The protein has a calculated MW of 83.1 kDa. The protein migrates as 95-115 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
標記(Labeling)
Biotinylation of this product is performed using Avitag? technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
蛋白標記度(Protein Ratio)
Passed as determined by the HABA assay / binding ELISA.
內(nèi)毒素(Endotoxin)
Less than 0.01 EU per μg by the LAL method / rFC method.
無菌(Sterility)
Negative
支原體(Mycoplasma)
Negative.
純度(Purity)
>95% as determined by SDS-PAGE.
制劑(Formulation)
Supplied as 0.2 μm filtered solution in 25 mM MES, 500 mM NaCl, pH6.5 with trehalose as protectant.
Contact us for customized product form or formulation.
運輸(Shipping)
This product is supplied and shipped with dry ice, please inquire the shipping cost.
存儲(Storage)
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
The product MUST be stored at -70°C or lower upon receipt;
-70°C for 6 months under sterile conditions.

背景介紹
前列腺特異性膜抗原(PSMA),亦稱葉酸水解酶1(FOLH1)、谷氨酸羧肽酶2(GCP2)或N-乙酰化α-連接酸性二肽酶I(NAALAD1),隸屬肽酶M28家族M28B亞家族。該蛋白在pH>6.5環(huán)境中穩(wěn)定存在,是一種II型跨膜鋅金屬肽酶,在神經(jīng)系統(tǒng)、前列腺、腎臟及小腸中呈現(xiàn)高表達。其以同源二聚體形式存在,每個亞基結(jié)合2個鋅離子,為NAALAD酶活性所必需。PSMA的催化機制涉及釋放未取代的C端谷氨酰殘基,典型作用底物為乙酰天冬氨酸-谷氨酸(Ac-Asp-Glu)或葉酰聚-γ-谷氨酸。該酶兼具葉酸水解酶與N-乙酰化α-連接酸性二肽酶(NAALAD酶)活性,并對三聚α-谷氨酸肽具有底物偏好性。GCP-2/PSMA參與前列腺腫瘤進展過程,同時表現(xiàn)二肽基肽酶IV型活性,在體外實驗中可特異性切割甘氨酸-脯氨酸-AMC(Gly-Pro-AMC)。
關(guān)鍵字: PSMA;PSMA蛋白;PSMA重組蛋白;ACRO;百普賽斯;
百普賽斯集團ACROBiosystems Group(股票代碼:301080)是成立于2010年的跨國生物科技公司,是為全球生物醫(yī)藥、健康產(chǎn)業(yè)領(lǐng)域提供關(guān)鍵生物試劑產(chǎn)品及解決方案的行業(yè)平臺型基石企業(yè)。2021年在創(chuàng)業(yè)板上市。百普賽斯集團業(yè)務(wù)遍布全球,橫跨亞洲、北美洲、歐洲,在中國、美國、瑞士等12個城市設(shè)有辦公室、研發(fā)中心及生產(chǎn)基地。目前累計服務(wù)客戶超6000家,與全球Top 20醫(yī)藥企業(yè)均建立了長期、穩(wěn)定的合作伙伴關(guān)系。集團旗下?lián)碛衅放艫CROBiosystems百普賽斯、bioSeedin柏思薈、Condense Capital墾拓資本和ACRODiagnostics百斯醫(yī)學(xué)等。