Mouse Cathepsin L / CTSL1 Protein, His Tag (MALS verified)
分子別名(Synonym)
CTSL1,MEP,CATL,CTSL
表達區(qū)間及表達系統(tǒng)(Source)
Mouse Cathepsin L Protein, His Tag (CAL-M52H3) is expressed from human 293 cells (HEK293). It contains AA Thr 18 - Asn 334 (Accession # P06797-1).
Predicted N-terminus: Thr 18
蛋白結構(Molecular Characterization)

This protein carries a polyhistidine tag at the C-terminus. This protein contains an Activation peptide, and will be partially processed into Pro form with calculated MW of 35.8 kDa and proteolytic cleavage generate the single-chain activate form with calculated MW of 24.1 kDa and cleavaged activation peptide with calculated MW of 5 kDa under reducing (R) condition. The protein migrates as 40 kDa, 30 kDa and 10 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
內毒素(Endotoxin)
Less than 1.0 EU per μg by the LAL method.
純度(Purity)
>90% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
制劑(Formulation)
Supplied as 0.2 μm filtered solution in 25 mM Tris, 150 mM NaCl, pH7.0 with glycerol 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)
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.

背景(Background)
組織蛋白酶L(CTSL1)也被稱為主要排泄蛋白(MEP),是肽酶C1家族的成員,是由二硫鍵連接的重鏈和輕鏈組成的二聚體。CTSL1是一種溶酶體半胱氨酸蛋白酶,在細胞內蛋白質分解代謝中起著重要作用。其底物包括膠原蛋白和彈性蛋白,以及α-1蛋白酶抑制劑,這是中性粒細胞彈性蛋白酶活性的主要控制因素。MEP與多種病理過程有關,包括肌病和心肌缺血中的肌原纖維壞死,以及對蛋白尿的腎小管反應。CTSL1對溶酶體中蛋白質的整體降解很重要。MEP的特異性接近木瓜蛋白酶。與組織蛋白酶B相比,組織蛋白酶L對蛋白質底物表現出更高的活性,但對Z-Arg-Arg-NHMec幾乎沒有活性,也沒有肽基二肽酶活性。在pH 4.5至6.5的弱酸性條件下,人組織蛋白酶L活性最大。酶的穩(wěn)定性在較高的pH值下降低。
關鍵字: Cathepsin L;CTSL1蛋白;CTSL1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、健康產業(yè)領域提供關鍵生物試劑產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個城市設有辦公室、研發(fā)中心及生產基地。目前累計服務客戶超6000家,與全球Top 20醫(yī)藥企業(yè)均建立了長期、穩(wěn)定的合作伙伴關系。集團旗下擁有品牌ACROBiosystems百普賽斯、bioSeedin柏思薈、Condense Capital墾拓資本和ACRODiagnostics百斯醫(yī)學等。