PCSK9 蛋白, Human (Biotinylated, V474I, G670E, HEK293, Avi)

PCSK9 protein, a crucial regulator of plasma cholesterol homeostasis, influences LDL receptor family members like LDLR and VLDLR. It facilitates their degradation within intracellular compartments, enhancing hepatic LDLR degradation through a non-proteolytic mechanism. PCSK9 also exhibits LDLR-independent inhibition of APOB degradation and regulates ENaC-mediated Na(+) absorption, influencing neuronal apoptosis. Notably, it modulates LRP8/APOER2 levels and associated anti-apoptotic pathways. PCSK9 Protein, Human (Biotinylated, V474I, G670E, HEK293, Avi) is the recombinant human-derived PCSK9 protein, expressed by HEK293 , with C-Avi labeled tag and V474I, G670E mutation. The total length of PCSK9 Protein, Human (Biotinylated, V474I, G670E, HEK293, Avi) is 662 a.a., with molecular weight of 19 & 65 kDa, respectively.

PCSK9 蛋白在血浆胆固醇稳态的复杂协调中发挥着关键调节作用。证明其对低密度脂蛋白受体家族成员的影响，包括低密度脂蛋白受体 (LDLR)、极低密度脂蛋白受体 (VLDLR)、载脂蛋白 E 受体 (LRP1/APOER) 和载脂蛋白受体 2 (LRP8/APOER2) ），PCSK9 促进它们在细胞内酸性区室中的降解。它采用非蛋白水解机制，通过网格蛋白 LDLRAP1/ARH 介导的途径增强肝脏 LDLR 降解，可能阻碍 LDLR 回收并将其引导至溶酶体降解。此外，PCSK9 通过自噬体/溶酶体途径表现出 LDLR 独立的 APOB 细胞内降解抑制作用，并在早期分泌途径中非乙酰化 BACE1 中间体的处理中发挥作用。值得注意的是，它通过增强 ENaC 蛋白酶体降解来调节上皮 Na(+) 通道 (ENaC) 介导的 Na(+) 吸收，并通过调节 LRP8/APOER2 水平和相关的抗凋亡信号通路影响神经元凋亡。

The enzyme activity of this recombinant protein is testing in progress, we cannot offer a guarantee yet.

Human

HEK293

C-Avi

Q8NBP7 (Q31-Q692, V474I, G670E)

255738  [NCBI]

QEDEDGDYEELVLALRSEEDGLAEAPEHGTTATFHRCAKDPWRLPGTYVVVLKEETHLSQSERTARRLQAQAARRGYLTKILHVFHGLLPGFLVKMSGDLLELALKLPHVDYIEEDSSVFAQSIPWNLERITPPRYRADEYQPPDGGSLVEVYLLDTSIQSDHREIEGRVMVTDFENVPEEDGTRFHRQASKCDSHGTHLAGVVSGRDAGVAKGASMRSLRVLNCQGKGTVSGTLIGLEFIRKSQLVQPVGPLVVLLPLAGGYSRVLNAACQRLARAGVVLVTAAGNFRDDACLYSPASAPEVITVGATNAQDQPVTLGTLGTNFGRCVDLFAPGEDIIGASSDCSTCFVSQSGTSQAAAHVAGIAAMMLSAEPELTLAELRQRLIHFSAKDVINEAWFPEDQRVLTPNLVAALPPSTHGAGWQLFCRTVWSAHSGPTRMATAIARCAPDEELLSCSSFSRSGKRRGERMEAQGGKLVCRAHNAFGGEGVYAIARCCLLPQANCSVHTAPPAEASMGTRVHCHQQGHVLTGCSSHWEVEDLGTHKPPVLRPRGQPNQCVGHREASIHASCCHAPGLECKVKEHGIPAPQEQVTVACEEGWTLTGCSALPGTSHVLGAYAVDNTCVVRSRDVSTTGSTSEEAVTAVAICCRSRHLAQASQELQ

19&65 kDa

Greater than 95% as determined by reducing SDS-PAGE.

溶液.

Supplied as a 0.2 μm filtered solution of 50 mM HEPES, 150 mM NaCl, 20%Glycerol, pH 7.4.

<1 EU/μg, determined by LAL method.

Stored at -80°C for 1 year. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.

Shipping with dry ice.