PCSK9 Protein, 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 protein emerges as a pivotal regulator in the intricate orchestration of plasma cholesterol homeostasis. Demonstrating its influence on low-density lipid receptor family members, including the low-density lipoprotein receptor (LDLR), very low-density lipoprotein receptor (VLDLR), apolipoprotein E receptor (LRP1/APOER), and apolipoprotein receptor 2 (LRP8/APOER2), PCSK9 facilitates their degradation within intracellular acidic compartments. Employing a non-proteolytic mechanism, it enhances the hepatic LDLR degradation through a clathrin LDLRAP1/ARH-mediated pathway, possibly impeding LDLR recycling and directing it toward lysosomal degradation. Moreover, PCSK9 exhibits LDLR-independent inhibition of APOB intracellular degradation via the autophagosome/lysosome pathway and plays a role in the disposal of non-acetylated BACE1 intermediates in the early secretory pathway. Notably, it regulates epithelial Na(+) channel (ENaC)-mediated Na(+) absorption by augmenting ENaC proteasomal degradation, and influences neuronal apoptosis through the modulation of LRP8/APOER2 levels and associated anti-apoptotic signaling pathways.

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.

Solution.

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.