Human Flt-1 / VEGFR-1 soluble (D4) (InCs) recombinant Protein
Please log in to see the special conditions of your institution.
soluble vascular endothelial growth factor receptor-1, soluble FLT1, soluble VEGFR-1.
Description of Human Flt-1 / VEGFR-1 soluble (D4) (InCs)
Recombinant Human soluble Vascular Endothelial Growth Factor Receptor-1 domain D1-4 (sVEGFR-1(D4)) is produced as a non-chimeric protein in a monomeric form. The soluble receptor protein contains only the first 4 extracellular domains, which contain all the information necessary for binding of VEGF. The receptor monomers have a mass of approximately 55 kDa containing 457 amino acid residues. Endothelial cells express three different vascular endothelial growth factor (VEGF) receptors, belonging to the family of receptor tyrosine kinases (RTKs). They are named VEGFR-1 (Flt-1), VEGFR-2 (KDR/Flk-1), VEGFR-3 (Flt-4). Their expression is almost exclusively restricted to endothelial cells, but VEGFR-1 can also be found on monocytes, dendritic cells and on trophoblast cells. The flt-1 gene was first described in 1990. The receptor contains seven immunoglobulin-like extracellular domains, a single transmembrane region and an intracellular split tyrosine kinase domain. Compared to VEGFR-2 the Flt-1 receptor has a higher affinity for VEGF but a weaker signaling activity. VEGFR-1 thus leads not to proliferation of endothelial cells, but mediates signals for differentiation. Interestingly a naturally occuring soluble variant of VEGFR-1 (sVEGFR-1) was found in HUVEC supernatants in 1996, which is generated by alternative splicing of the flt-1 mRNA. The biological functions of sVEGFR-1 still are not clear, but it seems to be an endogenous regulator of angiogenesis, binding VEGF with the same affinity as the full-length receptor.
The activity of sVEGFR-1(D4) was determined by its ability to inhibit the VEGF-A-induced proliferation of HUVECs.
The lyophilized sVEGFR-1(D4) is soluble in water and most aqueous buffers and should be reconstituted in PBS to a concentration not lower than 100µg/ml.
Amino Acid Sequence
SKLKDPELSL KGTQHIMQAG QTLHLQCRGE AAHKWSLPEM VSKESERLSI TKSACGRNGK QFCSTLTLNT AQANHTGFYS CKYLAVPTSK KKETESAIYI FISDTGRPFV EMYSEIPEII HMTEGRELVI PCRVTSPNIT VTLKKFPLDT LIPDGKRIIW DSRKGFIISN ATYKEIGLLT CEATVNGHLY KTNYLTHRQT NTIIDVQIST PRPVKLLRGH TLVLNCTATT PLNTRVQMTW SYPDEKNKRA SVRRRIDQSN SHANIFYSVL TIDKMQNKDK GLYTCRVRSG PSFKSVNTSV HIYDKAFITV KHRKQQVLET VAGKRSYRLS MKVKAFPSPE VVWLKDGLPA TEKSARYLTR GYSLIIKDVT EEDAGNYTIL LSIKQSNVFK NLTATLIVNV KPQIYEKAVS SFPDPALYPL GSRQILTCTA YGIPQPTIKW FWHPCNHNHS EARCDFC
Shipped at room temperature
To buy Human Flt-1 / VEGFR-1 soluble (D4) (InCs) please click on the Shopping List Symbol right from the indicated price. This will add the product to your Shopping List. You can then click on the button »Shopping List & Order Form« or the Shopping List Symbol in the top navigation to ask for a quote. We will send you your quote as soon as possible. Our offer will include institutional discounts where applicable.
All prices are net prices (excluding VAT). Final prices in our quote will contain VAT plus shipping costs if applicable. For further information please go to our Shipping page.
Errors, changes and availability excepted.
Paying by bank transfer
We ship with UPS
Free shipping for orders above 500 € within Germany