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General description
Human sDLL4 comprises the extracellular signaling domain of DLL, a member of a structurally-related family of single-pass type I trans-membrane proteins that serve as ligands for Notch receptors. DLL4 functions to specifically activate the Notch-1 and Notch-4 receptors. The Notch signaling pathway regulates endothelial-cell differentiation, proliferation and apoptosis, and is essential for the development, maintenance and remodeling of the vascular system. Targeted deletion of the DLL4 gene in mice resulted in severe vascular defects and death before birth. Up-regulation of DLL4 expression has been implicated in the vascular development of certain tumors. Recombinant human sDLL4 is a 54.0 kDa glycoprotein containing 498 amino-acid residues. DLL4 is a membrane-bound notch ligand that belongs to the d protein family. Apart from the membrane-bound region, it consists of extracellular growth factor (EGF)-like domains and a receptor-binding DSL domain. DLL4 is selectively expressed in the endothelial cells and may act as a regulator of blood vessel biology.
Biochem/physiol Actions
Human sDLL4 comprises the extracellular signaling domain of DLL, a member of a structurally-related family of single-pass type I trans-membrane proteins that serve as ligands for Notch receptors. Recombinant human sDLL4 is a 54.0 kDa glycoprotein containing 498 amino-acid residues.
Physical form
Lyophilized from 1x PBS, pH 7.5.
Preparation Note
Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.
Other Notes
SGVFQLQLQE FINERGVLAS GRPCEPGCRT FFRVCLKHFQ AVVSPGPCTF GTVSTPVLGT NSFAVRDDSS GGGRNPLQLP FNFTWPGTFS LIIEAWHAPG DDLRPEALPP DALISKIAIQ GSLAVGQNWL LDEQTSTLTR LRYSYRVICS DNYYGDNCSR LCKKRNDHFG HYVCQPDGNL SCLPGWTGEY CQQPICLSGC HEQNGYCSKP AECLCRPGWQ GRLCNECIPH NGCRHGTCST PWQCTCDEGW GGLFCDQDLN YCTHHSPCKN GATCSNSGQR SYTCTCRPGY TGVDCELELS ECDSNPCRNG GSCKDQEDGY HCLCPPGYYG LHCEHSTLSC ADSPCFNGGS CRERNQGANY ACECPPNFTG SNCEKKVDRC TSNPCANGGQ CLNRGPSRMC RCRPGFTGTY CELHVSDCAR NPCAHGGTCH DLENGLMCTC PAGFSGRRCE VRTSIDACAS SPCFNRATCY TDLSTDTFVC NCPYGFVGSR CEFPVGLP
| biological source | human |
| recombinant | expressed in HEK 293 cells |
| assay | ≥95% (HPLC),≥95% (SDS-PAGE) |
| form | lyophilized |
| potency | >1.5 μg/mL ( ) |
| mol wt | 54.0 kDa |
| packaging | pkg of 25 μg |
| technique(s) | cell culture | mammalian: suitable |
| impurities | <0.1 EU/μg endotoxin, tested |
| color | white |
| UniProt accession no. | Q9NR61 |
| shipped in | wet ice |
| storage temp. | −20°C |
| Gene Information | human ... DLL4(54567) |
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¥ 629.40
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¥ 580.62
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¥ 1669.50
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¥ 2532.00
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¥ 44224.19
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¥ 145427.01
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