SRP3026
sDLL-4 human
recombinant, expressed in HEK 293 cells, ≥95% (SDS-PAGE), ≥95% (HPLC), suitable for cell culture
Synonym(s):
Delta-like protein 4, Drosophila Delta homolog 4
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About This Item
UNSPSC Code:
12352200
NACRES:
NA.32
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.
shipped in
wet ice
storage temp.
−20°C
Gene Information
human ... DLL4(54567)
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
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Information
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Molecular cloning of delta-4, a new mouse and human Notch ligand
T Yoneya
Biochemistry, 129 (2001)
G Thurston et al.
British journal of cancer, 99(8), 1204-1209 (2008-10-02)
Tumour angiogenesis has become an important target for antitumour therapy, with most current therapies aimed at blocking the VEGF pathway. However, not all tumours are responsive to VEGF blockers, and some tumours that are responsive initially may become resistant during
Dll4, a novel Notch ligand expressed in arterial endothelium
J R Shutter
Genes & Development, 14 (2000)
Haploinsufficiency of delta-like 4 ligand results in embryonic lethality due to major defects in arterial and vascular development
Nicholas W
Proceedings of the National Academy of Sciences of the USA (2004)
Minhong Yan et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 13(24), 7243-7246 (2007-12-21)
Intense research efforts have been focused toward the identification of regulators of angiogenesis and the development of antiangiogenesis-based cancer therapies. The approval of anti-vascular endothelial growth factor (VEGF) monoclonal antibody (bevacizumab) for use in colorectal and lung cancer provides clinical
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