CoupTF2/NR2F2 (fragment)

Tumor growth depends on nutrients and oxygen supplied by the vasculature through angiogenesis. It was shown that the chicken ovalbumin upstream promoter-transcription factor II (COUP-TFII), a member of the nuclear receptor family, is a major angiogenesis regulator within the tumor microenvironment. COUP-TFs consist of two highly homologous subtypes, COUP-TFI (EAR-3, NR2F1) and COUP-TFII (ARP-1, NR2F2) . Conditional ablation of COUP-TFII in the tumor microenvironment severely compromised neoangiogenesis and lymphangiogenesis during pancreatic tumor progression and metastasis. It was shown that COUP-TFII plays a cell-autonomous role in endothelial cells to control blood vessel sprouting by regulating cell proliferation and migration. Mechanistic investigations revealed that COUP-TFII suppressed vascular endothelial growth factor receptor-2 (VEGFR-2/KDR) signaling by transcriptionally repressing the expression of VEGFR-1, thereby curtailing a central angiogenic driver of vascular growth. These results implicate COUP-TFII as a critical factor in tumor angiogenesis through regulation of VEGF/VEGFR-2 signaling, suggesting COUP-TFII as a candidate target for antiangiogenic therapy.

COUP-TF2, Apolipoprotein A-I regulatory protein 1, ARP-1, COUP transcription factor II, COUP-TF II, Nuclear receptor subfamily 2 group F member 2

7026

P24468

NP_066285.1.

NM_021005.3.

Human

Human

His-Tag

MAMVVSTWRD PQDEVPGSQG SQASQAPPVP GPPPGAPHTP QTPGQGGPAS TPAQTAAGGQ GGPGGPGSDK QQQQQHIECV VCGDKSSGKH YGQFTCEGCK SFFKRSVRRN LSYTCRANRN CPIDQHHRNQ CQYCRLKKCL KVGMRREAVQ RGRMPPTQPT HGQFALTNGD PLNCHSYLSG YISLLLRAEL EHHHHHH

197

Lyophilized

E. coli