Human geranylgeranyl diphosphate synthase - cDNA cloning and expression

被引:56
作者
Kuzuguchi, T [1 ]
Morita, Y [1 ]
Sagami, I [1 ]
Sagami, H [1 ]
Ogura, K [1 ]
机构
[1] Tohoku Univ, Inst Chem React Sci, Aoba Ku, Sendai, Miyagi 9808577, Japan
关键词
D O I
10.1074/jbc.274.9.5888
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 [生物化学与分子生物学]; 081704 [应用化学];
摘要
Geranylgeranyl diphosphate (GGPP) synthase (GGPPSase) catalyzes the synthesis of GGPP, which is an important molecule responsible for the C-20-prenylated protein biosynthesis and for the regulation of a nuclear hormone receptor (LXR.RXR). The human GGPPSase cDNA encodes a protein of 300 amino acids which shows 16%, sequence identity with the known human farnesyl diphosphate (FPP) synthase (FPPSase). The GGPPSase expressed in Escherichia coli catalyzes the GGPP formation (240 nmol/min/mg) from FPP and isopentenyl diphosphate. The human GGPPSase behaves as an oligomeric molecule with 280 kDa on a gel filtration column and cross-reacts with an antibody directed against bovine brain GGPPSase, which differs immunochemically from bovine brain FPPSase. Northern blot analysis indicates the presence of two forms of the mRNA.
引用
收藏
页码:5888 / 5894
页数:7
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