Human Geranylgeranyl Diphosphate Synthase

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 acid...

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Bibliographic Details
Published in:The Journal of biological chemistry 1999-02, Vol.274 (9), p.5888-5894
Main Authors: Kuzuguchi, Tsuyoshi, Morita, Yuiko, Sagami, Ikuko, Sagami, Hiroshi, Ogura, Kyozo
Format: Article
Language:English
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Summary: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.
ISSN:0021-9258
1083-351X
DOI:10.1074/jbc.274.9.5888