1fps
From Proteopedia
(New page: 200px<br /><applet load="1fps" size="450" color="white" frame="true" align="right" spinBox="true" caption="1fps, resolution 2.6Å" /> '''CRYSTAL STRUCTURE OF ...) |
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| - | [[Image:1fps.jpg|left|200px]]<br /><applet load="1fps" size=" | + | [[Image:1fps.jpg|left|200px]]<br /><applet load="1fps" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="1fps, resolution 2.6Å" /> | caption="1fps, resolution 2.6Å" /> | ||
'''CRYSTAL STRUCTURE OF RECOMBINANT FARNESYL DIPHOSPHATE SYNTHASE AT 2.6 ANGSTROMS RESOLUTION'''<br /> | '''CRYSTAL STRUCTURE OF RECOMBINANT FARNESYL DIPHOSPHATE SYNTHASE AT 2.6 ANGSTROMS RESOLUTION'''<br /> | ||
==Overview== | ==Overview== | ||
| - | The synthesis of farnesyl diphosphate (FPP), a key intermediate in the | + | The synthesis of farnesyl diphosphate (FPP), a key intermediate in the isoprenoid biosynthetic pathway required for the synthesis of cholesterol and in the formation of prenylated proteins, is catalyzed by the enzyme farnesyl diphosphate synthase (FPS). The crystal structure of avian recombinant FPS, the first three-dimensional structure for any prenyltransferase, was determined to 2.6-A resolution. The enzyme exhibits a novel fold composed entirely of alpha-helices joined by connecting loops. The enzyme's most prominent structural feature is the arrangement of 10 core helices around a large central cavity. Two aspartate-rich sequences that are highly conserved among the isoprenyl diphosphate synthase family of prenyltransferases, and are essential for enzymatic activity, were found on opposite walls of this cavity, with the aspartate side chains approximately 12 A apart and facing each other. The location and metal ion binding properties of these sequences suggest that the conserved aspartate residues participate in substrate binding of catalysis. |
==About this Structure== | ==About this Structure== | ||
| - | 1FPS is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Active as [http://en.wikipedia.org/wiki/Geranyltranstransferase Geranyltranstransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.5.1.10 2.5.1.10] Full crystallographic information is available from [http:// | + | 1FPS is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Active as [http://en.wikipedia.org/wiki/Geranyltranstransferase Geranyltranstransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.5.1.10 2.5.1.10] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FPS OCA]. |
==Reference== | ==Reference== | ||
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[[Category: Geranyltranstransferase]] | [[Category: Geranyltranstransferase]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
| - | [[Category: Poulter, C | + | [[Category: Poulter, C D.]] |
| - | [[Category: Sacchettini, J | + | [[Category: Sacchettini, J C.]] |
| - | [[Category: Tarshis, L | + | [[Category: Tarshis, L C.]] |
[[Category: Yan, M.]] | [[Category: Yan, M.]] | ||
[[Category: prenyltransferase]] | [[Category: prenyltransferase]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 12:41:18 2008'' |
Revision as of 10:41, 21 February 2008
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CRYSTAL STRUCTURE OF RECOMBINANT FARNESYL DIPHOSPHATE SYNTHASE AT 2.6 ANGSTROMS RESOLUTION
Overview
The synthesis of farnesyl diphosphate (FPP), a key intermediate in the isoprenoid biosynthetic pathway required for the synthesis of cholesterol and in the formation of prenylated proteins, is catalyzed by the enzyme farnesyl diphosphate synthase (FPS). The crystal structure of avian recombinant FPS, the first three-dimensional structure for any prenyltransferase, was determined to 2.6-A resolution. The enzyme exhibits a novel fold composed entirely of alpha-helices joined by connecting loops. The enzyme's most prominent structural feature is the arrangement of 10 core helices around a large central cavity. Two aspartate-rich sequences that are highly conserved among the isoprenyl diphosphate synthase family of prenyltransferases, and are essential for enzymatic activity, were found on opposite walls of this cavity, with the aspartate side chains approximately 12 A apart and facing each other. The location and metal ion binding properties of these sequences suggest that the conserved aspartate residues participate in substrate binding of catalysis.
About this Structure
1FPS is a Single protein structure of sequence from Gallus gallus. Active as Geranyltranstransferase, with EC number 2.5.1.10 Full crystallographic information is available from OCA.
Reference
Crystal structure of recombinant farnesyl diphosphate synthase at 2.6-A resolution., Tarshis LC, Yan M, Poulter CD, Sacchettini JC, Biochemistry. 1994 Sep 13;33(36):10871-7. PMID:8086404
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