1qg0

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[[Image:1qg0.gif|left|200px]]<br /><applet load="1qg0" size="350" color="white" frame="true" align="right" spinBox="true"
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[[Image:1qg0.gif|left|200px]]
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caption="1qg0, resolution 2.5&Aring;" />
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'''WILD-TYPE PEA FNR'''<br />
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{{Structure
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|PDB= 1qg0 |SIZE=350|CAPTION= <scene name='initialview01'>1qg0</scene>, resolution 2.5&Aring;
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|SITE=
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|LIGAND= <scene name='pdbligand=FAD:FLAVIN-ADENINE DINUCLEOTIDE'>FAD</scene>
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|ACTIVITY= [http://en.wikipedia.org/wiki/Ferredoxin--NADP(+)_reductase Ferredoxin--NADP(+) reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.18.1.2 1.18.1.2]
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|GENE=
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}}
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'''WILD-TYPE PEA FNR'''
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==Overview==
==Overview==
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==About this Structure==
==About this Structure==
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1QG0 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum] with <scene name='pdbligand=FAD:'>FAD</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/Ferredoxin--NADP(+)_reductase Ferredoxin--NADP(+) reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.18.1.2 1.18.1.2] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QG0 OCA].
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1QG0 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QG0 OCA].
==Reference==
==Reference==
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A productive NADP+ binding mode of ferredoxin-NADP + reductase revealed by protein engineering and crystallographic studies., Deng Z, Aliverti A, Zanetti G, Arakaki AK, Ottado J, Orellano EG, Calcaterra NB, Ceccarelli EA, Carrillo N, Karplus PA, Nat Struct Biol. 1999 Sep;6(9):847-53. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10467097 10467097]
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A productive NADP+ binding mode of ferredoxin-NADP + reductase revealed by protein engineering and crystallographic studies., Deng Z, Aliverti A, Zanetti G, Arakaki AK, Ottado J, Orellano EG, Calcaterra NB, Ceccarelli EA, Carrillo N, Karplus PA, Nat Struct Biol. 1999 Sep;6(9):847-53. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10467097 10467097]
[[Category: Ferredoxin--NADP(+) reductase]]
[[Category: Ferredoxin--NADP(+) reductase]]
[[Category: Pisum sativum]]
[[Category: Pisum sativum]]
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[[Category: photosynthesis]]
[[Category: photosynthesis]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 14:39:05 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 13:36:57 2008''

Revision as of 11:36, 20 March 2008

Image:1qg0.gif


PDB ID 1qg0

Drag the structure with the mouse to rotate
, resolution 2.5Å
Ligands:
Activity: Ferredoxin--NADP(+) reductase, with EC number 1.18.1.2
Coordinates: save as pdb, mmCIF, xml



WILD-TYPE PEA FNR


Overview

The flavoenzyme ferredoxin-NADP+ reductase (FNR) catalyzes the production of NADPH during photosynthesis. Whereas the structures of FNRs from spinach leaf and a cyanobacterium as well as many of their homologs have been solved, none of these studies has yielded a productive geometry of the flavin-nicotinamide interaction. Here, we show that this failure occurs because nicotinamide binding to wild type FNR involves the energetically unfavorable displacement of the C-terminal Tyr side chain. We used mutants of this residue (Tyr 308) of pea FNR to obtain the structures of productive NADP+ and NADPH complexes. These structures reveal a unique NADP+ binding mode in which the nicotinamide ring is not parallel to the flavin isoalloxazine ring, but lies against it at an angle of approximately 30 degrees, with the C4 atom 3 A from the flavin N5 atom.

About this Structure

1QG0 is a Single protein structure of sequence from Pisum sativum. Full crystallographic information is available from OCA.

Reference

A productive NADP+ binding mode of ferredoxin-NADP + reductase revealed by protein engineering and crystallographic studies., Deng Z, Aliverti A, Zanetti G, Arakaki AK, Ottado J, Orellano EG, Calcaterra NB, Ceccarelli EA, Carrillo N, Karplus PA, Nat Struct Biol. 1999 Sep;6(9):847-53. PMID:10467097

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