1fnd
From Proteopedia
| Line 1: | Line 1: | ||
[[Image:1fnd.gif|left|200px]] | [[Image:1fnd.gif|left|200px]] | ||
| - | + | <!-- | |
| - | + | The line below this paragraph, containing "STRUCTURE_1fnd", creates the "Structure Box" on the page. | |
| - | + | You may change the PDB parameter (which sets the PDB file loaded into the applet) | |
| - | + | or the SCENE parameter (which sets the initial scene displayed when the page is loaded), | |
| - | + | or leave the SCENE parameter empty for the default display. | |
| - | | | + | --> |
| - | | | + | {{STRUCTURE_1fnd| PDB=1fnd | SCENE= }} |
| - | + | ||
| - | + | ||
| - | }} | + | |
'''REFINED CRYSTAL STRUCTURE OF SPINACH FERREDOXIN REDUCTASE AT 1.7 ANGSTROMS RESOLUTION: OXIDIZED, REDUCED, AND 2'-PHOSPHO-5'-AMP BOUND STATES''' | '''REFINED CRYSTAL STRUCTURE OF SPINACH FERREDOXIN REDUCTASE AT 1.7 ANGSTROMS RESOLUTION: OXIDIZED, REDUCED, AND 2'-PHOSPHO-5'-AMP BOUND STATES''' | ||
| Line 19: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
| - | 1FND is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. This structure supersedes the now removed PDB entry | + | 1FND is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=2fnr 2fnr]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FND OCA]. |
==Reference== | ==Reference== | ||
Refined crystal structure of spinach ferredoxin reductase at 1.7 A resolution: oxidized, reduced and 2'-phospho-5'-AMP bound states., Bruns CM, Karplus PA, J Mol Biol. 1995 Mar 17;247(1):125-45. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/7897656 7897656] | Refined crystal structure of spinach ferredoxin reductase at 1.7 A resolution: oxidized, reduced and 2'-phospho-5'-AMP bound states., Bruns CM, Karplus PA, J Mol Biol. 1995 Mar 17;247(1):125-45. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/7897656 7897656] | ||
| - | [[Category: Ferredoxin--NADP(+) reductase]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Spinacia oleracea]] | [[Category: Spinacia oleracea]] | ||
[[Category: Bruns, C M.]] | [[Category: Bruns, C M.]] | ||
[[Category: Karplus, P A.]] | [[Category: Karplus, P A.]] | ||
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 16:32:05 2008'' | |
| - | + | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 13:32, 2 May 2008
REFINED CRYSTAL STRUCTURE OF SPINACH FERREDOXIN REDUCTASE AT 1.7 ANGSTROMS RESOLUTION: OXIDIZED, REDUCED, AND 2'-PHOSPHO-5'-AMP BOUND STATES
Overview
The crystal structure of spinach ferredoxin-NADP(+)-oxidoreductase (FNR), determined by multiple isomorphous replacement at 2.6 A resolution, has been refined at 1.7 A resolution to an R-factor of 17.9%. The structure of FNR bound to the competitive inhibitor 2'-phospho-5'-AMP (P-AMP) has also been refined at 1.7 A to an R-factor of 17.4% and dithionite-reduced/P-AMP-bound FNR has been refined at 2.0 A to an R-factor of 14.9%. The P-AMP-bound structure was used to construct a model for the binding of NADP+. Over 200 solvation sites were included in each structure, and many of the best defined solvation sites stabilize buried turns. A bulk solvent correction obviated the need for a low-resolution data cutoff. An acidic side-chain likely to be responsible for the low pH requirement for crystallization has been identified. Three large networks of the hydrophobic side-chains help define the FNR structure. One of these contains a large cavity far from the active site, which coincides with the lone site of sequence heterogeneity in FNR, and may provide a site for membrane attachment. The reduced structure shows that Ser96 moves toward atom N-5 of FAD and a water molecule moves toward atom N-1 of FAD, while the flavin moiety remains planar. Possible sources of a proton that must be picked up upon reduction are discussed.
About this Structure
1FND is a Single protein structure of sequence from Spinacia oleracea. This structure supersedes the now removed PDB entry 2fnr. Full crystallographic information is available from OCA.
Reference
Refined crystal structure of spinach ferredoxin reductase at 1.7 A resolution: oxidized, reduced and 2'-phospho-5'-AMP bound states., Bruns CM, Karplus PA, J Mol Biol. 1995 Mar 17;247(1):125-45. PMID:7897656 Page seeded by OCA on Fri May 2 16:32:05 2008
