1fer: Difference between revisions
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'''STRUCTURE AT PH 6.5 OF FERREDOXIN I FROM AZOTOBACTER VINELANDII AT 2.3 ANGSTROMS RESOLUTION''' | {{Structure | ||
|PDB= 1fer |SIZE=350|CAPTION= <scene name='initialview01'>1fer</scene>, resolution 2.3Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=F3S:FE3-S4+CLUSTER'>F3S</scene> and <scene name='pdbligand=SF4:IRON/SULFUR CLUSTER'>SF4</scene> | |||
|ACTIVITY= | |||
|GENE= | |||
}} | |||
'''STRUCTURE AT PH 6.5 OF FERREDOXIN I FROM AZOTOBACTER VINELANDII AT 2.3 ANGSTROMS RESOLUTION''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1FER is a [ | 1FER is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Azotobacter_vinelandii Azotobacter vinelandii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FER OCA]. | ||
==Reference== | ==Reference== | ||
Structure at pH 6.5 of ferredoxin I from Azotobacter vinelandii at 2.3 A resolution., Merritt EA, Stout GH, Turley S, Sieker LC, Jehsen LH, Orme-Johnson WH, Acta Crystallogr D Biol Crystallogr. 1993 Mar 1;49(Pt 2):272-81. PMID:[http:// | Structure at pH 6.5 of ferredoxin I from Azotobacter vinelandii at 2.3 A resolution., Merritt EA, Stout GH, Turley S, Sieker LC, Jehsen LH, Orme-Johnson WH, Acta Crystallogr D Biol Crystallogr. 1993 Mar 1;49(Pt 2):272-81. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15299532 15299532] | ||
[[Category: Azotobacter vinelandii]] | [[Category: Azotobacter vinelandii]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: electron transfer(iron-sulfur protein)]] | [[Category: electron transfer(iron-sulfur protein)]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:08:06 2008'' | ||
Revision as of 09:08, 20 March 2008
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| 1fer, resolution 2.3Å | |||||||||||||
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| Ligands: | F3S and SF4 | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
STRUCTURE AT PH 6.5 OF FERREDOXIN I FROM AZOTOBACTER VINELANDII AT 2.3 ANGSTROMS RESOLUTION
Overview
Ferredoxin I from Azotobacter vinelandii (AvFdI) is an iron-sulfur protein composed of 106 amino acids, seven Fe atoms and eight inorganic S* atoms. A crystallographic redetermination of its structure showed the originally reported structure to be incorrect. We report here the crystal structure of AvFdI at pH 6.5. Extensive refinement has led to a final R value of 0.170 for all 6986 non-extinct reflections in the range 10-2.3 A using a solvent model which includes 98 discrete solvent atoms with occupancies between 0.3 and 1.0 and an average B value of 22.5 A(2). The first half of the peptide chain closely resembles that of the 55-residue ferredoxin from Peptococcus aerogenes (PaFd), while the remainder consists of three turns of helix and a series of loops which form a cap over part of the molecular core. Despite the similarities in structure and surroundings, the corresponding 4Fe4S* clusters in PaFd and AvFdI have strikingly different redox potentials; a possible explanation has been sought in the differing hydration models for the two molecules.
About this Structure
1FER is a Single protein structure of sequence from Azotobacter vinelandii. Full crystallographic information is available from OCA.
Reference
Structure at pH 6.5 of ferredoxin I from Azotobacter vinelandii at 2.3 A resolution., Merritt EA, Stout GH, Turley S, Sieker LC, Jehsen LH, Orme-Johnson WH, Acta Crystallogr D Biol Crystallogr. 1993 Mar 1;49(Pt 2):272-81. PMID:15299532
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