1fsl: Difference between revisions

Revision as of 16:43, 2 May 2008

FERRIC SOYBEAN LEGHEMOGLOBIN COMPLEXED WITH NICOTINATE

OverviewOverview

Soybean leghemoglobin a is a small (16 kDa) protein facilitating the transport of O(2) to respiring N(2)-fixing bacteria at low free-O(2) tension. The crystal structure of soybean ferric leghemoglobin a nicotinate has been refined at 2.3 A resolution. The final R factor is 15.8% for 6877 reflections between 6.0 and 2.3 A. The structure of soybean leghemoglobin a (143 residues) is closely similar to that of lupin leghemoglobin II (153 residues), the proteins having 82 identical residues when the sequences are aligned. The new structure provides support for the conclusion that the unique properties of leghemoglobin arise principally from a heme pocket considerably larger and more flexible than that of myoglobin, a strongly ruffled heme group, and a proximal histidine orientation more favourable to ligand binding.

About this StructureAbout this Structure

1FSL is a Single protein structure of sequence from Glycine max. Full crystallographic information is available from OCA.

ReferenceReference

Structure of ferric soybean leghemoglobin a nicotinate at 2.3 A resolution., Ellis PJ, Appleby CA, Guss JM, Hunter WN, Ollis DL, Freeman HC, Acta Crystallogr D Biol Crystallogr. 1997 May 1;53(Pt 3):302-10. PMID:15299933 Page seeded by OCA on Fri May 2 16:43:07 2008

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA

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 [[Image:1fsl.jpg|left|200px]]
- {{Structure
+<!--
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+The line below this paragraph, containing "STRUCTURE_1fsl", creates the "Structure Box" on the page.
-|SITE=
+You may change the PDB parameter (which sets the PDB file loaded into the applet)
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-|RELATEDENTRY=
-|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1fsl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fsl OCA], [http://www.ebi.ac.uk/pdbsum/1fsl PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1fsl RCSB]</span>
-}}
 '''FERRIC SOYBEAN LEGHEMOGLOBIN COMPLEXED WITH NICOTINATE'''
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 [[Category: Freeman, H C.]]
 [[Category: Guss, J M.]]
-[[Category: heme]]
+[[Category: Heme]]
-[[Category: multigene family]]
+[[Category: Multigene family]]
-[[Category: nitrogen fixation]]
+[[Category: Nitrogen fixation]]
-[[Category: oxygen transport]]
+[[Category: Oxygen transport]]
-[[Category: respiratory protein]]
+[[Category: Respiratory protein]]
+''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May  2 16:43:07 2008''
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:29:31 2008''