1hm5: Difference between revisions
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[[Image:1hm5.gif|left|200px]] | [[Image:1hm5.gif|left|200px]] | ||
'''CRYSTAL STRUCTURE ANALYSIS OF THE RABBIT D-GLUCOSE 6-PHOSPHATE ISOMERASE (NO LIGAND BOUND)''' | {{Structure | ||
|PDB= 1hm5 |SIZE=350|CAPTION= <scene name='initialview01'>1hm5</scene>, resolution 1.8Å | |||
|SITE= | |||
|LIGAND= | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Glucose-6-phosphate_isomerase Glucose-6-phosphate isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.3.1.9 5.3.1.9] | |||
|GENE= | |||
}} | |||
'''CRYSTAL STRUCTURE ANALYSIS OF THE RABBIT D-GLUCOSE 6-PHOSPHATE ISOMERASE (NO LIGAND BOUND)''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1HM5 is a [ | 1HM5 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HM5 OCA]. | ||
==Reference== | ==Reference== | ||
Conformational changes in phosphoglucose isomerase induced by ligand binding., Arsenieva D, Jeffery CJ, J Mol Biol. 2002 Oct 11;323(1):77-84. PMID:[http:// | Conformational changes in phosphoglucose isomerase induced by ligand binding., Arsenieva D, Jeffery CJ, J Mol Biol. 2002 Oct 11;323(1):77-84. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12368100 12368100] | ||
[[Category: Glucose-6-phosphate isomerase]] | [[Category: Glucose-6-phosphate isomerase]] | ||
[[Category: Oryctolagus cuniculus]] | [[Category: Oryctolagus cuniculus]] | ||
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[[Category: dimer]] | [[Category: dimer]] | ||
''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 11:38:51 2008'' | ||
Revision as of 12:38, 20 March 2008
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| , resolution 1.8Å | |||||||
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| Activity: | Glucose-6-phosphate isomerase, with EC number 5.3.1.9 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE ANALYSIS OF THE RABBIT D-GLUCOSE 6-PHOSPHATE ISOMERASE (NO LIGAND BOUND)
OverviewOverview
Phosphoglucose isomerase (PGI; EC 5.3.1.9) is the second enzyme in glycolysis, where it catalyzes the isomerization of D-glucose-6-phosphate to D-fructose-6-phosphate. It is the same protein as autocrine motility factor, differentiation and maturation mediator, and neuroleukin. Here, we report a new X-ray crystal structure of rabbit PGI (rPGI) without ligands bound in its active site. The structure was solved at 1.8A resolution by isomorphous phasing with a previously solved X-ray crystal structure of the rPGI dimer containing 6-phosphogluconate in its active site. Comparison of the new structure to previously reported structures enables identification of conformational changes that occur during binding of substrate or inhibitor molecules. Ligand binding causes an induced fit of regions containing amino acid residues 209-215, 245-259 and 385-389. This conformational change differs from the change previously reported to occur between the ring-opening and isomerization steps, in which the helix containing residues 513-521 moves toward the bound substrate. Differences between the liganded and unliganded structures are limited to the region within and close to the active-site pocket.
About this StructureAbout this Structure
1HM5 is a Single protein structure of sequence from Oryctolagus cuniculus. Full crystallographic information is available from OCA.
ReferenceReference
Conformational changes in phosphoglucose isomerase induced by ligand binding., Arsenieva D, Jeffery CJ, J Mol Biol. 2002 Oct 11;323(1):77-84. PMID:12368100
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