1ghk: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
[[Image:1ghk.gif|left|200px]] | [[Image:1ghk.gif|left|200px]] | ||
'''SOLUTION STRUCTURE OF THE LIPOYL DOMAIN OF THE 2-OXOGLUTARATE DEHYDROGENASE COMPLEX FROM AZOTOBACTER VINELAND II, NMR, 25 STRUCTURES''' | {{Structure | ||
|PDB= 1ghk |SIZE=350|CAPTION= <scene name='initialview01'>1ghk</scene> | |||
|SITE= | |||
|LIGAND= | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Dihydrolipoyllysine-residue_succinyltransferase Dihydrolipoyllysine-residue succinyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.61 2.3.1.61] | |||
|GENE= | |||
}} | |||
'''SOLUTION STRUCTURE OF THE LIPOYL DOMAIN OF THE 2-OXOGLUTARATE DEHYDROGENASE COMPLEX FROM AZOTOBACTER VINELAND II, NMR, 25 STRUCTURES''' | |||
==Overview== | ==Overview== | ||
| Line 7: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
1GHK is a [ | 1GHK 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=1GHK OCA]. | ||
==Reference== | ==Reference== | ||
Solution structure of the lipoyl domain of the 2-oxoglutarate dehydrogenase complex from Azotobacter vinelandii., Berg A, Vervoort J, de Kok A, J Mol Biol. 1996 Aug 23;261(3):432-42. PMID:[http:// | Solution structure of the lipoyl domain of the 2-oxoglutarate dehydrogenase complex from Azotobacter vinelandii., Berg A, Vervoort J, de Kok A, J Mol Biol. 1996 Aug 23;261(3):432-42. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8780784 8780784] | ||
[[Category: Azotobacter vinelandii]] | [[Category: Azotobacter vinelandii]] | ||
[[Category: Dihydrolipoyllysine-residue succinyltransferase]] | [[Category: Dihydrolipoyllysine-residue succinyltransferase]] | ||
| Line 22: | Line 31: | ||
[[Category: transferase]] | [[Category: transferase]] | ||
''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 11:23:10 2008'' | ||
Revision as of 09:23, 20 March 2008
| |||||||||||||
| 1ghk | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Activity: | Dihydrolipoyllysine-residue succinyltransferase, with EC number 2.3.1.61 | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
SOLUTION STRUCTURE OF THE LIPOYL DOMAIN OF THE 2-OXOGLUTARATE DEHYDROGENASE COMPLEX FROM AZOTOBACTER VINELAND II, NMR, 25 STRUCTURES
Overview
The three-dimensional solution structure of the lipoyl domain of the 2-oxoglutarate dehydrogenase complex from Azotobacter vinelandii has been determined from nuclear magnetic resonance data by using distance geometry and dynamical simulated annealing refinement. The structure determination is based on a total of 580 experimentally derived distance constraints and 65 dihedral angle constraints. The solution structure is represented by an ensemble of 25 structures with an average root-mean-square deviation between the individual structures of the ensemble and the mean coordinates of 0.71 A for backbone atoms and 1.08 A for all heavy atoms. The overall fold of the lipoyl domain is that of a beta-barrel-sandwich hybrid. It consists of two almost parallel four-stranded anti-parallel beta-sheets formed around a well-defined hydrophobic core, with a central position of the single tryptophan 21. The lipoylation site, lysine 42, is found in a beta-turn at the far end of one of the sheets, and is close in space to a solvent-exposed loop comprising residues 7 to 15. The lipoyl domain displays a remarkable internal symmetry that projects one beta-sheet onto the other beta-sheet after rotation of approximately 180 degrees about a 2-fold rotational symmetry axis. There is close structural similarity between the structure of this 2-oxoglutarate dehydrogenase complex lipoyl domain and the structures of the lipoyl domains of pyruvate dehydrogenase complexes from Bacillus stearothermophilus and Escherichia coli, and conformational differences occur primarily in a solvent-exposed loop close in space to the lipoylation site. The lipoyl domain structure is discussed in relation to the process of molecular recognition of lipoyl domains by their parent 2-oxo acid dehydrogenase.
About this Structure
1GHK is a Single protein structure of sequence from Azotobacter vinelandii. Full crystallographic information is available from OCA.
Reference
Solution structure of the lipoyl domain of the 2-oxoglutarate dehydrogenase complex from Azotobacter vinelandii., Berg A, Vervoort J, de Kok A, J Mol Biol. 1996 Aug 23;261(3):432-42. PMID:8780784
Page seeded by OCA on Thu Mar 20 11:23:10 2008
