1oi2
From Proteopedia
| Line 4: | Line 4: | ||
|PDB= 1oi2 |SIZE=350|CAPTION= <scene name='initialview01'>1oi2</scene>, resolution 1.75Å | |PDB= 1oi2 |SIZE=350|CAPTION= <scene name='initialview01'>1oi2</scene>, resolution 1.75Å | ||
|SITE= <scene name='pdbsite=AC1:So4+Binding+Site+For+Chain+B'>AC1</scene> | |SITE= <scene name='pdbsite=AC1:So4+Binding+Site+For+Chain+B'>AC1</scene> | ||
| - | |LIGAND= <scene name='pdbligand= | + | |LIGAND= <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene> |
| - | |ACTIVITY= [http://en.wikipedia.org/wiki/Glycerone_kinase Glycerone kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.29 2.7.1.29] | + | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Glycerone_kinase Glycerone kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.29 2.7.1.29] </span> |
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1oi2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1oi2 OCA], [http://www.ebi.ac.uk/pdbsum/1oi2 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1oi2 RCSB]</span> | ||
}} | }} | ||
| Line 27: | Line 30: | ||
[[Category: Garcia-Alles, L F.]] | [[Category: Garcia-Alles, L F.]] | ||
[[Category: Siebold, C.]] | [[Category: Siebold, C.]] | ||
| - | [[Category: GOL]] | ||
| - | [[Category: SO4]] | ||
[[Category: dihydroxyacetone kinase]] | [[Category: dihydroxyacetone kinase]] | ||
[[Category: kinase]] | [[Category: kinase]] | ||
[[Category: ycgt]] | [[Category: ycgt]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:45:40 2008'' |
Revision as of 19:45, 30 March 2008
| |||||||
| , resolution 1.75Å | |||||||
|---|---|---|---|---|---|---|---|
| Sites: | |||||||
| Ligands: | , | ||||||
| Activity: | Glycerone kinase, with EC number 2.7.1.29 | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
X-RAY STRUCTURE OF THE DIHYDROXYACETONE KINASE FROM ESCHERICHIA COLI
Overview
Dihydroxyacetone (Dha) kinases are homologous proteins that use different phosphoryl donors, a multiphosphoryl protein of the phosphoenolpyruvate-dependent carbohydrate:phosphotransferase system in bacteria, ATP in animals, plants, and some bacteria. The Dha kinase of Escherichia coli consists of three subunits, DhaK and DhaL, which are colinear to the ATP-dependent Dha kinases of eukaryotes, and the multiphosphoryl protein DhaM. Here we show the crystal structure of the DhaK subunit in complex with Dha at 1.75 A resolution. DhaK is a homodimer with a fold consisting of two six-stranded mixed beta-sheets surrounded by nine alpha-helices and a beta-ribbon covering the exposed edge strand of one sheet. The core of the N-terminal domain has an alpha/beta fold common to subunits of carbohydrate transporters and transcription regulators of the phosphoenolpyruvate-dependent carbohydrate:phosphotransferase system. The core of the C-terminal domain has a fold similar to the C-terminal domain of the cell-division protein FtsZ. A molecule of Dha is covalently bound in hemiaminal linkage to the N epsilon 2 of His-230. The hemiaminal does not participate in covalent catalysis but is the chemical basis for discrimination between short-chain carbonyl compounds and polyols. Paralogs of Dha kinases occur in association with transcription regulators of the TetR/QacR and the SorC families, pointing to their biological role as sensors in signaling.
About this Structure
1OI2 is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
Reference
A mechanism of covalent substrate binding in the x-ray structure of subunit K of the Escherichia coli dihydroxyacetone kinase., Siebold C, Garcia-Alles LF, Erni B, Baumann U, Proc Natl Acad Sci U S A. 2003 Jul 8;100(14):8188-92. Epub 2003 Jun 17. PMID:12813127
Page seeded by OCA on Sun Mar 30 22:45:40 2008
