1ult: Difference between revisions
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|PDB= 1ult |SIZE=350|CAPTION= <scene name='initialview01'>1ult</scene>, resolution 2.55Å | |PDB= 1ult |SIZE=350|CAPTION= <scene name='initialview01'>1ult</scene>, resolution 2.55Å | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand=CIT:CITRIC ACID'>CIT</scene> | |LIGAND= <scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene> | ||
|ACTIVITY= [http://en.wikipedia.org/wiki/Long-chain-fatty-acid--CoA_ligase Long-chain-fatty-acid--CoA ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.2.1.3 6.2.1.3] | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Long-chain-fatty-acid--CoA_ligase Long-chain-fatty-acid--CoA ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.2.1.3 6.2.1.3] </span> | ||
|GENE= | |GENE= | ||
|DOMAIN= | |||
|RELATEDENTRY= | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ult FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ult OCA], [http://www.ebi.ac.uk/pdbsum/1ult PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1ult RCSB]</span> | |||
}} | }} | ||
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[[Category: Yamamoto, M.]] | [[Category: Yamamoto, M.]] | ||
[[Category: Yokoyama, S.]] | [[Category: Yokoyama, S.]] | ||
[[Category: ligase]] | [[Category: ligase]] | ||
[[Category: riken structural genomics/proteomics initiative]] | [[Category: riken structural genomics/proteomics initiative]] | ||
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[[Category: structural genomic]] | [[Category: structural genomic]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 00:12:04 2008'' | ||
Revision as of 00:12, 31 March 2008
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| , resolution 2.55Å | |||||||
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| Ligands: | |||||||
| Activity: | Long-chain-fatty-acid--CoA ligase, with EC number 6.2.1.3 | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of tt0168 from Thermus thermophilus HB8
OverviewOverview
Long chain fatty acyl-CoA synthetases are responsible for fatty acid degradation as well as physiological regulation of cellular functions via the production of long chain fatty acyl-CoA esters. We report the first crystal structures of long chain fatty acyl-CoA synthetase homodimer (LC-FACS) from Thermus thermophilus HB8 (ttLC-FACS), including complexes with the ATP analogue adenosine 5'-(beta,gamma-imido) triphosphate (AMP-PNP) and myristoyl-AMP. ttLC-FACS is a member of the adenylate forming enzyme superfamily that catalyzes the ATP-dependent acylation of fatty acid in a two-step reaction. The first reaction step was shown to propagate in AMP-PNP complex crystals soaked with myristate solution. Myristoyl-AMP was identified as the intermediate. The AMP-PNP and the myristoyl-AMP complex structures show an identical closed conformation of the small C-terminal domains, whereas the uncomplexed form shows a variety of open conformations. Upon ATP binding, the fatty acid-binding tunnel gated by an aromatic residue opens to the ATP-binding site. The gated fatty acid-binding tunnel appears only to allow one-way movement of the fatty acid during overall catalysis. The protein incorporates a hydrophobic branch from the fatty acid-binding tunnel that is responsible for substrate specificity. Based on these high resolution crystal structures, we propose a unidirectional Bi Uni Uni Bi Ping-Pong mechanism for the two-step acylation by ttLC-FACS.
About this StructureAbout this Structure
1ULT is a Single protein structure of sequence from Thermus thermophilus. Full crystallographic information is available from OCA.
ReferenceReference
Structural basis of the substrate-specific two-step catalysis of long chain fatty acyl-CoA synthetase dimer., Hisanaga Y, Ago H, Nakagawa N, Hamada K, Ida K, Yamamoto M, Hori T, Arii Y, Sugahara M, Kuramitsu S, Yokoyama S, Miyano M, J Biol Chem. 2004 Jul 23;279(30):31717-26. Epub 2004 May 15. PMID:15145952
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Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)
OCA- Pages with broken file links
- Long-chain-fatty-acid--CoA ligase
- Single protein
- Thermus thermophilus
- Ago, H.
- Arii, Y.
- Hamada, K.
- Hisanaga, Y.
- Hori, T.
- Ida, K.
- Kanda, H.
- Kuramitsu, S.
- Miyano, M.
- Nakatsu, T.
- RSGI, RIKEN Structural Genomics/Proteomics Initiative.
- Sugahara, M.
- Yamamoto, M.
- Yokoyama, S.
- Ligase
- Riken structural genomics/proteomics initiative
- Rsgi
- Structural genomic