1kas: Difference between revisions

From Proteopedia
Jump to navigation Jump to search
← Older edit
No edit summary
No edit summary
 
Line 3: Line 3:
<StructureSection load='1kas' size='340' side='right'caption='[[1kas]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
<StructureSection load='1kas' size='340' side='right'caption='[[1kas]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1kas]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. The June 2007 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Fatty Acid Synthase''  by David S. Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2007_6 10.2210/rcsb_pdb/mom_2007_6]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KAS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KAS FirstGlance]. <br>
<table><tr><td colspan='2'>[[1kas]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. The June 2007 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Fatty Acid Synthase''  by David S. Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2007_6 10.2210/rcsb_pdb/mom_2007_6]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KAS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KAS FirstGlance]. <br>
</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Beta-ketoacyl-[acyl-carrier-protein]_synthase_I Beta-ketoacyl-[acyl-carrier-protein] synthase I], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.41 2.3.1.41] </span></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1kas FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kas OCA], [https://pdbe.org/1kas PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1kas RCSB], [https://www.ebi.ac.uk/pdbsum/1kas PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1kas ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1kas FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kas OCA], [https://pdbe.org/1kas PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1kas RCSB], [https://www.ebi.ac.uk/pdbsum/1kas PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1kas ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/FABF_ECOLI FABF_ECOLI]] Catalyzes the condensation reaction of fatty acid synthesis by the addition to an acyl acceptor of two carbons from malonyl-ACP. Has a preference for short chain acid substrates and may function to supply the octanoic substrates for lipoic acid biosynthesis.  
[https://www.uniprot.org/uniprot/FABF_ECOLI FABF_ECOLI] Catalyzes the condensation reaction of fatty acid synthesis by the addition to an acyl acceptor of two carbons from malonyl-ACP. Has a preference for short chain acid substrates and may function to supply the octanoic substrates for lipoic acid biosynthesis.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Line 19: Line 19:
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1kas ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1kas ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
In the biosynthesis of fatty acids, the beta-ketoacyl-acyl carrier protein (ACP) synthases catalyze chain elongation by the addition of two-carbon units derived from malonyl-ACP to an acyl group bound to either ACP or CoA. The crystal structure of beta-ketoacyl synthase II from Escherichia coli has been determined with the multiple isomorphous replacement method and refined at 2.4 A resolution. The subunit consists of two mixed five-stranded beta-sheets surrounded by alpha-helices. The two sheets are packed against each other in such a way that the fold can be described as consisting of five layers, alpha-beta-alpha-beta-alpha. The enzyme is a homodimer, and the subunits are related by a crystallographic 2-fold axis. The two active sites are located near the dimer interface but are approximately 25 A apart. The proposed nucleophile in the reaction, Cys163, is located at the bottom of a mainly hydrophobic pocket which is also lined with several conserved polar residues. In spite of very low overall sequence homology, the structure of beta-ketoacyl synthase is similar to that of thiolase, an enzyme involved in the beta-oxidation pathway, indicating that both enzymes might have a common ancestor.
Crystal structure of beta-ketoacyl-acyl carrier protein synthase II from E.coli reveals the molecular architecture of condensing enzymes.,Huang W, Jia J, Edwards P, Dehesh K, Schneider G, Lindqvist Y EMBO J. 1998 Mar 2;17(5):1183-91. PMID:9482715<ref>PMID:9482715</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1kas" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Acyl carrier protein synthase 3D structures|Acyl carrier protein synthase 3D structures]]
*[[Acyl carrier protein synthase 3D structures|Acyl carrier protein synthase 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bacillus coli migula 1895]]
[[Category: Escherichia coli]]
[[Category: Fatty Acid Synthase]]
[[Category: Fatty Acid Synthase]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: Dehesh, K]]
[[Category: Dehesh K]]
[[Category: Edwards, P]]
[[Category: Edwards P]]
[[Category: Huang, W]]
[[Category: Huang W]]
[[Category: Jia, J]]
[[Category: Jia J]]
[[Category: Lindqvist, Y]]
[[Category: Lindqvist Y]]
[[Category: Schneider, G]]
[[Category: Schneider G]]
[[Category: Acyltransferase]]
[[Category: Alpha-beta protein]]
[[Category: Alpha-beta-alpha-beta-alpha]]
[[Category: Condensing enzyme]]
[[Category: Fatty acid elongation]]
[[Category: Five-layered fold]]
[[Category: Lipid metabolism]]

Latest revision as of 10:45, 7 February 2024

BETA-KETOACYL-ACP SYNTHASE II FROM ESCHERICHIA COLIBETA-KETOACYL-ACP SYNTHASE II FROM ESCHERICHIA COLI

Structural highlights

1kas is a 1 chain structure with sequence from Escherichia coli. The June 2007 RCSB PDB Molecule of the Month feature on Fatty Acid Synthase by David S. Goodsell is 10.2210/rcsb_pdb/mom_2007_6. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.4Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

FABF_ECOLI Catalyzes the condensation reaction of fatty acid synthesis by the addition to an acyl acceptor of two carbons from malonyl-ACP. Has a preference for short chain acid substrates and may function to supply the octanoic substrates for lipoic acid biosynthesis.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

1kas, resolution 2.40Å

Drag the structure with the mouse to rotate

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

OCA
Retrieved from "https://proteopedia.openfox.io/wiki/index.php?title=1kas&oldid=4045765"