This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

5e5n

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Current revision

Ketosynthase from module 6 of the bacillaene synthase from Bacillus subtilis 168 (C167S mutant, crystal form 1)

Structural highlights

5e5n is a 4 chain structure with sequence from Bacillus subtilis subsp. subtilis str. 168. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

PKSL_BACSU Involved in some intermediate steps for the synthesis of the antibiotic polyketide bacillaene which is involved in secondary metabolism.^[1]

Publication Abstract from PubMed

Polyketides such as the clinically-valuable antibacterial agent mupirocin are constructed by architecturally-sophisticated assembly lines known as trans-acyltransferase polyketide synthases. Organelle-sized megacomplexes composed of several copies of trans-acyltransferase polyketide synthase assembly lines have been observed by others through transmission electron microscopy to be located at the Bacillus subtilis plasma membrane, where the synthesis and export of the antibacterial polyketide bacillaene takes place. In this work we analyze ten crystal structures of trans-acyltransferase polyketide synthases ketosynthase domains, seven of which are reported here for the first time, to characterize a motif capable of zippering assembly lines into a megacomplex. While each of the three-helix LINKS (Laterally-INteracting Ketosynthase Sequence) motifs is observed to similarly dock with a spatially-reversed copy of itself through hydrophobic and ionic interactions, the amino acid sequences of this motif are not conserved. Such a code is appropriate for mediating homotypic contacts between assembly lines to ensure the ordered self-assembly of a noncovalent, yet tightly-knit, enzymatic network. LINKS-mediated lateral interactions would also have the effect of bolstering the vertical association of the polypeptides that comprise a polyketide synthase assembly line.

The LINKS motif zippers trans-acyltransferase polyketide synthase assembly lines into a biosynthetic megacomplex.,Gay DC, Wagner DT, Meinke JL, Zogzas CE, Gay GR, Keatinge-Clay AT J Struct Biol. 2016 Mar;193(3):196-205. doi: 10.1016/j.jsb.2015.12.011. Epub 2015, Dec 23. PMID:26724270^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Butcher RA, Schroeder FC, Fischbach MA, Straight PD, Kolter R, Walsh CT, Clardy J. The identification of bacillaene, the product of the PksX megacomplex in Bacillus subtilis. Proc Natl Acad Sci U S A. 2007 Jan 30;104(5):1506-9. Epub 2007 Jan 18. PMID:17234808 doi:http://dx.doi.org/10.1073/pnas.0610503104
↑ Gay DC, Wagner DT, Meinke JL, Zogzas CE, Gay GR, Keatinge-Clay AT. The LINKS motif zippers trans-acyltransferase polyketide synthase assembly lines into a biosynthetic megacomplex. J Struct Biol. 2016 Mar;193(3):196-205. doi: 10.1016/j.jsb.2015.12.011. Epub 2015, Dec 23. PMID:26724270 doi:http://dx.doi.org/10.1016/j.jsb.2015.12.011

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5e5n"

Categories: Bacillus subtilis subsp. subtilis str. 168 | Large Structures | Gay DC | Keatinge-Clay AT | Wagner DT

@@ Line 1: / Line 1: @@
 ==Ketosynthase from module 6 of the bacillaene synthase from Bacillus subtilis 168 (C167S mutant, crystal form 1)==
-<StructureSection load='5e5n' size='340' side='right' caption='[[5e5n]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
+<StructureSection load='5e5n' size='340' side='right'caption='[[5e5n]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5e5n]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5E5N OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5E5N FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5e5n]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_subtilis_subsp._subtilis_str._168 Bacillus subtilis subsp. subtilis str. 168]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5E5N OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5E5N FirstGlance]. <br>
-</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5e6zk|5e6zk]]</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&#8491;</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5e5n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5e5n OCA], [http://pdbe.org/5e5n PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5e5n RCSB], [http://www.ebi.ac.uk/pdbsum/5e5n PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5e5n 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=5e5n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5e5n OCA], [https://pdbe.org/5e5n PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5e5n RCSB], [https://www.ebi.ac.uk/pdbsum/5e5n PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5e5n ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/PKSL_BACSU PKSL_BACSU]] Involved in some intermediate steps for the synthesis of the antibiotic polyketide bacillaene which is involved in secondary metabolism.<ref>PMID:17234808</ref>
+[https://www.uniprot.org/uniprot/PKSL_BACSU PKSL_BACSU] Involved in some intermediate steps for the synthesis of the antibiotic polyketide bacillaene which is involved in secondary metabolism.<ref>PMID:17234808</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 22: / Line 22: @@
 __TOC__
 </StructureSection>
-[[Category: Gay, D C]]
+[[Category: Bacillus subtilis subsp. subtilis str. 168]]
-[[Category: Keatinge-Clay, A T]]
+[[Category: Large Structures]]
-[[Category: Wagner, D T]]
+[[Category: Gay DC]]
-[[Category: Hydrolase]]
+[[Category: Keatinge-Clay AT]]
-[[Category: Polyketide]]
+[[Category: Wagner DT]]
-[[Category: Trans-at ketosynthase]]

5e5n

From Proteopedia

Current revision

Ketosynthase from module 6 of the bacillaene synthase from Bacillus subtilis 168 (C167S mutant, crystal form 1)

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox