6k3c

From Proteopedia

(Difference between revisions)

Current revision

Crystal structure of class I PHA synthase (PhaC) mutant from Chromobacterium sp. USM2 bound to Coenzyme A.

Structural highlights

6k3c is a 2 chain structure with sequence from Chromobacterium sp. USM2. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 3.074Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

E1APK1_9NEIS

Publication Abstract from PubMed

Biodegradable polyester polyhydroxyalkanoate (PHA) is a promising bioplastic material for industrial use as a replacement for petroleum-based plastics. PHA synthase PhaC forms an active dimer to polymerize acyl moieties from the substrate acyl-coenzyme A (CoA) into PHA polymers. Here we present the crystal structure of the catalytic domain of PhaC from Chromobacterium sp. USM2, bound to CoA. The structure reveals an asymmetric dimer, in which one protomer adopts an open conformation bound to CoA, whereas the other adopts a closed conformation in a CoA-free form. The open conformation is stabilized by the asymmetric dimerization and enables PhaC to accommodate CoA and also to create the product egress path. The bound CoA molecule has its beta-mercaptoethanolamine moiety extended into the active site with the terminal SH group close to active center Cys291, enabling formation of the reaction intermediate by acylation of Cys291.

Asymmetric Open-Closed Dimer Mechanism of Polyhydroxyalkanoate Synthase PhaC.,Chek MF, Kim SY, Mori T, Tan HT, Sudesh K, Hakoshima T iScience. 2020 May 22;23(5):101084. doi: 10.1016/j.isci.2020.101084. Epub 2020, Apr 21. PMID:32388399^[1]

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

References

↑ Chek MF, Kim SY, Mori T, Tan HT, Sudesh K, Hakoshima T. Asymmetric Open-Closed Dimer Mechanism of Polyhydroxyalkanoate Synthase PhaC. iScience. 2020 May 22;23(5):101084. doi: 10.1016/j.isci.2020.101084. Epub 2020, Apr 21. PMID:32388399 doi:http://dx.doi.org/10.1016/j.isci.2020.101084

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/6k3c"

@@ Line 3: / Line 3: @@
 <StructureSection load='6k3c' size='340' side='right'caption='[[6k3c]], [[Resolution|resolution]] 3.07&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[6k3c]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Chromobacterium_sp._usm2 Chromobacterium sp. usm2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6K3C OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6K3C FirstGlance]. <br>
+<table><tr><td colspan='2'>[[6k3c]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Chromobacterium_sp._USM2 Chromobacterium sp. USM2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6K3C OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6K3C FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=COA:COENZYME+A'>COA</scene></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]] 3.074&#8491;</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">phaC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=611307 Chromobacterium sp. USM2])</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=COA:COENZYME+A'>COA</scene></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6k3c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6k3c OCA], [http://pdbe.org/6k3c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6k3c RCSB], [http://www.ebi.ac.uk/pdbsum/6k3c PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6k3c 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=6k3c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6k3c OCA], [https://pdbe.org/6k3c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6k3c RCSB], [https://www.ebi.ac.uk/pdbsum/6k3c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6k3c ProSAT]</span></td></tr>
 </table>
+== Function ==
+[https://www.uniprot.org/uniprot/E1APK1_9NEIS E1APK1_9NEIS]
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 21: / Line 23: @@
 __TOC__
 </StructureSection>
-[[Category: Chromobacterium sp. usm2]]
+[[Category: Chromobacterium sp. USM2]]
 [[Category: Large Structures]]
-[[Category: Chek, M F]]
+[[Category: Chek MF]]
-[[Category: Hakoshima, T]]
+[[Category: Hakoshima T]]
-[[Category: Kim, S Y]]
+[[Category: Kim SY]]
-[[Category: Mori, T]]
+[[Category: Mori T]]
-[[Category: Bioplastic synthase]]
-[[Category: Biosynthetic protein]]
-[[Category: Catalytic domain]]
-[[Category: Coa binding]]
-[[Category: Open conformation]]
-[[Category: Open-closed dimer]]

6k3c

From Proteopedia

Current revision

Crystal structure of class I PHA synthase (PhaC) mutant from Chromobacterium sp. USM2 bound to Coenzyme A.

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox