3a12

From Proteopedia

(Difference between revisions)

Revision as of 09:16, 4 August 2016

Crystal structure of Type III Rubisco complexed with 2-CABP

Structural highlights

3a12 is a 10 chain structure with sequence from Pyrococcus kodakaraensis (strain kod1). Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
NonStd Res:
Related:	1geh, 3a13
Gene:	rbcL, TK2290 (Pyrococcus kodakaraensis (strain KOD1))
Activity:	Ribulose-bisphosphate carboxylase, with EC number 4.1.1.39
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[RBL_THEKO] Catalyzes the addition of molecular CO(2) and H(2)O to ribulose 1,5-bisphosphate (RuBP), generating two molecules of 3-phosphoglycerate (3-PGA). Functions in an archaeal AMP degradation pathway, together with AMP phosphorylase and R15P isomerase.[HAMAP-Rule:MF_01133]^[1] ^[2] ^[3]

Evolutionary Conservation

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

Publication Abstract from PubMed

The Calvin-Benson-Bassham cycle is responsible for carbon dioxide fixation in all plants, algae, and cyanobacteria. The enzyme that catalyzes the carbon dioxide-fixing reaction is ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco). Rubisco from a hyperthermophilic archaeon Thermococcus kodakarensis (Tk-Rubisco) belongs to the type III group, and shows high activity at high temperatures. We have previously found that replacement of the entire alpha-helix 6 of Tk-Rubisco with the corresponding region of the spinach enzyme (SP6 mutant) results in an improvement of catalytic performance at mesophilic temperatures, both in vivo and in vitro, whereas the former and latter half-replacements of the alpha-helix 6 (SP4 and SP5 mutants) do not yield such improvement. We report here the crystal structures of the wild-type Tk-Rubisco and the mutants SP4 and SP6, and discuss the relationships between their structures and enzymatic activities. A comparison among these structures shows the movement and the increase of temperature factors of alpha-helix 6 induced by four essential factors. We thus supposed that an increase in the flexibility of the alpha-helix 6 and loop 6 regions was important to increase the catalytic activity of Tk-Rubisco at ambient temperatures. Based on this structural information, we constructed a new mutant, SP5-V330T, which was designed to have significantly greater flexibility in the above region, and it proved to exhibit the highest activity among all mutants examined to date. The thermostability of the SP5-V330T mutant was lower than that of wild-type Tk-Rubisco, providing further support on the relationship between flexibility and activity at ambient temperatures.

Structure-based catalytic optimization of a type III Rubisco from a hyperthermophile.,Nishitani Y, Yoshida S, Fujihashi M, Kitagawa K, Doi T, Atomi H, Imanaka T, Miki K J Biol Chem. 2010 Dec 10;285(50):39339-47. Epub 2010 Oct 6. PMID:20926376^[4]

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

References

↑ Sato T, Atomi H, Imanaka T. Archaeal type III RuBisCOs function in a pathway for AMP metabolism. Science. 2007 Feb 16;315(5814):1003-6. PMID:17303759 doi:http://dx.doi.org/10.1126/science.1135999
↑ Nishitani Y, Yoshida S, Fujihashi M, Kitagawa K, Doi T, Atomi H, Imanaka T, Miki K. Structure-based catalytic optimization of a type III Rubisco from a hyperthermophile. J Biol Chem. 2010 Dec 10;285(50):39339-47. Epub 2010 Oct 6. PMID:20926376 doi:10.1074/jbc.M110.147587
↑ Ezaki S, Maeda N, Kishimoto T, Atomi H, Imanaka T. Presence of a structurally novel type ribulose-bisphosphate carboxylase/oxygenase in the hyperthermophilic archaeon, Pyrococcus kodakaraensis KOD1. J Biol Chem. 1999 Feb 19;274(8):5078-82. PMID:9988755
↑ Nishitani Y, Yoshida S, Fujihashi M, Kitagawa K, Doi T, Atomi H, Imanaka T, Miki K. Structure-based catalytic optimization of a type III Rubisco from a hyperthermophile. J Biol Chem. 2010 Dec 10;285(50):39339-47. Epub 2010 Oct 6. PMID:20926376 doi:10.1074/jbc.M110.147587

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3a12"

@@ Line 1: / Line 1: @@
 ==Crystal structure of Type III Rubisco complexed with 2-CABP==
 <StructureSection load='3a12' size='340' side='right' caption='[[3a12]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3a12]] is a 10 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermococcus_kodakarensis Thermococcus kodakarensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A12 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3A12 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3a12]] is a 10 chain structure with sequence from [http://en.wikipedia.org/wiki/Pyrococcus_kodakaraensis_(strain_kod1) Pyrococcus kodakaraensis (strain kod1)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A12 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3A12 FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CAP:2-CARBOXYARABINITOL-1,5-DIPHOSPHATE'>CAP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=KCX:LYSINE+NZ-CARBOXYLIC+ACID'>KCX</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1geh|1geh]], [[3a13|3a13]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">rbcL, TK2290 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=311400 Thermococcus kodakarensis])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">rbcL, TK2290 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=69014 Pyrococcus kodakaraensis (strain KOD1)])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ribulose-bisphosphate_carboxylase Ribulose-bisphosphate carboxylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.1.1.39 4.1.1.39] </span></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=3a12 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a12 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3a12 RCSB], [http://www.ebi.ac.uk/pdbsum/3a12 PDBsum]</span></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=3a12 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a12 OCA], [http://pdbe.org/3a12 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3a12 RCSB], [http://www.ebi.ac.uk/pdbsum/3a12 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3a12 ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/RBL_PYRKO RBL_PYRKO]] Catalyzes the addition of molecular CO(2) and H(2)O to ribulose 1,5-bisphosphate (RuBP), generating two molecules of 3-phosphoglycerate (3-PGA). Functions in an archaeal AMP degradation pathway, together with AMP phosphorylase and R15P isomerase.<ref>PMID:17303759</ref> <ref>PMID:20926376</ref>
+[[http://www.uniprot.org/uniprot/RBL_THEKO RBL_THEKO]] Catalyzes the addition of molecular CO(2) and H(2)O to ribulose 1,5-bisphosphate (RuBP), generating two molecules of 3-phosphoglycerate (3-PGA). Functions in an archaeal AMP degradation pathway, together with AMP phosphorylase and R15P isomerase.[HAMAP-Rule:MF_01133]<ref>PMID:17303759</ref> <ref>PMID:20926376</ref> <ref>PMID:9988755</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 20: / Line 21: @@
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
-</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/chain_selection.php?pdb_ID=2ata 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=3a12 ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 30: / Line 31: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3a12" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 38: / Line 40: @@
 </StructureSection>
 [[Category: Ribulose-bisphosphate carboxylase]]
-[[Category: Thermococcus kodakarensis]]
 [[Category: Atomi, H]]
 [[Category: Doi, T]]

3a12

From Proteopedia

Revision as of 09:16, 4 August 2016

Crystal structure of Type III Rubisco complexed with 2-CABP

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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