2vbt

From Proteopedia

(Difference between revisions)

Revision as of 08:16, 12 September 2018

Riboflavin kinase Mj0056 from Methanocaldococcus jannaschii in complex with CDP and PO4

Structural highlights

2vbt is a 1 chain structure with sequence from Atcc 43067. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Related:	2p3m, 2vbs, 2vbu, 2vbv
Activity:	CTP-dependent riboflavin kinase, with EC number 2.7.1.161
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[RIFK_METJA] Catalyzes the CTP-dependent phosphorylation of riboflavin (vitamin B2) to form flavin mononucleotide (FMN). Can also utilize UTP as the phosphate donor, although less efficiently, and it is unclear if ATP and GTP can also serve as substrates (PubMed:18245297) or not (PubMed:18073108).^[1] ^[2]

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

Proteins of the cradle-loop barrel metafold are formed by duplication of a conserved betaalphabeta-element, suggesting a common evolutionary origin from an ancestral group of nucleic acid-binding proteins. The basal fold within this metafold, the RIFT barrel, is also found in a wide range of enzymes, whose homologous relationship with the nucleic acid-binding group is unclear. We have characterized a protein family that is intermediate in sequence and structure between the basal group of cradle-loop barrels and one family of RIFT-barrel enzymes, the riboflavin kinases. We report the structure, substrate-binding mode, and catalytic activity for one of these proteins, Methanocaldococcus jannaschii Mj0056, which is an archaeal riboflavin kinase. Mj0056 is unusual in utilizing CTP rather than ATP as the donor nucleotide, and sequence conservation in the relevant residues suggests that this is a general feature of archaeal riboflavin kinases.

A CTP-dependent archaeal riboflavin kinase forms a bridge in the evolution of cradle-loop barrels.,Ammelburg M, Hartmann MD, Djuranovic S, Alva V, Koretke KK, Martin J, Sauer G, Truffault V, Zeth K, Lupas AN, Coles M Structure. 2007 Dec;15(12):1577-90. PMID:18073108^[3]

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

References

↑ Ammelburg M, Hartmann MD, Djuranovic S, Alva V, Koretke KK, Martin J, Sauer G, Truffault V, Zeth K, Lupas AN, Coles M. A CTP-dependent archaeal riboflavin kinase forms a bridge in the evolution of cradle-loop barrels. Structure. 2007 Dec;15(12):1577-90. PMID:18073108 doi:10.1016/j.str.2007.09.027
↑ Mashhadi Z, Zhang H, Xu H, White RH. Identification and characterization of an archaeon-specific riboflavin kinase. J Bacteriol. 2008 Apr;190(7):2615-8. doi: 10.1128/JB.01900-07. Epub 2008 Feb 1. PMID:18245297 doi:http://dx.doi.org/10.1128/JB.01900-07
↑ Ammelburg M, Hartmann MD, Djuranovic S, Alva V, Koretke KK, Martin J, Sauer G, Truffault V, Zeth K, Lupas AN, Coles M. A CTP-dependent archaeal riboflavin kinase forms a bridge in the evolution of cradle-loop barrels. Structure. 2007 Dec;15(12):1577-90. PMID:18073108 doi:10.1016/j.str.2007.09.027

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2vbt"

@@ Line 1: / Line 1: @@
-==RIBOFLAVIN KINASE MJ0056 FROM METHANOCALDOCOCCUS JANNASCHII IN COMPLEX WITH CDP AND PO4==
+==Riboflavin kinase Mj0056 from Methanocaldococcus jannaschii in complex with CDP and PO4==
 <StructureSection load='2vbt' size='340' side='right' caption='[[2vbt]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
 == Structural highlights ==
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2p3m|2p3m]], [[2vbs|2vbs]], [[2vbu|2vbu]], [[2vbv|2vbv]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/CTP-dependent_riboflavin_kinase CTP-dependent riboflavin kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.161 2.7.1.161] </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=2vbt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vbt OCA], [http://pdbe.org/2vbt PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2vbt RCSB], [http://www.ebi.ac.uk/pdbsum/2vbt 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=2vbt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vbt OCA], [http://pdbe.org/2vbt PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2vbt RCSB], [http://www.ebi.ac.uk/pdbsum/2vbt PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2vbt ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/vb/2vbt_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/vb/2vbt_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

2vbt

From Proteopedia

Revision as of 08:16, 12 September 2018

Riboflavin kinase Mj0056 from Methanocaldococcus jannaschii in complex with CDP and PO4

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

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Proteopedia Page Contributors and Editors (what is this?)

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