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.

6plm

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 12:06, 1 January 2020

Legionella pneumophila SidJ/ Calmodulin 2 complex

Structural highlights

6plm is a 4 chain structure with sequence from Human and Legph. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Gene:	lpg2155 (LEGPH), CALM2, CAM2, CAMB (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[CALM2_HUMAN] Catecholaminergic polymorphic ventricular tachycardia;Brugada syndrome;Romano-Ward syndrome. The disease is caused by mutations affecting the gene represented in this entry. Mutations in CALM2 are the cause of LQT15.

Function

[CALM2_HUMAN] Calmodulin mediates the control of a large number of enzymes, ion channels, aquaporins and other proteins through calcium-binding. Among the enzymes to be stimulated by the calmodulin-calcium complex are a number of protein kinases and phosphatases. Together with CCP110 and centrin, is involved in a genetic pathway that regulates the centrosome cycle and progression through cytokinesis (PubMed:16760425). Mediates calcium-dependent inactivation of CACNA1C (PubMed:26969752). Positively regulates calcium-activated potassium channel activity of KCNN2 (PubMed:27165696).^[1] ^[2] ^[3]

Publication Abstract from PubMed

Pseudokinases are considered to be the inactive counterparts of conventional protein kinases and comprise approximately 10% of the human and mouse kinomes. Here, we report the crystal structure of the Legionella pneumophila effector protein, SidJ, in complex with the eukaryotic Ca(2+)-binding regulator, calmodulin (CaM). The structure reveals that SidJ contains a protein kinase-like fold domain, which retains a majority of the characteristic kinase catalytic motifs. However, SidJ fails to demonstrate kinase activity. Instead, mass spectrometry and in vitro biochemical analyses demonstrate that SidJ modifies another Legionella effector SdeA, an unconventional phosphoribosyl ubiquitin ligase, by adding glutamate molecules to a specific residue of SdeA in a CaM-dependent manner. Furthermore, we show that SidJ-mediated polyglutamylation suppresses the ADP-ribosylation activity. Our work further implies that some pseudokinases may possess ATP-dependent activities other than conventional phosphorylation.

Protein polyglutamylation catalyzed by the bacterial calmodulin-dependent pseudokinase SidJ.,Sulpizio A, Minelli ME, Wan M, Burrowes PD, Wu X, Sanford EJ, Shin JH, Williams BC, Goldberg ML, Smolka MB, Mao Y Elife. 2019 Nov 4;8. pii: 51162. doi: 10.7554/eLife.51162. PMID:31682223^[4]

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

References

↑ Tsang WY, Spektor A, Luciano DJ, Indjeian VB, Chen Z, Salisbury JL, Sanchez I, Dynlacht BD. CP110 cooperates with two calcium-binding proteins to regulate cytokinesis and genome stability. Mol Biol Cell. 2006 Aug;17(8):3423-34. Epub 2006 Jun 7. PMID:16760425 doi:10.1091/mbc.E06-04-0371
↑ Boczek NJ, Gomez-Hurtado N, Ye D, Calvert ML, Tester DJ, Kryshtal D, Hwang HS, Johnson CN, Chazin WJ, Loporcaro CG, Shah M, Papez AL, Lau YR, Kanter R, Knollmann BC, Ackerman MJ. Spectrum and Prevalence of CALM1-, CALM2-, and CALM3-Encoded Calmodulin Variants in Long QT Syndrome and Functional Characterization of a Novel Long QT Syndrome-Associated Calmodulin Missense Variant, E141G. Circ Cardiovasc Genet. 2016 Apr;9(2):136-146. doi:, 10.1161/CIRCGENETICS.115.001323. Epub 2016 Mar 11. PMID:26969752 doi:http://dx.doi.org/10.1161/CIRCGENETICS.115.001323
↑ Yu CC, Ko JS, Ai T, Tsai WC, Chen Z, Rubart M, Vatta M, Everett TH 4th, George AL Jr, Chen PS. Arrhythmogenic calmodulin mutations impede activation of small-conductance calcium-activated potassium current. Heart Rhythm. 2016 Aug;13(8):1716-23. doi: 10.1016/j.hrthm.2016.05.009. Epub 2016, May 7. PMID:27165696 doi:http://dx.doi.org/10.1016/j.hrthm.2016.05.009
↑ Sulpizio A, Minelli ME, Wan M, Burrowes PD, Wu X, Sanford EJ, Shin JH, Williams BC, Goldberg ML, Smolka MB, Mao Y. Protein polyglutamylation catalyzed by the bacterial calmodulin-dependent pseudokinase SidJ. Elife. 2019 Nov 4;8. pii: 51162. doi: 10.7554/eLife.51162. PMID:31682223 doi:http://dx.doi.org/10.7554/eLife.51162

1 Structural highlights
2 Disease
3 Function
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/6plm"

@@ Line 3: / Line 3: @@
 <StructureSection load='6plm' size='340' side='right'caption='[[6plm]], [[Resolution|resolution]] 2.59&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[6plm]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6PLM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6PLM FirstGlance]. <br>
+<table><tr><td colspan='2'>[[6plm]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human] and [http://en.wikipedia.org/wiki/Legph Legph]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6PLM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6PLM FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=AMP:ADENOSINE+MONOPHOSPHATE'>AMP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=POP:PYROPHOSPHATE+2-'>POP</scene></td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">lpg2155 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=272624 LEGPH]), CALM2, CAM2, CAMB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=6plm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6plm OCA], [http://pdbe.org/6plm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6plm RCSB], [http://www.ebi.ac.uk/pdbsum/6plm PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6plm ProSAT]</span></td></tr>
 </table>
@@ Line 24: / Line 25: @@
 __TOC__
 </StructureSection>
+[[Category: Human]]
 [[Category: Large Structures]]
+[[Category: Legph]]
 [[Category: Mao, Y]]
 [[Category: Minelli, M E]]

6plm

From Proteopedia

Revision as of 12:06, 1 January 2020

Legionella pneumophila SidJ/ Calmodulin 2 complex

Structural highlights

Disease

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox