1fjm

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(Difference between revisions)

Revision as of 10:48, 13 September 2017

Protein serine/threonine phosphatase-1 (alpha isoform, type 1) complexed with microcystin-LR toxin

Structural highlights

1fjm is a 4 chain structure with sequence from Microcystis aeruginosa and Oryctolagus cuniculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
NonStd Res:	, , , ,
Activity:	Phosphoprotein phosphatase, with EC number 3.1.3.16
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[PP1A_HUMAN] Protein phosphatase that associates with over 200 regulatory proteins to form highly specific holoenzymes which dephosphorylate hundreds of biological targets. Protein phosphatase 1 (PP1) is essential for cell division, and participates in the regulation of glycogen metabolism, muscle contractility and protein synthesis. Involved in regulation of ionic conductances and long-term synaptic plasticity. May play an important role in dephosphorylating substrates such as the postsynaptic density-associated Ca(2+)/calmodulin dependent protein kinase II. Component of the PTW/PP1 phosphatase complex, which plays a role in the control of chromatin structure and cell cycle progression during the transition from mitosis into interphase. Regulates NEK2 function in terms of kinase activity and centrosome number and splitting, both in the presence and absence of radiation-induced DNA damage. Regulator of neural tube and optic fissure closure, and enteric neural crest cell (ENCCs) migration during development.^[1]

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 crystal structure of mammalian protein phosphatase-1, complexed with the toxin microcystin and determined at 2.1 A resolution, reveals that it is a metalloenzyme unrelated in architecture to the tyrosine phosphatases. Two metal ions are positioned by a central beta-alpha-beta-alpha-beta scaffold at the active site, from which emanate three surface grooves that are potential binding sites for substrates and inhibitors. The carboxy terminus is positioned at the end of one of the grooves such that regulatory sequences following the domain might modulate function. The fold of the catalytic domain is expected to be closely preserved in protein phosphatases 2A and 2B (calcineurin).

Three-dimensional structure of the catalytic subunit of protein serine/threonine phosphatase-1.,Goldberg J, Huang HB, Kwon YG, Greengard P, Nairn AC, Kuriyan J Nature. 1995 Aug 31;376(6543):745-53. PMID:7651533^[2]

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

References

↑ Mi J, Guo C, Brautigan DL, Larner JM. Protein phosphatase-1alpha regulates centrosome splitting through Nek2. Cancer Res. 2007 Feb 1;67(3):1082-9. PMID:17283141 doi:10.1158/0008-5472.CAN-06-3071
↑ Goldberg J, Huang HB, Kwon YG, Greengard P, Nairn AC, Kuriyan J. Three-dimensional structure of the catalytic subunit of protein serine/threonine phosphatase-1. Nature. 1995 Aug 31;376(6543):745-53. PMID:7651533 doi:http://dx.doi.org/10.1038/376745a0

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/1fjm"

@@ Line 1: / Line 1: @@
 ==Protein serine/threonine phosphatase-1 (alpha isoform, type 1) complexed with microcystin-LR toxin==
 <StructureSection load='1fjm' size='340' side='right' caption='[[1fjm]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=1ZN:(2S,3S,4E,6E,8S,9S)-3-AMINO-9-METHOXY-2,6,8-TRIMETHYL-10-PHENYLDECA-4,6-DIENOIC+ACID'>1ZN</scene>, <scene name='pdbligand=ACB:3-METHYL-BETA-D-ASPARTIC+ACID'>ACB</scene>, <scene name='pdbligand=DAL:D-ALANINE'>DAL</scene>, <scene name='pdbligand=DAM:N-METHYL-ALPHA-BETA-DEHYDROALANINE'>DAM</scene>, <scene name='pdbligand=FGA:GAMMA-D-GLUTAMIC+ACID'>FGA</scene></td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Phosphoprotein_phosphatase Phosphoprotein phosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.16 3.1.3.16] </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=1fjm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fjm OCA], [http://pdbe.org/1fjm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1fjm RCSB], [http://www.ebi.ac.uk/pdbsum/1fjm 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=1fjm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fjm OCA], [http://pdbe.org/1fjm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1fjm RCSB], [http://www.ebi.ac.uk/pdbsum/1fjm PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1fjm ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 18: / Line 19: @@
     <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=1fjm ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">

1fjm

From Proteopedia

Revision as of 10:48, 13 September 2017

Protein serine/threonine phosphatase-1 (alpha isoform, type 1) complexed with microcystin-LR toxin

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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