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1pi1

From Proteopedia

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Current revision

Crystal structure of a human Mob1 protein; toward understanding Mob-regulated cell cycle pathways.

Structural highlights

1pi1 is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

MOB1A_HUMAN Activator of LATS1/2 in the Hippo signaling pathway which plays a pivotal role in organ size control and tumor suppression by restricting proliferation and promoting apoptosis. The core of this pathway is composed of a kinase cascade wherein STK3/MST2 and STK4/MST1, in complex with its regulatory protein SAV1, phosphorylates and activates LATS1/2 in complex with its regulatory protein MOB1, which in turn phosphorylates and inactivates YAP1 oncoprotein and WWTR1/TAZ. Phosphorylation of YAP1 by LATS1/2 inhibits its translocation into the nucleus to regulate cellular genes important for cell proliferation, cell death, and cell migration. Stimulates the kinase activity of STK38 and STK38L. Acts cooperatively with STK3/MST2 to activate STK38.^[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 Mob protein family comprises a group of highly conserved eukaryotic proteins whose founding member functions in the mitotic exit network. At the molecular level, Mob proteins act as kinase-activating subunits. We cloned a human Mob1 family member, Mob1A, and determined its three-dimensional structure by X-ray crystallography. The core of Mob1A consists of a four-helix bundle that is stabilized by a bound zinc atom. The N-terminal helix of the bundle is solvent exposed and together with adjacent secondary structure elements forms an evolutionarily conserved surface with a strong negative electrostatic potential. Several conditional mutant alleles of S. cerevisiae MOB1 target this surface and decrease its net negative charge. Interestingly, the kinases with which yeast Mob proteins interact have two conserved basic regions within their N-terminal lobe. Thus, Mob proteins may regulate their target kinases through electrostatic interactions mediated by conserved charged surfaces.

Crystal structure of a human Mob1 protein: toward understanding Mob-regulated cell cycle pathways.,Stavridi ES, Harris KG, Huyen Y, Bothos J, Verwoerd PM, Stayrook SE, Pavletich NP, Jeffrey PD, Luca FC Structure. 2003 Sep;11(9):1163-70. PMID:12962634^[4]

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

References

↑ Bichsel SJ, Tamaskovic R, Stegert MR, Hemmings BA. Mechanism of activation of NDR (nuclear Dbf2-related) protein kinase by the hMOB1 protein. J Biol Chem. 2004 Aug 20;279(34):35228-35. Epub 2004 Jun 14. PMID:15197186 doi:10.1074/jbc.M404542200
↑ Hirabayashi S, Nakagawa K, Sumita K, Hidaka S, Kawai T, Ikeda M, Kawata A, Ohno K, Hata Y. Threonine 74 of MOB1 is a putative key phosphorylation site by MST2 to form the scaffold to activate nuclear Dbf2-related kinase 1. Oncogene. 2008 Jul 17;27(31):4281-92. doi: 10.1038/onc.2008.66. Epub 2008 Mar 24. PMID:18362890 doi:10.1038/onc.2008.66
↑ Chow A, Hao Y, Yang X. Molecular characterization of human homologs of yeast MOB1. Int J Cancer. 2010 May 1;126(9):2079-89. doi: 10.1002/ijc.24878. PMID:19739119 doi:10.1002/ijc.24878
↑ Stavridi ES, Harris KG, Huyen Y, Bothos J, Verwoerd PM, Stayrook SE, Pavletich NP, Jeffrey PD, Luca FC. Crystal structure of a human Mob1 protein: toward understanding Mob-regulated cell cycle pathways. Structure. 2003 Sep;11(9):1163-70. PMID:12962634

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/1pi1"

@@ Line 4: / Line 4: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1pi1]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PI1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1PI1 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</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]] 2&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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=1pi1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pi1 OCA], [https://pdbe.org/1pi1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1pi1 RCSB], [https://www.ebi.ac.uk/pdbsum/1pi1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1pi1 ProSAT]</span></td></tr>
 </table>

1pi1

From Proteopedia

Current revision

Crystal structure of a human Mob1 protein; toward understanding Mob-regulated cell cycle pathways.

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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