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.

2pph

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 01:30, 11 September 2015

solution structure of human MEKK3 PB1 domain

Structural highlights

2pph is a 1 chain structure with sequence from Human. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Gene:	MEKK3 (HUMAN)
Activity:	Mitogen-activated protein kinase kinase kinase, with EC number 2.7.11.25
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[M3K3_HUMAN] Component of a protein kinase signal transduction cascade. Mediates activation of the NF-kappa-B, AP1 and DDIT3 transcriptional regulators.^[1] ^[2] ^[3] ^[4]

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

MEKK3 is a mitogen-activated protein kinase kinase kinase that participates in various signaling pathways. One of its functions is to activate the ERK5 signal pathway by phosphorylating and activating MEK5. MEKK3 and MEK5 each harbors a PB1 domain in the N-terminus, and they form a heterodimer via PB1-PB1 domain interaction that was reported to be indispensable to the activation of MEK5. Using NMR spectroscopy, we show here that a prolyl isomerization of the Gln38-Pro39 bond is present in MEKK3 PB1, which is the first case of structural heterogeneity within PB1 domains. We have solved the solution structures of both isomers and found a major difference between them in the Pro39 region. Residues Gly37-Leu40 form a type VIb beta-turn in the cis conformation, whereas no obvious character of beta-turn was observed in the trans conformation. Backbone dynamics studies have unraveled internal motions in the beta3/beta4-turn on a microsecond-millisecond time scale. Further investigation of its binding properties with MEK5 PB1 has demonstrated that MEKK3 PB1 binds MEK5 PB1 tightly with a Kd of about 10(-8) M. Mutagenesis analysis revealed that residues in the basic cluster of MEKK3 PB1 contributes differently to the PB1-PB1 interaction. Residues Lys 7 and Arg 5 play important roles in the interaction with MEK5 PB1. Taken together, this study provides new insights into structural details of MEKK3 PB1 and its binding properties with MEK5 PB1.

Insight into the binding properties of MEKK3 PB1 to MEK5 PB1 from its solution structure.,Hu Q, Shen W, Huang H, Liu J, Zhang J, Huang X, Wu J, Shi Y Biochemistry. 2007 Nov 27;46(47):13478-89. Epub 2007 Nov 7. PMID:17985933^[5]

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

References

↑ Ellinger-Ziegelbauer H, Brown K, Kelly K, Siebenlist U. Direct activation of the stress-activated protein kinase (SAPK) and extracellular signal-regulated protein kinase (ERK) pathways by an inducible mitogen-activated protein Kinase/ERK kinase kinase 3 (MEKK) derivative. J Biol Chem. 1997 Jan 31;272(5):2668-74. PMID:9006902
↑ Nakamura K, Johnson GL. PB1 domains of MEKK2 and MEKK3 interact with the MEK5 PB1 domain for activation of the ERK5 pathway. J Biol Chem. 2003 Sep 26;278(39):36989-92. Epub 2003 Aug 11. PMID:12912994 doi:http://dx.doi.org/10.1074/jbc.C300313200
↑ Huang Q, Yang J, Lin Y, Walker C, Cheng J, Liu ZG, Su B. Differential regulation of interleukin 1 receptor and Toll-like receptor signaling by MEKK3. Nat Immunol. 2004 Jan;5(1):98-103. Epub 2003 Dec 7. PMID:14661019 doi:http://dx.doi.org/10.1038/ni1014
↑ Bouwmeester T, Bauch A, Ruffner H, Angrand PO, Bergamini G, Croughton K, Cruciat C, Eberhard D, Gagneur J, Ghidelli S, Hopf C, Huhse B, Mangano R, Michon AM, Schirle M, Schlegl J, Schwab M, Stein MA, Bauer A, Casari G, Drewes G, Gavin AC, Jackson DB, Joberty G, Neubauer G, Rick J, Kuster B, Superti-Furga G. A physical and functional map of the human TNF-alpha/NF-kappa B signal transduction pathway. Nat Cell Biol. 2004 Feb;6(2):97-105. Epub 2004 Jan 25. PMID:14743216 doi:http://dx.doi.org/10.1038/ncb1086
↑ Hu Q, Shen W, Huang H, Liu J, Zhang J, Huang X, Wu J, Shi Y. Insight into the binding properties of MEKK3 PB1 to MEK5 PB1 from its solution structure. Biochemistry. 2007 Nov 27;46(47):13478-89. Epub 2007 Nov 7. PMID:17985933 doi:http://dx.doi.org/10.1021/bi701341n

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/2pph"

@@ Line 2: / Line 2: @@
 <StructureSection load='2pph' size='340' side='right' caption='[[2pph]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2pph]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PPH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2PPH FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2pph]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PPH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2PPH FirstGlance]. <br>
-</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MEKK3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
+</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MEKK3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Mitogen-activated_protein_kinase_kinase_kinase Mitogen-activated protein kinase kinase kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.25 2.7.11.25] </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=2pph FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pph OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2pph RCSB], [http://www.ebi.ac.uk/pdbsum/2pph 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=2pph FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pph OCA], [http://pdbe.org/2pph PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2pph RCSB], [http://www.ebi.ac.uk/pdbsum/2pph PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 27: / Line 27: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2pph" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 34: / Line 35: @@
 __TOC__
 </StructureSection>
-[[Category: Homo sapiens]]
+[[Category: Human]]
 [[Category: Mitogen-activated protein kinase kinase kinase]]
 [[Category: Hu, Q]]

2pph

From Proteopedia

Revision as of 01:30, 11 September 2015

solution structure of human MEKK3 PB1 domain

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox