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3io9

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Revision as of 08:06, 25 December 2014

BimL12Y in complex with Mcl-1

Structural highlights

3io9 is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	2nl9, 3io8
Gene:	MCL1, BCL2L3 (Homo sapiens)
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[MCL1_MOUSE] Involved in the regulation of apoptosis versus cell survival, and in the maintenance of viability but not of proliferation. Mediates its effects by interactions with a number of other regulators of apoptosis. [B2L11_HUMAN] Induces apoptosis and anoikis. Isoform BimL is more potent than isoform BimEL. Isoform Bim-alpha1, isoform Bim-alpha2 and isoform Bim-alpha3 induce apoptosis, although less potent than isoform BimEL, isoform BimL and isoform BimS. Isoform Bim-gamma induces apoptosis. Isoform Bim-alpha3 induces apoptosis possibly through a caspase-mediated pathway. Isoform BimAC and isoform BimABC lack the ability to induce apoptosis.^[1] ^[2] ^[3] ^[4] ^[5] ^[6]

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

Antagonists of anti-apoptotic Bcl-2 family members hold promise as cancer therapeutics. Apoptosis is triggered when a peptide containing a BH3 motif or a small molecule BH3 peptidomimetic, such as ABT 737, binds to the relevant Bcl-2 family members. ABT-737 is an antagonist of Bcl-2, Bcl-x(L), and Bcl-w but not of Mcl-1. Here we describe new structures of mutant BH3 peptides bound to Bcl-x(L) and Mcl-1. These structures suggested a rationale for the failure of ABT-737 to bind Mcl-1, but a designed variant of ABT-737 failed to acquire binding affinity for Mcl-1. Rather, it was selective for Bcl-x(L), a result attributable in part to significant backbone refolding and movements of helical segments in its ligand binding site. To date there are few reported crystal structures of organic ligands in complex with their pro-survival protein targets. Our structure of this new organic ligand provided insights into the structural transitions that occur within the BH3 binding groove, highlighting significant differences in the structural properties of members of the Bcl-2 pro-survival protein family. Such differences are likely to influence and be important in the quest for compounds capable of selectively antagonizing the different family members.

Conformational changes in Bcl-2 pro-survival proteins determine their capacity to bind ligands.,Lee EF, Czabotar PE, Yang H, Sleebs BE, Lessene G, Colman PM, Smith BJ, Fairlie WD J Biol Chem. 2009 Oct 30;284(44):30508-17. Epub 2009 Sep 2. PMID:19726685^[7]

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

References

↑ O'Connor L, Strasser A, O'Reilly LA, Hausmann G, Adams JM, Cory S, Huang DC. Bim: a novel member of the Bcl-2 family that promotes apoptosis. EMBO J. 1998 Jan 15;17(2):384-95. PMID:9430630 doi:http://dx.doi.org/10.1093/emboj/17.2.384
↑ U M, Miyashita T, Shikama Y, Tadokoro K, Yamada M. Molecular cloning and characterization of six novel isoforms of human Bim, a member of the proapoptotic Bcl-2 family. FEBS Lett. 2001 Nov 30;509(1):135-41. PMID:11734221
↑ Liu JW, Chandra D, Tang SH, Chopra D, Tang DG. Identification and characterization of Bimgamma, a novel proapoptotic BH3-only splice variant of Bim. Cancer Res. 2002 May 15;62(10):2976-81. PMID:12019181
↑ Marani M, Tenev T, Hancock D, Downward J, Lemoine NR. Identification of novel isoforms of the BH3 domain protein Bim which directly activate Bax to trigger apoptosis. Mol Cell Biol. 2002 Jun;22(11):3577-89. PMID:11997495
↑ Chen JZ, Ji CN, Gu SH, Li JX, Zhao EP, Huang Y, Huang L, Ying K, Xie Y, Mao YM. Over-expression of Bim alpha3, a novel isoform of human Bim, result in cell apoptosis. Int J Biochem Cell Biol. 2004 Aug;36(8):1554-61. PMID:15147734 doi:http://dx.doi.org/10.1016/j.biocel.2003.12.015
↑ Fukazawa H, Noguchi K, Masumi A, Murakami Y, Uehara Y. BimEL is an important determinant for induction of anoikis sensitivity by mitogen-activated protein/extracellular signal-regulated kinase kinase inhibitors. Mol Cancer Ther. 2004 Oct;3(10):1281-8. PMID:15486195
↑ Lee EF, Czabotar PE, Yang H, Sleebs BE, Lessene G, Colman PM, Smith BJ, Fairlie WD. Conformational changes in Bcl-2 pro-survival proteins determine their capacity to bind ligands. J Biol Chem. 2009 Oct 30;284(44):30508-17. Epub 2009 Sep 2. PMID:19726685 doi:10.1074/jbc.M109.040725

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/3io9"

@@ Line 3: / Line 3: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[3io9]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3IO9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3IO9 FirstGlance]. <br>
-</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
-<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2nl9|2nl9]], [[3io8|3io8]]</td></tr>
+<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2nl9|2nl9]], [[3io8|3io8]]</td></tr>
-<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MCL1, BCL2L3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MCL1, BCL2L3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
-<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3io9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3io9 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3io9 RCSB], [http://www.ebi.ac.uk/pdbsum/3io9 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=3io9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3io9 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3io9 RCSB], [http://www.ebi.ac.uk/pdbsum/3io9 PDBsum]</span></td></tr>
-<table>
+</table>
+== Function ==
+[[http://www.uniprot.org/uniprot/MCL1_MOUSE MCL1_MOUSE]] Involved in the regulation of apoptosis versus cell survival, and in the maintenance of viability but not of proliferation. Mediates its effects by interactions with a number of other regulators of apoptosis. [[http://www.uniprot.org/uniprot/B2L11_HUMAN B2L11_HUMAN]] Induces apoptosis and anoikis. Isoform BimL is more potent than isoform BimEL. Isoform Bim-alpha1, isoform Bim-alpha2 and isoform Bim-alpha3 induce apoptosis, although less potent than isoform BimEL, isoform BimL and isoform BimS. Isoform Bim-gamma induces apoptosis. Isoform Bim-alpha3 induces apoptosis possibly through a caspase-mediated pathway. Isoform BimAC and isoform BimABC lack the ability to induce apoptosis.<ref>PMID:9430630</ref> <ref>PMID:11734221</ref> <ref>PMID:12019181</ref> <ref>PMID:11997495</ref> <ref>PMID:15147734</ref> <ref>PMID:15486195</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 34: / Line 36: @@
 </StructureSection>
 [[Category: Homo sapiens]]
-[[Category: Colman, P M.]]
+[[Category: Colman, P M]]
-[[Category: Czabotar, P E.]]
+[[Category: Czabotar, P E]]
-[[Category: Fairlie, W D.]]
+[[Category: Fairlie, W D]]
-[[Category: Lee, E F.]]
+[[Category: Lee, E F]]
-[[Category: Lessene, G.]]
+[[Category: Lessene, G]]
-[[Category: Sleebs, B E.]]
+[[Category: Sleebs, B E]]
-[[Category: Smith, B J.]]
+[[Category: Smith, B J]]
-[[Category: Yang, H.]]
+[[Category: Yang, H]]
 [[Category: Apoptosis]]
 [[Category: Developmental protein]]

3io9

From Proteopedia

Revision as of 08:06, 25 December 2014

BimL12Y in complex with Mcl-1

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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