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3d7v

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Revision as of 21:47, 15 November 2017

Crystal structure of Mcl-1 in complex with an Mcl-1 selective BH3 ligand

Structural highlights

3d7v is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	2nl9, 2nla, 1wsx
Gene:	MCL1 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

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

Like Bcl-2, Mcl-1 is an important survival factor for many cancers, its expression contributing to chemoresistance and disease relapse. However, unlike other prosurvival Bcl-2-like proteins, Mcl-1 stability is acutely regulated. For example, the Bcl-2 homology 3 (BH3)-only protein Noxa, which preferentially binds to Mcl-1, also targets it for proteasomal degradation. In this paper, we describe the discovery and characterization of a novel BH3-like ligand derived from Bim, Bim(S)2A, which is highly selective for Mcl-1. Unlike Noxa, Bim(S)2A is unable to trigger Mcl-1 degradation, yet, like Noxa, Bim(S)2A promotes cell killing only when Bcl-x(L) is absent or neutralized. Furthermore, killing by endogenous Bim is not associated with Mcl-1 degradation. Thus, functional inactivation of Mcl-1 does not always require its elimination. Rather, it can be efficiently antagonized by a BH3-like ligand tightly engaging its binding groove, which is confirmed here with a structural study. Our data have important implications for the discovery of compounds that might kill cells whose survival depends on Mcl-1.

A novel BH3 ligand that selectively targets Mcl-1 reveals that apoptosis can proceed without Mcl-1 degradation.,Lee EF, Czabotar PE, van Delft MF, Michalak EM, Boyle MJ, Willis SN, Puthalakath H, Bouillet P, Colman PM, Huang DC, Fairlie WD J Cell Biol. 2008 Jan 28;180(2):341-55. Epub 2008 Jan 21. PMID:18209102^[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, van Delft MF, Michalak EM, Boyle MJ, Willis SN, Puthalakath H, Bouillet P, Colman PM, Huang DC, Fairlie WD. A novel BH3 ligand that selectively targets Mcl-1 reveals that apoptosis can proceed without Mcl-1 degradation. J Cell Biol. 2008 Jan 28;180(2):341-55. Epub 2008 Jan 21. PMID:18209102 doi:10.1083/jcb.200708096

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/3d7v"

@@ Line 1: / Line 1: @@
 ==Crystal structure of Mcl-1 in complex with an Mcl-1 selective BH3 ligand==
 <StructureSection load='3d7v' size='340' side='right' caption='[[3d7v]], [[Resolution|resolution]] 2.03&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2nl9|2nl9]], [[2nla|2nla]], [[1wsx|1wsx]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MCL1 ([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=3d7v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3d7v OCA], [http://pdbe.org/3d7v PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3d7v RCSB], [http://www.ebi.ac.uk/pdbsum/3d7v 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=3d7v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3d7v OCA], [http://pdbe.org/3d7v PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3d7v RCSB], [http://www.ebi.ac.uk/pdbsum/3d7v PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3d7v ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 29: / Line 30: @@
 </div>
 <div class="pdbe-citations 3d7v" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[Bcl-2|Bcl-2]]
 == References ==
 <references/>
@@ Line 41: / Line 39: @@
 [[Category: Fairlie, W D]]
 [[Category: Lee, E F]]
+[[Category: Alternative splicing]]
 [[Category: Amphipathic helix]]
 [[Category: Apoptosis]]
+[[Category: Cytoplasm]]
 [[Category: Developmental protein]]
 [[Category: Differentiation]]
@@ Line 50: / Line 50: @@
 [[Category: Nucleus]]
 [[Category: Phosphoprotein]]
+[[Category: Polymorphism]]
 [[Category: Transmembrane]]
+[[Category: Ubl conjugation]]

3d7v

From Proteopedia

Revision as of 21:47, 15 November 2017

Crystal structure of Mcl-1 in complex with an Mcl-1 selective BH3 ligand

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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