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5x4o

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Crystal structure of the BCL6 BTB domain in complex with Compound 5

Structural highlights

5x4o 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 2.05Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

BCL6_HUMAN Note=Chromosomal aberrations involving BCL6 may be a cause of B-cell non-Hodgkin lymphoma. Translocation t(3;14)(q27;q32); translocation t(3;22)(q27;q11) with immunoglobulin gene regions. Note=A chromosomal aberration involving BCL6 may be a cause of a form of B-cell leukemia. Translocation t(3;11)(q27;q23) with POU2AF1/OBF1. Note=A chromosomal aberration involving BCL6 may be a cause of lymphoma. Translocation t(3;4)(q27;p11) with ARHH/TTF.

Function

BCL6_HUMAN Transcriptional repressor which is required for germinal center formation and antibody affinity maturation. Probably plays an important role in lymphomagenesis.^[1] ^[2]

Publication Abstract from PubMed

B-cell lymphoma 6 (BCL6) is a transcriptional factor that expresses in lymphocytes and regulates the differentiation and proliferation of lymphocytes. Therefore, BCL6 is a therapeutic target for autoimmune diseases and cancer treatment. This report presents the discovery of BCL6-corepressor interaction inhibitors by using a biophysics-driven fragment-based approach. Using the surface plasmon resonance (SPR)-based fragment screening, we successfully identified fragment 1 (SPR KD = 1200 muM, ligand efficiency (LE) = 0.28), a competitive binder to the natural ligand BCoR peptide. Moreover, we elaborated 1 into the more potent compound 7 (SPR KD = 0.078 muM, LE = 0.37, cell-free protein-protein interaction (PPI) IC50 = 0.48 muM (ELISA), cellular PPI IC50 = 8.6 muM (M2H)) by a structure-based design and structural integration with a second high-throughput screening hit.

Discovery of a B-Cell Lymphoma 6 Protein-Protein Interaction Inhibitor by a Biophysics-Driven Fragment-Based Approach.,Kamada Y, Sakai N, Sogabe S, Ida K, Oki H, Sakamoto K, Lane W, Snell G, Iida M, Imaeda Y, Sakamoto J, Matsui J J Med Chem. 2017 May 11. doi: 10.1021/acs.jmedchem.7b00313. PMID:28471657^[3]

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

References

↑ Niu H, Ye BH, Dalla-Favera R. Antigen receptor signaling induces MAP kinase-mediated phosphorylation and degradation of the BCL-6 transcription factor. Genes Dev. 1998 Jul 1;12(13):1953-61. PMID:9649500
↑ Ghetu AF, Corcoran CM, Cerchietti L, Bardwell VJ, Melnick A, Prive GG. Structure of a BCOR corepressor peptide in complex with the BCL6 BTB domain dimer. Mol Cell. 2008 Feb 15;29(3):384-91. PMID:18280243 doi:10.1016/j.molcel.2007.12.026
↑ Kamada Y, Sakai N, Sogabe S, Ida K, Oki H, Sakamoto K, Lane W, Snell G, Iida M, Imaeda Y, Sakamoto J, Matsui J. Discovery of a B-Cell Lymphoma 6 Protein-Protein Interaction Inhibitor by a Biophysics-Driven Fragment-Based Approach. J Med Chem. 2017 May 11. doi: 10.1021/acs.jmedchem.7b00313. PMID:28471657 doi:http://dx.doi.org/10.1021/acs.jmedchem.7b00313

1 Structural highlights
2 Disease
3 Function
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/5x4o"

@@ Line 1: / Line 1: @@
 ==Crystal structure of the BCL6 BTB domain in complex with Compound 5==
-<StructureSection load='5x4o' size='340' side='right' caption='[[5x4o]], [[Resolution|resolution]] 2.05&Aring;' scene=''>
+<StructureSection load='5x4o' size='340' side='right'caption='[[5x4o]], [[Resolution|resolution]] 2.05&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5x4o]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5X4O OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5X4O FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5x4o]] 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=5X4O OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5X4O FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=YAM:N-METHYL-N-{3-[({2-[(2-OXO-2,3-DIHYDRO-1H-INDOL-5-YL)AMINO]-5-(TRIFLUOROMETHYL)PYRIMIDIN-4-YL}AMINO)METHYL]PYRIDIN-2-YL}METHANESULFONAMIDE'>YAM</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]] 2.05&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5x4q|5x4q]], [[5x4p|5x4p]], [[5x4m|5x4m]], [[5x4n|5x4n]]</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=YAM:N-METHYL-N-{3-[({2-[(2-OXO-2,3-DIHYDRO-1H-INDOL-5-YL)AMINO]-5-(TRIFLUOROMETHYL)PYRIMIDIN-4-YL}AMINO)METHYL]PYRIDIN-2-YL}METHANESULFONAMIDE'>YAM</scene></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=5x4o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5x4o OCA], [http://pdbe.org/5x4o PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5x4o RCSB], [http://www.ebi.ac.uk/pdbsum/5x4o PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5x4o ProSAT]</span></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=5x4o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5x4o OCA], [https://pdbe.org/5x4o PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5x4o RCSB], [https://www.ebi.ac.uk/pdbsum/5x4o PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5x4o ProSAT]</span></td></tr>
 </table>
 == Disease ==
-[[http://www.uniprot.org/uniprot/BCL6_HUMAN BCL6_HUMAN]] Note=Chromosomal aberrations involving BCL6 may be a cause of B-cell non-Hodgkin lymphoma. Translocation t(3;14)(q27;q32); translocation t(3;22)(q27;q11) with immunoglobulin gene regions.  Note=A chromosomal aberration involving BCL6 may be a cause of a form of B-cell leukemia. Translocation t(3;11)(q27;q23) with POU2AF1/OBF1.  Note=A chromosomal aberration involving BCL6 may be a cause of lymphoma. Translocation t(3;4)(q27;p11) with ARHH/TTF.
+[https://www.uniprot.org/uniprot/BCL6_HUMAN BCL6_HUMAN] Note=Chromosomal aberrations involving BCL6 may be a cause of B-cell non-Hodgkin lymphoma. Translocation t(3;14)(q27;q32); translocation t(3;22)(q27;q11) with immunoglobulin gene regions.  Note=A chromosomal aberration involving BCL6 may be a cause of a form of B-cell leukemia. Translocation t(3;11)(q27;q23) with POU2AF1/OBF1.  Note=A chromosomal aberration involving BCL6 may be a cause of lymphoma. Translocation t(3;4)(q27;p11) with ARHH/TTF.
 == Function ==
-[[http://www.uniprot.org/uniprot/BCL6_HUMAN BCL6_HUMAN]] Transcriptional repressor which is required for germinal center formation and antibody affinity maturation. Probably plays an important role in lymphomagenesis.<ref>PMID:9649500</ref> <ref>PMID:18280243</ref>
+[https://www.uniprot.org/uniprot/BCL6_HUMAN BCL6_HUMAN] Transcriptional repressor which is required for germinal center formation and antibody affinity maturation. Probably plays an important role in lymphomagenesis.<ref>PMID:9649500</ref> <ref>PMID:18280243</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 21: / Line 21: @@
 </div>
 <div class="pdbe-citations 5x4o" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[B-cell lymphoma proteins 3D structures|B-cell lymphoma proteins 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Ida, K]]
+[[Category: Homo sapiens]]
-[[Category: Lane, W]]
+[[Category: Large Structures]]
-[[Category: Snell, G]]
+[[Category: Ida K]]
-[[Category: Sogabe, S]]
+[[Category: Lane W]]
-[[Category: Transcription repressor]]
+[[Category: Snell G]]
-[[Category: Transcription-inhibitor complex]]
+[[Category: Sogabe S]]

5x4o

From Proteopedia

Current revision

Crystal structure of the BCL6 BTB domain in complex with Compound 5

Structural highlights

Disease

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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