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.

5ntk

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 12:12, 26 August 2020

Structural states of RORgt: X-ray elucidation of molecular mechanisms and binding interactions for natural and synthetic compounds

Structural highlights

5ntk is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[RORG_HUMAN] Possible nuclear receptor for hydroxycholesterols, the binding of which strongly promotes coactivators recruitment. Essential for thymopoiesis and the development of several secondary lymphoid tissues, including lymph nodes. Involved in lineage specification of uncommitted CD4(+) T-helper cells into Th17 cells. Regulate the expression of several components of the circadian clock.

Publication Abstract from PubMed

The T-cell-specific retinoic acid receptor (RAR)-related orphan receptor-gamma (RORgammat) is a key transcription factor for the production of pro-inflammatory Th17 cytokines, which are implicated in the pathogenesis of autoimmune diseases. Over the years, several structurally diverse RORgammat inverse agonists have been reported, but combining high potency and good physicochemical properties has remained a challenging task. We recently reported a new series of inverse agonists based on an imidazopyridine core with good physicochemical properties and excellent selectivity. Herein we report eight new X-ray crystal structures for different classes of natural and synthetic compounds, including examples selected from the patent literature. Analysis of their respective binding modes revealed insight into the molecular mechanisms that lead to agonism, antagonism, or inverse agonism. We report new molecular mechanisms for RORgammat agonism and propose a separation of the inverse agonists into two classes: those that act via steric clash and those that act via other mechanisms (for the latter, co-crystallization with a co-activator peptide and helix 12 in the agonist position is still possible). For the non-steric clash inverse agonists, we propose a new mechanism ("water trapping") which can be combined with other mechanisms (e.g., close contacts with H479). In addition, we compare the interactions made for selected compounds in the "back pocket" near S404 and in the "sulfate pocket" near R364 and R367. Taken together, these new mechanistic insights should prove useful for the design and optimization of further RORgammat modulators.

Structural States of RORgammat: X-ray Elucidation of Molecular Mechanisms and Binding Interactions for Natural and Synthetic Compounds.,Kallen J, Izaac A, Be C, Arista L, Orain D, Kaupmann K, Guntermann C, Hoegenauer K, Hintermann S ChemMedChem. 2017 Jul 6;12(13):1014-1021. doi: 10.1002/cmdc.201700278. Epub 2017 , Jun 20. PMID:28590087^[1]

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

References

↑ Kallen J, Izaac A, Be C, Arista L, Orain D, Kaupmann K, Guntermann C, Hoegenauer K, Hintermann S. Structural States of RORgammat: X-ray Elucidation of Molecular Mechanisms and Binding Interactions for Natural and Synthetic Compounds. ChemMedChem. 2017 Jul 6;12(13):1014-1021. doi: 10.1002/cmdc.201700278. Epub 2017 , Jun 20. PMID:28590087 doi:http://dx.doi.org/10.1002/cmdc.201700278

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5ntk"

@@ Line 1: / Line 1: @@
 ==Structural states of RORgt: X-ray elucidation of molecular mechanisms and binding interactions for natural and synthetic compounds==
-<StructureSection load='5ntk' size='340' side='right' caption='[[5ntk]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
+<StructureSection load='5ntk' size='340' side='right'caption='[[5ntk]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5ntk]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5NTK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5NTK FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5ntk]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5NTK OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5NTK FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=99N:[(3~{S},8~{S},9~{S},10~{R},13~{R},14~{S},17~{R})-10,13-dimethyl-17-[(2~{R})-5-[[4-(2-morpholin-4-ylethoxy)phenyl]methylamino]-5-oxidanylidene-pentan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1~{H}-cyclopenta[a]phenanthren-3-yl]+hydrogen+sulfate'>99N</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=99N:[(3~{S},8~{S},9~{S},10~{R},13~{R},14~{S},17~{R})-10,13-dimethyl-17-[(2~{R})-5-[[4-(2-morpholin-4-ylethoxy)phenyl]methylamino]-5-oxidanylidene-pentan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1~{H}-cyclopenta[a]phenanthren-3-yl]+hydrogen+sulfate'>99N</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=5ntk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ntk OCA], [http://pdbe.org/5ntk PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ntk RCSB], [http://www.ebi.ac.uk/pdbsum/5ntk PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ntk ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5ntk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ntk OCA], [http://pdbe.org/5ntk PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ntk RCSB], [http://www.ebi.ac.uk/pdbsum/5ntk PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ntk ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 22: / Line 22: @@
 __TOC__
 </StructureSection>
+[[Category: Large Structures]]
 [[Category: Kallen, J]]
 [[Category: Inverse agonist]]

5ntk

From Proteopedia

Revision as of 12:12, 26 August 2020

Structural states of RORgt: X-ray elucidation of molecular mechanisms and binding interactions for natural and synthetic compounds

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox