8d0d

From Proteopedia

(Difference between revisions)

Current revision

Human SARM1 TIR domain bound to an NB-7-ADPR adduct

Structural highlights

8d0d 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.
Method:	X-ray diffraction, Resolution 1.96Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

SARM1_HUMAN Negative regulator of MYD88- and TRIF-dependent toll-like receptor signaling pathway which plays a pivotal role in activating axonal degeneration following injury. Promotes Wallerian degeneration an injury-induced axonal death pathway which involves degeneration of an axon distal to the injury site. Can activate neuronal death in response to stress. Regulates dendritic arborization through the MAPK4-JNK pathway. Involved in innate immune response. Inhibits both TICAM1/TRIF- and MYD88-dependent activation of JUN/AP-1, TRIF-dependent activation of NF-kappa-B and IRF3, and the phosphorylation of MAPK14/p38.^[1] ^[2] ^[3] ^[4]

Publication Abstract from PubMed

Axon degeneration is an early pathological event in many neurological diseases. The identification of the nicotinamide adenine dinucleotide (NAD) hydrolase SARM1 as a central metabolic sensor and axon executioner presents an exciting opportunity to develop novel neuroprotective therapies that can prevent or halt the degenerative process, yet limited progress has been made on advancing efficacious inhibitors. We describe a class of NAD-dependent active-site SARM1 inhibitors that function by intercepting NAD hydrolysis and undergoing covalent conjugation with the reaction product adenosine diphosphate ribose (ADPR). The resulting small-molecule ADPR adducts are highly potent and confer compelling neuroprotection in preclinical models of neurological injury and disease, validating this mode of inhibition as a viable therapeutic strategy. Additionally, we show that the most potent inhibitor of CD38, a related NAD hydrolase, also functions by the same mechanism, further underscoring the broader applicability of this mechanism in developing therapies against this class of enzymes.

Uncompetitive, adduct-forming SARM1 inhibitors are neuroprotective in preclinical models of nerve injury and disease.,Bratkowski M, Burdett TC, Danao J, Wang X, Mathur P, Gu W, Beckstead JA, Talreja S, Yang YS, Danko G, Park JH, Walton M, Brown SP, Tegley CM, Joseph PRB, Reynolds CH, Sambashivan S Neuron. 2022 Sep 7. pii: S0896-6273(22)00749-8. doi:, 10.1016/j.neuron.2022.08.017. PMID:36087583^[5]

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

References

↑ Liberati NT, Fitzgerald KA, Kim DH, Feinbaum R, Golenbock DT, Ausubel FM. Requirement for a conserved Toll/interleukin-1 resistance domain protein in the Caenorhabditis elegans immune response. Proc Natl Acad Sci U S A. 2004 Apr 27;101(17):6593-8. PMID:15123841 doi:http://dx.doi.org/10.1073/pnas.0308625101
↑ Carty M, Goodbody R, Schroder M, Stack J, Moynagh PN, Bowie AG. The human adaptor SARM negatively regulates adaptor protein TRIF-dependent Toll-like receptor signaling. Nat Immunol. 2006 Oct;7(10):1074-81. doi: 10.1038/ni1382. Epub 2006 Sep 10. PMID:16964262 doi:http://dx.doi.org/10.1038/ni1382
↑ O'Neill LA. DisSARMing Toll-like receptor signaling. Nat Immunol. 2006 Oct;7(10):1023-5. doi: 10.1038/ni1006-1023. PMID:16985498 doi:http://dx.doi.org/10.1038/ni1006-1023
↑ Peng J, Yuan Q, Lin B, Panneerselvam P, Wang X, Luan XL, Lim SK, Leung BP, Ho B, Ding JL. SARM inhibits both TRIF- and MyD88-mediated AP-1 activation. Eur J Immunol. 2010 Jun;40(6):1738-47. doi: 10.1002/eji.200940034. PMID:20306472 doi:http://dx.doi.org/10.1002/eji.200940034
↑ Bratkowski M, Burdett TC, Danao J, Wang X, Mathur P, Gu W, Beckstead JA, Talreja S, Yang YS, Danko G, Park JH, Walton M, Brown SP, Tegley CM, Joseph PRB, Reynolds CH, Sambashivan S. Uncompetitive, adduct-forming SARM1 inhibitors are neuroprotective in preclinical models of nerve injury and disease. Neuron. 2022 Sep 7. pii: S0896-6273(22)00749-8. doi:, 10.1016/j.neuron.2022.08.017. PMID:36087583 doi:http://dx.doi.org/10.1016/j.neuron.2022.08.017

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/8d0d"

Categories: Homo sapiens | Large Structures | Bratkowski MA | Mathur P

@@ Line 4: / Line 4: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[8d0d]] is a 2 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=8D0D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8D0D FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=Q0L:[[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]+[(2~{R},3~{S},4~{R})-5-[4-[3-[3-(4-chlorophenyl)propanoylamino]-4-methyl-1~{H}-pyrazol-5-yl]pyridin-1-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methyl+hydrogen+phosphate'>Q0L</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]] 1.96&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=Q0L:[[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]+[(2~{R},3~{S},4~{R})-5-[4-[3-[3-(4-chlorophenyl)propanoylamino]-4-methyl-1~{H}-pyrazol-5-yl]pyridin-1-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methyl+hydrogen+phosphate'>Q0L</scene></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=8d0d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8d0d OCA], [https://pdbe.org/8d0d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8d0d RCSB], [https://www.ebi.ac.uk/pdbsum/8d0d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8d0d ProSAT]</span></td></tr>
 </table>

8d0d

From Proteopedia

Current revision

Human SARM1 TIR domain bound to an NB-7-ADPR adduct

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

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