Cyclic ADP ribose isomers: Production, chemical structures, and immune signaling

Author:

Manik Mohammad K.12ORCID,Shi Yun3ORCID,Li Sulin12ORCID,Zaydman Mark A.4ORCID,Damaraju Neha56,Eastman Samuel7ORCID,Smith Thomas G.8ORCID,Gu Weixi12ORCID,Masic Veronika3,Mosaiab Tamim3ORCID,Weagley James S.9ORCID,Hancock Steven J.12,Vasquez Eduardo3ORCID,Hartley-Tassell Lauren3ORCID,Kargios Nestoras10ORCID,Maruta Natsumi12ORCID,Lim Bryan Y. J.12ORCID,Burdett Hayden12ORCID,Landsberg Michael J.12ORCID,Schembri Mark A.12ORCID,Prokes Ivan11ORCID,Song Lijiang11ORCID,Grant Murray10ORCID,DiAntonio Aaron45ORCID,Nanson Jeffrey D.12ORCID,Guo Ming12,Milbrandt Jeffrey4ORCID,Ve Thomas3ORCID,Kobe Bostjan1213ORCID

Affiliation:

1. School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD 4072, Australia.

2. Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD 4072, Australia.

3. Institute for Glycomics, Griffith University, Southport, QLD 4222, Australia.

4. Department of Pathology and Immunology, Washington University School of Medicine in St. Louis, St. Louis, MO 63100, USA.

5. Department of Developmental Biology, Washington University School of Medicine in St. Louis, St. Louis, MO 63100, USA.

6. Department of Genetics, Washington University School of Medicine in St. Louis, St. Louis, MO 63100, USA.

7. Department of Plant Pathology, University of Nebraska–Lincoln, Lincoln, NE 68583, USA.

8. Department of Chemistry, University of Nebraska–Lincoln, Lincoln, NE 68588, USA.

9. Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA.

10. School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK.

11. Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK.

12. Department of Agronomy and Horticulture, University of Nebraska–Lincoln, Lincoln, NE 68583, USA.

13. The University of Queensland, Institute for Molecular Bioscience, Brisbane, QLD 4072, Australia.

Abstract

Cyclic adenosine diphosphate (ADP)–ribose (cADPR) isomers are signaling molecules produced by bacterial and plant Toll/interleukin-1 receptor (TIR) domains via nicotinamide adenine dinucleotide (oxidized form) (NAD + ) hydrolysis. We show that v-cADPR (2′cADPR) and v2-cADPR (3′cADPR) isomers are cyclized by O-glycosidic bond formation between the ribose moieties in ADPR. Structures of 2′cADPR-producing TIR domains reveal conformational changes that lead to an active assembly that resembles those of Toll-like receptor adaptor TIR domains. Mutagenesis reveals a conserved tryptophan that is essential for cyclization. We show that 3′cADPR is an activator of ThsA effector proteins from the bacterial antiphage defense system termed Thoeris and a suppressor of plant immunity when produced by the effector HopAM1. Collectively, our results reveal the molecular basis of cADPR isomer production and establish 3′cADPR in bacteria as an antiviral and plant immunity–suppressing signaling molecule.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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