N1-Methylpseudouridine
N1-Methylpseudouridine (abbreviated m1Ψ) is a natural archaeal tRNA component[1] as well as a synthetic pyrimidine nucleoside used in biochemistry and molecular biology for in vitro transcription and is found in the SARS-CoV-2 mRNA vaccines tozinameran (Pfizer–BioNTech) and elasomeran (Moderna).[2]: 1
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IUPAC name
5-[(2S,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1-methylpyrimidine-2,4-dione | |
Other names
1-Methylpseudouridine; m1Ψ | |
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ChEBI | |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C10H14N2O6 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references |
Properties
N1-Methylpseudouridine is the methylated derivative of pseudouridine. It is used in in vitro transcription and for the production of RNA vaccines.[3][4] In vertebrates, it stimulates significantly less activation of the innate immune response compared to uridine,[5] while the translation is stronger.[6][7] In protein biosynthesis, it is read like uridine and enables comparatively high protein yields.[7][8] The nucleoside itself can be made by chemical methylation of pseudouridine.[9]
While pseudouridine can wobble-pair with bases other than A,[10] potentially leading to mistranslated proteins, it is unclear whether this happens with m1Ψ.[11][2]: 4
History
In 2016, a protocol for large-scale synthesis of the nucleoside triphosphate from the ribonucleoside was published.[12]
In 2017–2018 it was tested in vaccines against Zika,[13][14][15] HIV-1,[15] influenza,[15] and Ebola.[16][2]: 5
References
- Wurm JP, Griese M, Bahr U, Held M, Heckel A, Karas M, et al. (March 2012). "Identification of the enzyme responsible for N1-methylation of pseudouridine 54 in archaeal tRNAs". RNA. 18 (3): 412–420. doi:10.1261/rna.028498.111. PMC 3285930. PMID 22274954.
In contrast, in most archaea this position is occupied by another hypermodified nucleotide: the isosteric N1-methylated pseudouridine
- Morais P, Adachi H, Yu YT (2021-11-04). "The Critical Contribution of Pseudouridine to mRNA COVID-19 Vaccines". Frontiers in Cell and Developmental Biology. 9: 789427. doi:10.3389/fcell.2021.789427. PMC 8600071. PMID 34805188.
- Knudson CJ, Alves-Peixoto P, Muramatsu H, Stotesbury C, Tang L, Lin PJ, et al. (September 2021). "Lipid-nanoparticle-encapsulated mRNA vaccines induce protective memory CD8 T cells against a lethal viral infection". Molecular Therapy. 29 (9): 2769–2781. doi:10.1016/j.ymthe.2021.05.011. PMC 8417516. PMID 33992803.
- Krienke C, Kolb L, Diken E, Streuber M, Kirchhoff S, Bukur T, et al. (January 2021). "A noninflammatory mRNA vaccine for treatment of experimental autoimmune encephalomyelitis". Science. 371 (6525): 145–153. Bibcode:2021Sci...371..145K. doi:10.1126/science.aay3638. PMID 33414215. S2CID 231138578.
- Nelson J, Sorensen EW, Mintri S, Rabideau AE, Zheng W, Besin G, et al. (June 2020). "Impact of mRNA chemistry and manufacturing process on innate immune activation". Science Advances. 6 (26): eaaz6893. Bibcode:2020SciA....6.6893N. doi:10.1126/sciadv.aaz6893. PMC 7314518. PMID 32637598.
- Andries O, Mc Cafferty S, De Smedt SC, Weiss R, Sanders NN, Kitada T (November 2015). "N(1)-methylpseudouridine-incorporated mRNA outperforms pseudouridine-incorporated mRNA by providing enhanced protein expression and reduced immunogenicity in mammalian cell lines and mice". Journal of Controlled Release. 217: 337–344. doi:10.1016/j.jconrel.2015.08.051. hdl:1854/LU-6993270. PMID 26342664.
- Svitkin YV, Cheng YM, Chakraborty T, Presnyak V, John M, Sonenberg N (June 2017). "N1-methyl-pseudouridine in mRNA enhances translation through eIF2α-dependent and independent mechanisms by increasing ribosome density". Nucleic Acids Research. 45 (10): 6023–6036. doi:10.1093/nar/gkx135. PMC 5449617. PMID 28334758.
- Parr CJ, Wada S, Kotake K, Kameda S, Matsuura S, Sakashita S, et al. (April 2020). "N 1-Methylpseudouridine substitution enhances the performance of synthetic mRNA switches in cells". Nucleic Acids Research. 48 (6): e35. doi:10.1093/nar/gkaa070. PMC 7102939. PMID 32090264.
- Earl RA, Townsend LB (June 1977). "A chemical synthesis of the nucleoside 1-methylpseudouridine". Journal of Heterocyclic Chemistry. 14 (4): 699–700. doi:10.1002/jhet.5570140437.
- Kierzek E, Malgowska M, Lisowiec J, Turner DH, Gdaniec Z, Kierzek R (March 2014). "The contribution of pseudouridine to stabilities and structure of RNAs". Nucleic Acids Research. 42 (5): 3492–3501. doi:10.1093/nar/gkt1330. PMC 3950712. PMID 24369424.
- Xia X (July 2021). "Detailed Dissection and Critical Evaluation of the Pfizer/BioNTech and Moderna mRNA Vaccines". Vaccines. 9 (7): 734. doi:10.3390/vaccines9070734. PMC 8310186. PMID 34358150.
The replacement of uridine by N1-methylpseudourinine (Ψ) complicates some of these optimization processes because Ψ is more versatile in wobbling than U. … all U nucleotides were replaced by N1-methylpseudouridine (Ψ). However, Ψ wobbles more in base-pairing than U and can pair not only with A and G, but also, to a lesser extent, with C and U. … produce a longer protein of unknown fate with potentially deleterious effects.
- Shanmugasundaram M, Senthilvelan A, Kore AR (December 2016). "Gram-Scale Chemical Synthesis of Base-Modified Ribonucleoside-5'-O-Triphosphates". Current Protocols in Nucleic Acid Chemistry. 67: 13.15.1–13.15.10. doi:10.1002/cpnc.20. PMID 27911496. S2CID 5143935.
- Pardi N, Hogan MJ, Pelc RS, Muramatsu H, Andersen H, DeMaso CR, et al. (March 2017). "Zika virus protection by a single low-dose nucleoside-modified mRNA vaccination". Nature. 543 (7644): 248–251. Bibcode:2017Natur.543..248P. doi:10.1038/nature21428. PMC 5344708. PMID 28151488.
we designed a potent anti-ZIKV vaccine … containing the modified nucleoside 1-methylpseudouridine (m1Ψ)
- Richner JM, Himansu S, Dowd KA, Butler SL, Salazar V, Fox JM, et al. (March 2017). "Modified mRNA Vaccines Protect against Zika Virus Infection". Cell. 168 (6): 1114–1125.e10. doi:10.1016/j.cell.2017.02.017. PMC 5388441. PMID 28222903.
The mRNA was synthesized … where the UTP was substituted with 1-methylpseudoUTP
- Pardi N, Hogan MJ, Naradikian MS, Parkhouse K, Cain DW, Jones L, et al. (June 2018). "Nucleoside-modified mRNA vaccines induce potent T follicular helper and germinal center B cell responses". The Journal of Experimental Medicine. 215 (6): 1571–1588. doi:10.1084/jem.20171450. PMC 5987916. PMID 29739835.
In this study, we characterize the immunogenicity of three vaccines consisting of m1Ψ-modified, FPLC-purified mRNA-LNPs encoding HIV-1 envelope (Env), ZIKV prM-E, and influenza virus hemagglutinin (HA)
- Meyer M, Huang E, Yuzhakov O, Ramanathan P, Ciaramella G, Bukreyev A (January 2018). "Modified mRNA-Based Vaccines Elicit Robust Immune Responses and Protect Guinea Pigs From Ebola Virus Disease". The Journal of Infectious Diseases. 217 (3): 451–455. doi:10.1093/infdis/jix592. PMC 5853918. PMID 29281112.
Two mRNA vaccines were synthesized … where the UTP were substituted with 1-methylpseudo UTP