IP Library Granted Patent US 12,496,358
Granted Patent B2
US 12,496,358 · App. 18/045,805 · Granted Dec 16, 2025

Modified nucleosides, nucleotides, and nucleic acids, and uses thereof

Inventors: Jason P. Schrum (Philadelphia, PA); Suhaib Siddiqi (Burlington, MA); Kenechi Ejebe (New York, NY)
Assignee: ModernaTX, Inc.
A61K48/0066C07H19/10C07H21/02C07K16/00C07K16/2887C12N5/0602C12N15/102C12N15/11C12N15/1136C12N15/1138C12N15/67C12P21/00G01N33/559C07K2317/24C12N2310/3341C12N2310/335
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Quick Facts
Patent No.
US 12,496,358
App. No.
18/045,805
Granted
Dec 16, 2025
Kind
B2
Abstract

The present disclosure provides modified nucleosides, nucleotides, and nucleic acids, and methods of using thereof.

Claims (4)

1 . A method of synthesizing a messenger ribonucleic acid (mRNA), comprising the steps of:

a) providing a deoxyribonucleic acid (DNA) that encodes a protein of interest;

b) selecting a nucleotide that disrupts a binding of a major groove binding partner with the RNA, wherein the nucleotide has decreased binding affinity to the major groove binding partner selected from the group consisting of toll-like receptor (TLR) 3, TLR7, TLR8, retinoic acid-inducible gene I (RIG-I), melanoma differentiation-associated gene 5 (MDA5) and laboratory of genetics and physiology 2 (LGP2), and wherein the nucleotide comprises a modification on the major groove face of the nucleobase where an atom of the major groove face of the nucleobase is replaced or substituted with a C 1 -C 6 alkyl group; and

c) contacting the provided DNA and the selected nucleotide with an RNA polymerase, under conditions such that the mRNA is synthesized.

Assignments (6)
SECURITY INTEREST Recorded Nov 19, 2025
From: MODERNATX, INC.
To: ARES CAPITAL CORPORATION, AS AGENT
Reel/Frame 073634/0354 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2023
From: FLAGSHIP VENTURES
To: MODERNA THERAPEUTICS, INC.
Reel/Frame 063705/0558 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2023
From: SIDDIQI, SUHAIB
To: MODERNA THERAPEUTICS, INC.
Reel/Frame 063705/0687 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2023
From: EJEBE, KENECHI
To: MODERNA THERAPEUTICS, INC.
Reel/Frame 063705/0728 →
EMPLOYMENT AGREEMENT Recorded May 19, 2023
From: SCHRUM, JASON P.
To: MODERNA THERAPEUTICS, INC.
Reel/Frame 063706/0703 →
CHANGE OF NAME Recorded May 19, 2023
From: MODERNA THERAPEUTICS, INC.
To: MODERNATX, INC.
Reel/Frame 063709/0143 →
Continuity (8)
Continuation 16047574 · Jul 27, 2018
Continuation 15493829 · Apr 21, 2017
Division 15143364 · Apr 29, 2016
Continuation 13739212 · Jan 11, 2013
Continuation 13481127 · May 25, 2012
Continuation 13251840 · Oct 3, 2011
Provisional Application 61404413 · Oct 1, 2010
Related Publication 20240033379A1 · Feb 1, 2024
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