Abstract: Provided herein are oligonucleotide probes for detecting 2019 novel coronavirus (2019-nCoV). The probes are modified at their 5? ends with a fluorophore (e.g., fluorescein), and are also modified (e.g., at their 3? ends) with a moiety capable of quenching fluorescence from the fluorophore. The moiety is based on the IQ-4 or IQ-2 quencher. Also provided are kits including one or more of such oligonucleotide probes, and methods of detecting 2019-nCoV and/or diagnosing COVID-19 using the oligonucleotide probes and kits described herein.

Abstract: The present invention relates to novel process of reverse 5??3? directed synthesis of RNA oligomers in the range of about 100-mer to about 200-mer has been developed and disclosed. Using that method demonstrated high quality RNA synthesis with coupling efficiency approaching 99%.

Abstract: This invention relates to novel method of synthesis of RNA utilizing N-2-acetyl protected guanine as nucleoside base, nucleosides, succinates, phosphoramidites, corresponding solid supports that are suitable for oligo deoxy nucleosides and RNA oligonucleotide synthesis. Our discovery using N-acetyl protected guanine as nucleoside base protecting group, which is significantly faster base labile protecting group, yet significantly more stable than commonly utilized-2-isobutyryl guanosine is a novel approach to obtain highest purity oligonucleotides. This approach is designed to lead to very high purity and very clean oligonucleotide, after efficient removal of the protecting groups, including acetyl group from guanine and to produce high purity therapeutic grade DNA oligonucleotides, RNA oligonucleotides, diagnostic DNA, diagnostic RNA for microarray platform.

Abstract: The present invention is directed to n-alkylated synthetic nucleosides of high regiospecific purity and oligonucleotides that can be utilized for studies on reversal of cytotoxic and mutagenic DNA damage, and as diagnostic tools.

Abstract: The present invention relates to novel phosphoramidites, A-n-bz, C-n-bz, C-n-ac, G-n-ac and U are produced with an HPLC purity of greater than 98% and 31P NMR purity greater than 99%. A novel process of reverse 5??3? directed synthesis of RNA oligomers has been developed and disclosed. Using that method demonstrated high quality RNA synthesis with coupling efficiency approaching 99%.

Abstract: The thiol modified oligonucleotides have vast number of applications in the field of nucleic acid chemistry. The conjugates generated by mono thiol groups are unstable at higher temperature, in high salt concentration buffers and in presence other thiols. There is strong need to develop a novel thiol modifier probes that can generate multiple thiol groups. Described herein are efficient processes and compounds, dithiolane phosphoramidites derivative and dithiolane succinyl supports. The advantage of our cyclic disulfide thiol modifier is multifold a) each incorporation introduces two thiol groups; b) it can be introduced at any desired site of oligonucleotides; c) The symmetrical branching nature of the spacer in the linker arm of dithiolane allows for clean oligo synthesis, where cleavage of the linker arm and thereby of loss of oligo chain is prevented.

Abstract: This invention relates to synthesis of novel -N-FMOC protected nucleosides, succinates, phosphoramidites, corresponding solid supports that are suitable for oligo deoxy nucleosides and RNA oligonucleotide synthesis. Our discovery using N-FMOC as nucleoside base protecting group, which is highly base labile protecting group is a novel approach to obtain highest purity oligonucleotides. This approach is designed to lead to very high purity and very clean oligonucleotide, after efficient removal of the protecting groups and to produce high purity therapeutic grade DNA oligonucleotides, RNA oligonucleotides, diagnostic DNA, diagnostic RNA for microarray platform. The deprotection of FMOC protecting groups of the natural deoxy and ribonucleosides occurs under very mild deprotection conditions such as mild bases, secondary and tertiary amines for removal of such groups under such conditions would allows synthesis of various DNA and RNA of highest purity for diagnostics and therapeutic application.

Abstract: The present invention relates to novel phosphoramidites, A-n-bz, C-n-bz, C-n-ac, G-n-ac and U are produced with an HPLC purity of greater than 98% and 31P NMR purity greater than 99%. A novel process of reverse 5??3? directed synthesis of RNA oligomers has been developed and disclosed. Using that method demonstrated high quality RNA synthesis with coupling efficiency approaching 99%.

Abstract: The present invention is directed to n-alkylated synthetic nucleosides of high regiospecific purity and oligonucleotides that can be utilized for studies on reversal of cytotoxic and mutagenic DNA damage, and as diagnostic tools.

Abstract: This invention relates to n-alkylated synthetic nucleosides and phosphoramidites of high regio-specific purity and stability and for selective deprotection of the protecting group in oligonucleotides for the purpose of synthesis of high purity selectively n-alkylated sequence specific DNA and RNA. Such oligonucleotides are useful for study of mechanism of cytotoxic and mutagenic DNA damage, detection and reversal of cellular cytotoxic and mutagenic damages that occurs from the incorporation of methylated nucleosides, the corresponding phosphates and triphosphates and their precursors, via de novo DNA synthesis. The reagents could be extremely valuable tools as diagnostics and mutagenic reversal reagents.

Abstract: The invention involves various embodiments of a method for treating a human being for a condition associated with (1) seizures, myoclonic seizures, epilepsy, refractory epilepsy, hyperkinetic movements or tremors of hands or feet, (2) a state of ataxia, (3) accumulation of neuronal autofluorescent storage bodies in lysosomes or neurons, or regression of motor development, and (4) low alertness, dementia or mental retardation. The method involves administering a therapeutically effective salt of N-6-trimethyl-L-lysine.

Abstract: The thiol modified oligonucleotides have vast number of applications in the field of nucleic acid chemistry. The conjugates generated by mono thiol groups are unstable at higher temperature, in high salt concentration buffers and in presence other thiols. There is strong need to develop a novel thiol modifier probes that can generate multiple thiol groups. Described herein are efficient processes and compounds, dithiolane phosphoramidites derivative and dithiolane succinyl supports. The advantage of our cyclic disulfide thiol modifier is multifold a) each incorporation introduces two thiol groups; b) it can be introduced at any desired site of oligonucleotides; c) The symmetrical branching nature of the spacer in the linker arm of dithiolane allows for clean oligo synthesis, where cleavage of the linker arm and thereby of loss of oligo chain is prevented.

Abstract: The invention provides a novel method for the chemical synthesis of 2?,3?-cyclic phosphate and phosphorothioate of mono and terminated oligonucleotides synthesis. The invention also provides a novel method of for the chemical synthesis of 2?,3?- and 3?,5?-cyclic phosphate and phosphorothioate mononucleotide nucleotides. The process is based on quick and efficient cyclization of phosphoramidate moiety and neighboring hydroxyl group. The present invention is directed towards the synthesis of high purity DNA and RNAs, specifically to introduce cyclic phosphate at 3?-end of oligonucleotides. Such DNA and RNA's have extensive application in therapeutics, diagnostics, drug design, and selective inhibition of an RNA sequence within cellular environment, in pre-tRNA cleavage and in ribozyme ligation. The 2?,3?-cyclic phosphate nucleosides are involved in a vast number of applications in molecular biology in general and mammalian cells in particular.

Abstract: The present invention provides building blocks and methods for synthesizing very pure RNA in a form that can efficiently be modified at the 3? end. Reverse RNA monomer phosphoramidites have been developed for RNA synthesis in 5??3? direction, leading to very clean oligo synthesis that allows for the introduction of various modifications at the 3?-end cleanly and efficiently. Higher coupling efficiency per step have been observed during automated oligo synthesis with the reverse RNA amidites disclosed herein, resulting in a greater ability to achieve higher purity and produce very long oligonucleotides. The use of the reverse RNA phosphoramidites in the synthetic process of this invention leads to oligonucleotides free of N+1 species.

Abstract: The invention provides a novel method of labeling oligonucleotides, with reporter moieties, including but not limited to, quenchers, fluorophores, biotin, digoxigenin, peptides and proteins. In addition, this invention provides a method of detecting hybridization of oligonucleotides. This invention also provides novel azo quenchers having the general formula shown below. The invention further provides compositions comprising labeled oligonucleotides and solid supports. The invention also provides kits comprising at least one composition of the present invention.

Abstract: The present invention relates to novel phosphoramidites, A-n-bz, C-n-bz, C-n-ac, G-n-ac and U are produced with an HPLC purity of greater than 98% and 31P NMR purity greater than 99%. A novel process of reverse 5??3? directed synthesis of RNA oligomers has been developed and disclosed. Using that method demonstrated high quality RNA synthesis with coupling efficiency approaching 99%.

Abstract: Novel technology for RNA synthesis in the reverse direction, involving a new class of products, 3?-DMT-5’-CE ribonucleoside phosphoramidites and 3?-DMT-5’-succinyl ribonucleoside solid supports, with per step coupling efficiency surpassing 99% in the RNA synthesis. This leads to high purity RNA. Examples of a large number of 20-21 mers and a few examples of long chain oligonucleotides are demonstrated. The data indicates dramatic improvement in coupling efficiency per step during oligonucleotide synthesis using the reverse RNA monomers (5??? direction) as compared to 3?-CE ribonucleoside phosphoramidites used in the conventional method of RNA synthesis (3??5? direction). The new process requires shorter coupling cycle time, approx. 4 minutes as compared to approx. 10 minutes using conventional RNA synthesis method (3??5? direction). Furthermore, almost complete absence of M+1 impurities in the reverse RNA synthesis methodology were observed, even when the last phosphoramidite was a macromolecule.

Abstract: The present invention provides building blocks and methods for synthesizing very pure RNA in a form that can efficiently be modified at the 3? end. Reverse RNA monomer phosphoramidites have been developed for RNA synthesis in 5??3? direction, leading to very clean oligo synthesis that allows for the introduction of various modifications at the 3?-end cleanly and efficiently. Higher coupling efficiency per step have been observed during automated oligo synthesis with the reverse RNA amidites disclosed herein, resulting in a greater ability to achieve higher purity and produce very long oligonucleotides. The use of the reverse RNA phosphoramidites in the synthetic process of this invention leads to oligonucleotides free of N+1 species.

Abstract: The invention provides a novel group of azo quencher compositions that are useful as quenchers of fluorescence and to methods for making and using them. The quenchers contain an azo bond and 1,3,3-trimethyl-2-methyleneindoline ring system. The quenchers can be derivatized to facilitate their conjugation to a variety of biologically relevant compounds, including lipids, nucleic acids, peptides, proteins, and the like.

Abstract: The invention provides compositions for and methods of treating a number of disorders. In one embodiment, the invention provides a method of treating a wide range of conditions by administering to a human being in need of such treatment, a therapeutically effective amount of (a) N-6-trimethyl-L-lysine of at least 98% purity, (b) a prodrug thereof, (c) an aliphatic chain derivative thereof, (d) an ester derivative thereof, (e) an amide derivative thereof, or (f) a pharmaceutically acceptable salt of said N-6-trimethyl-L-lysine or said prodrug.