1KGK
| Direct Observation of a Cytosine Analog that Forms Five Hydrogen Bonds to Guanosine; Guanyl G-Clamp | Descriptor: | 5'-D(*GP*(GCK)P*GP*TP*AP*TP*AP*CP*GP*C)-3', METHOXY-ETHOXYL, SPERMINE (FULLY PROTONATED FORM) | Authors: | Wilds, C.J, Maier, M.A, Tereshko, V, Manoharan, M, Egli, M. | Deposit date: | 2001-11-27 | Release date: | 2001-12-21 | Last modified: | 2024-02-14 | Method: | X-RAY DIFFRACTION (1 Å) | Cite: | Direct Observation of a Cytosine Analogue that Forms Five Hydrogen Bonds to Guanosine: Guanidino G-Clamp Angew.Chem.Int.Ed.Engl., 41, 2002
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1XUX
| Structural rationalization of a large difference in RNA affinity despite a small difference in chemistry between two 2'-O-modified nucleic acid analogs | Descriptor: | DNA (5'-D(*GP*CP*GP*TP*AP*(NMS)P*AP*CP*GP*C)-3') | Authors: | Pattanayek, R, Sethaphong, L, Pan, C, Prhavc, M, Prakash, T.P, Manoharan, M, Egli, M. | Deposit date: | 2004-10-26 | Release date: | 2004-12-14 | Last modified: | 2023-08-23 | Method: | X-RAY DIFFRACTION (1.3 Å) | Cite: | Structural rationalization of a large difference in RNA affinity despite a small difference in chemistry between two 2'-O-modified nucleic acid analogues. J.Am.Chem.Soc., 126, 2004
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1XUW
| Structural rationalization of a large difference in RNA affinity despite a small difference in chemistry between two 2'-O-modified nucleic acid analogs | Descriptor: | DNA (5'-D(*GP*CP*GP*TP*AP*(NMT)P*AP*CP*GP*C)-3') | Authors: | Pattanayek, R, Sethaphong, L, Pan, C, Prhavc, M, Prakash, T.P, Manoharan, M, Egli, M. | Deposit date: | 2004-10-26 | Release date: | 2004-12-14 | Last modified: | 2023-08-23 | Method: | X-RAY DIFFRACTION (1.25 Å) | Cite: | Structural rationalization of a large difference in RNA affinity despite a small difference in chemistry between two 2'-O-modified nucleic acid analogues. J.Am.Chem.Soc., 126, 2004
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1Y9S
| Crystal structure of the A-DNA GCGTAT*CGC with a 2'-O-propargyl Thymidine (T*) | Descriptor: | 5'-D(*GP*CP*GP*TP*AP*(2GT)P*AP*CP*GP*C)-3') | Authors: | Egli, M, Minasov, G, Tereshko, V, Pallan, P.S, Teplova, M, Inamati, G.B, Lesnik, E.A, Owens, S.R, Ross, B.S, Prakash, T.P, Manoharan, M. | Deposit date: | 2004-12-16 | Release date: | 2005-06-28 | Last modified: | 2023-08-23 | Method: | X-RAY DIFFRACTION (1.55 Å) | Cite: | Probing the Influence of Stereoelectronic Effects on the Biophysical Properties of Oligonucleotides: Comprehensive Analysis of the RNA Affinity, Nuclease Resistance, and Crystal Structure of Ten 2'-O-Ribonucleic Acid Modifications. Biochemistry, 44, 2005
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1YBC
| Crystal structure of the A-DNA GCGTAT*CGC with a 2'-O-[2-(benzyloxy)ethyl] Thymidine (T*) | Descriptor: | 5'-D(*GP*CP*GP*TP*AP*(BOE)P*AP*CP*GP*C)-3'), STRONTIUM ION | Authors: | Egli, M, Minasov, G, Tereshko, V, Pallan, P.S, Teplova, M, Inamati, G.B, Lesnik, E.A, Owens, S.R, Ross, B.S, Prakash, T.P, Manoharan, M. | Deposit date: | 2004-12-20 | Release date: | 2005-06-28 | Last modified: | 2023-08-23 | Method: | X-RAY DIFFRACTION (1.8 Å) | Cite: | Probing the Influence of Stereoelectronic Effects on the Biophysical Properties of Oligonucleotides: Comprehensive Analysis of the RNA Affinity, Nuclease Resistance, and Crystal Structure of Ten 2'-O-Ribonucleic Acid Modifications. Biochemistry, 44, 2005
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1Y84
| Crystal structure of the A-DNA GCGTAT*CGC with a 2'-O-[2-(imidazolyl)ethyl] Thymidine (T*) | Descriptor: | 5'-D(*GP*CP*GP*TP*AP*(EIT)P*AP*CP*GP*C)-3', MAGNESIUM ION, SPERMINE | Authors: | Egli, M, Minasov, G, Tereshko, V, Pallan, P.S, Teplova, M, Inamati, G.B, Lesnik, E.A, Owens, S.R, Ross, B.S, Prakash, T.P, Manoharan, M. | Deposit date: | 2004-12-10 | Release date: | 2005-06-28 | Last modified: | 2023-08-23 | Method: | X-RAY DIFFRACTION (1.6 Å) | Cite: | Probing the Influence of Stereoelectronic Effects on the Biophysical Properties of Oligonucleotides: Comprehensive Analysis of the RNA Affinity, Nuclease Resistance, and Crystal Structure of Ten 2'-O-Ribonucleic Acid Modifications. Biochemistry, 44, 2005
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1Y8L
| Crystal structure of the A-DNA GCGTAT*CGC with a 2'-O-[2-(trifluoro)ethyl] Thymidine (T*) | Descriptor: | 5'-D(*GP*CP*GP*TP*AP*(TFE)P*AP*CP*GP*C)-3'), MAGNESIUM ION, SPERMINE | Authors: | Egli, M, Minasov, G, Tereshko, V, Pallan, P.S, Teplova, M, Inamati, G.B, Lesnik, E.A, Owens, S.R, Ross, B.S, Prakash, T.P, Manoharan, M. | Deposit date: | 2004-12-13 | Release date: | 2005-06-28 | Last modified: | 2023-08-23 | Method: | X-RAY DIFFRACTION (1.5 Å) | Cite: | Probing the Influence of Stereoelectronic Effects on the Biophysical Properties of Oligonucleotides: Comprehensive Analysis of the RNA Affinity, Nuclease Resistance, and Crystal Structure of Ten 2'-O-Ribonucleic Acid Modifications. Biochemistry, 44, 2005
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1Y7F
| Crystal structure of the A-DNA GCGTAT*CGC with a 2'-O-[2-[hydroxy(methyleneamino)oxy]ethyl] Thymidine (T*) | Descriptor: | 5'-D(*GP*CP*GP*TP*AP*(2NT)P*AP*CP*GP*C)-3'), BARIUM ION | Authors: | Egli, M, Minasov, G, Tereshko, V, Pallan, P.S, Teplova, M, Inamati, G.B, Lesnik, E.A, Owens, S.R, Ross, B.S, Prakash, T.P, Manoharan, M. | Deposit date: | 2004-12-08 | Release date: | 2005-06-28 | Last modified: | 2023-08-23 | Method: | X-RAY DIFFRACTION (1.6 Å) | Cite: | Probing the Influence of Stereoelectronic Effects on the Biophysical Properties of Oligonucleotides: Comprehensive Analysis of the RNA Affinity, Nuclease Resistance, and Crystal Structure of Ten 2'-O-Ribonucleic Acid Modifications. Biochemistry, 44, 2005
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1Y8V
| Crystal structure of the A-DNA GCGTAT*CGC with a 2'-O-propyl Thymidine (T*) | Descriptor: | 5'-D(*GP*CP*GP*TP*AP*(P2T)P*AP*CP*GP*C)-3' | Authors: | Egli, M, Minasov, G, Tereshko, V, Pallan, P.S, Teplova, M, Inamati, G.B, Lesnik, E.A, Owens, S.R, Ross, B.S, Prakash, T.P, Manoharan, M. | Deposit date: | 2004-12-13 | Release date: | 2005-06-28 | Last modified: | 2023-08-23 | Method: | X-RAY DIFFRACTION (1.5 Å) | Cite: | Probing the Influence of Stereoelectronic Effects on the Biophysical Properties of Oligonucleotides: Comprehensive Analysis of the RNA Affinity, Nuclease Resistance, and Crystal Structure of Ten 2'-O-Ribonucleic Acid Modifications. Biochemistry, 44, 2005
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1YB9
| Crystal structure of the A-DNA GCGTAT*CGC with a 2'-O-[2-(N,N-dimethylaminooxy)ethyl] Thymidine (T*) | Descriptor: | 5'-D(*GP*CP*GP*TP*AP*(2OT)P*AP*CP*GP*C)-3'), SPERMINE | Authors: | Egli, M, Minasov, G, Tereshko, V, Pallan, P.S, Teplova, M, Inamati, G.B, Lesnik, E.A, Owens, S.R, Ross, B.S, Prakash, T.P, Manoharan, M. | Deposit date: | 2004-12-20 | Release date: | 2005-06-28 | Last modified: | 2023-08-23 | Method: | X-RAY DIFFRACTION (1.65 Å) | Cite: | Probing the Influence of Stereoelectronic Effects on the Biophysical Properties of Oligonucleotides: Comprehensive Analysis of the RNA Affinity, Nuclease Resistance, and Crystal Structure of Ten 2'-O-Ribonucleic Acid Modifications. Biochemistry, 44, 2005
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1Y86
| Crystal structure of the A-DNA GCGTAT*CGC with a 2'-O-[2-(fluoro)ethyl] Thymidine (T*) | Descriptor: | 5'-D(*GP*CP*GP*TP*AP*(125)P*AP*CP*GP*C)-3' | Authors: | Egli, M, Minasov, G, Tereshko, V, Pallan, P.S, Teplova, M, Inamati, G.B, Lesnik, E.A, Owens, S.R, Ross, B.S, Prakash, T.P, Manoharan, M. | Deposit date: | 2004-12-10 | Release date: | 2005-06-28 | Last modified: | 2023-08-23 | Method: | X-RAY DIFFRACTION (1.7 Å) | Cite: | Probing the Influence of Stereoelectronic Effects on the Biophysical Properties of Oligonucleotides: Comprehensive Analysis of the RNA Affinity, Nuclease Resistance, and Crystal Structure of Ten 2'-O-Ribonucleic Acid Modifications. Biochemistry, 44, 2005
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1Y9F
| Crystal structure of the A-DNA GCGTAT*CGC with a 2'-O-allyl Thymidine (T*) | Descriptor: | 5'-D(*GP*CP*GP*TP*AP*(2AT)P*AP*CP*GP*C)-3') | Authors: | Egli, M, Minasov, G, Tereshko, V, Pallan, P.S, Teplova, M, Inamati, G.B, Lesnik, E.A, Owens, S.R, Ross, B.S, Prakash, T.P, Manoharan, M. | Deposit date: | 2004-12-15 | Release date: | 2005-06-28 | Last modified: | 2023-08-23 | Method: | X-RAY DIFFRACTION (1.6 Å) | Cite: | Probing the Influence of Stereoelectronic Effects on the Biophysical Properties of Oligonucleotides: Comprehensive Analysis of the RNA Affinity, Nuclease Resistance, and Crystal Structure of Ten 2'-O-Ribonucleic Acid Modifications. Biochemistry, 44, 2005
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8SKQ
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5DER
| RNA oligonucleotide containing (R)-C5'-ME-2'F U | Descriptor: | RNA oligonucleotide containing (R)-C5'-Me-2'-FU | Authors: | Harp, J.M, Egli, M. | Deposit date: | 2015-08-25 | Release date: | 2016-06-29 | Last modified: | 2024-03-06 | Method: | X-RAY DIFFRACTION (1.8 Å) | Cite: | Structural Basis of Duplex Thermodynamic Stability and Enhanced Nuclease Resistance of 5'-C-Methyl Pyrimidine-Modified Oligonucleotides. J.Org.Chem., 81, 2016
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5D8T
| RNA octamer containing (S)-5' methyl, 2'-F U. | Descriptor: | COBALT HEXAMMINE(III), RNA oligonucleotide containing (S)-C5'-Me-2'-FU | Authors: | Harp, J.M, Egli, M. | Deposit date: | 2015-08-17 | Release date: | 2016-06-29 | Last modified: | 2024-03-06 | Method: | X-RAY DIFFRACTION (1.2 Å) | Cite: | Structural Basis of Duplex Thermodynamic Stability and Enhanced Nuclease Resistance of 5'-C-Methyl Pyrimidine-Modified Oligonucleotides. J.Org.Chem., 81, 2016
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5DEK
| RNA octamer containing dT | Descriptor: | COBALT HEXAMMINE(III), RNA oligonucleotide containing dT | Authors: | Harp, J.M, Egli, M. | Deposit date: | 2015-08-25 | Release date: | 2016-07-20 | Last modified: | 2024-03-06 | Method: | X-RAY DIFFRACTION (1.993 Å) | Cite: | Structural Basis of Duplex Thermodynamic Stability and Enhanced Nuclease Resistance of 5'-C-Methyl Pyrimidine-Modified Oligonucleotides. J.Org.Chem., 81, 2016
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5VR4
| RNA octamer containing 2'-F-4'-OMe U. | Descriptor: | COBALT TETRAAMMINE ION, RNA (5'-R(*CP*GP*AP*AP*(UMO)P*UP*CP*G)-3') | Authors: | Harp, J.M, Egli, M. | Deposit date: | 2017-05-10 | Release date: | 2017-10-04 | Last modified: | 2023-10-04 | Method: | X-RAY DIFFRACTION (1.5 Å) | Cite: | 4'-C-Methoxy-2'-deoxy-2'-fluoro Modified Ribonucleotides Improve Metabolic Stability and Elicit Efficient RNAi-Mediated Gene Silencing. J. Am. Chem. Soc., 139, 2017
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6VEM
| Structure of RNA octamer | Descriptor: | COBALT HEXAMMINE(III), Modified Octamer RNA | Authors: | Pallan, P.S, Egli, M. | Deposit date: | 2020-01-02 | Release date: | 2020-11-18 | Last modified: | 2023-10-11 | Method: | X-RAY DIFFRACTION (1.56 Å) | Cite: | Synthesis, chirality-dependent conformational and biological properties of siRNAs containing 5'-(R)- and 5'-(S)-C-methyl-guanosine. Nucleic Acids Res., 48, 2020
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7LO9
| RNA dodecamer containing a GNA A residue | Descriptor: | Chains: A,B,C,D | Authors: | Harp, J.M, Wawrzak, Z, Egli, M. | Deposit date: | 2021-02-09 | Release date: | 2021-12-22 | Method: | X-RAY DIFFRACTION (1.78 Å) | Cite: | Overcoming GNA/RNA base-pairing limitations using isonucleotides improves the pharmacodynamic activity of ESC+ GalNAc-siRNAs. Nucleic Acids Res., 49, 2021
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6CY2
| RNA octamer containing 2'-OMe, 4'Calpha-OMe U. | Descriptor: | RNA (5'-R(*(CBV)P*GP*AP*AP*(UOA)P*UP*CP*G)-3') | Authors: | Harp, J.M, Egli, M. | Deposit date: | 2018-04-04 | Release date: | 2018-08-29 | Last modified: | 2024-03-13 | Method: | X-RAY DIFFRACTION (1.4 Å) | Cite: | Structural basis for the synergy of 4'- and 2'-modifications on siRNA nuclease resistance, thermal stability and RNAi activity. Nucleic Acids Res., 46, 2018
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2Q1O
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2Q1R
| Crystal Structure Analysis of the RNA Dodecamer CGCGAAUUAGCG, with a G-A mismatch. | Descriptor: | MAGNESIUM ION, RNA (5'-R(*CP*GP*CP*GP*AP*AP*UP*UP*AP*GP*CP*G)-3') | Authors: | Li, F, Pallan, P.S. | Deposit date: | 2007-05-25 | Release date: | 2007-10-30 | Last modified: | 2024-04-03 | Method: | X-RAY DIFFRACTION (1.12 Å) | Cite: | Crystal structure, stability and in vitro RNAi activity of oligoribonucleotides containing the ribo-difluorotoluyl nucleotide: insights into substrate requirements by the human RISC Ago2 enzyme. Nucleic Acids Res., 35, 2007
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7JJE
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7JJF
| Sarcin-ricin loop with modified residue. | Descriptor: | MAGNESIUM ION, RNA/DNA (27-mer) | Authors: | Harp, J.M, Pallan, P.S, Egli, M. | Deposit date: | 2020-07-25 | Release date: | 2020-12-23 | Last modified: | 2023-10-18 | Method: | X-RAY DIFFRACTION (1.2 Å) | Cite: | Incorporating a Thiophosphate Modification into a Common RNA Tetraloop Motif Causes an Unanticipated Stability Boost. Biochemistry, 59, 2020
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7JJD
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