data_bmst000115 save_entry_information _Entry.Sf_category entry_information _Entry.Sf_framecode entry_information _Entry.ID bmst000115 _Entry.Title niacin _Entry.Version_type update _Entry.Submission_date 2007-03-13 _Entry.Accession_date 2007-03-13 _Entry.Last_release_date 2011-09-14 _Entry.Original_release_date 2007-03-13 _Entry.Origination author _Entry.NMR_STAR_version 3.1.1.7 _Entry.Original_NMR_STAR_version 'NMR STAR v3.1' _Entry.Experimental_method NMR _Entry.Experimental_method_subtype theoretical _Entry.Details ? _Entry.BMRB_internal_directory_name niacin loop_ _Entry_author.Ordinal _Entry_author.Given_name _Entry_author.Family_name _Entry_author.Middle_initials _Entry_author.Family_title _Entry_author.Entry_ID 1 William Westler M. ? bmst000115 2 John Markley L. ? bmst000115 stop_ loop_ _Entry_src.ID _Entry_src.Project_name _Entry_src.Organization_full_name _Entry_src.Organization_initials _Entry_src.Entry_ID 1 metabolics "Madison Metabolomics Consortium" MMC bmst000115 stop_ loop_ _Data_set.Type _Data_set.Count _Data_set.Entry_ID other_data_list 1 bmst000115 stop_ loop_ _Datum.Type _Datum.Count _Datum.Entry_ID "theoretical chemical shifts" 1 bmst000115 stop_ loop_ _Release.Release_number _Release.Date _Release.Submission_date _Release.Type _Release.Author _Release.Detail _Release.Entry_ID 1 2007-03-13 2007-03-13 original BMRB "Original theoretical calculations from NMRFAM" bmst000115 2 2008-11-18 2008-11-18 update BMRB "updated the file to match latest NMR STAR dictionary" bmst000115 3 2008-11-25 2008-11-25 update BMRB "fixed enumerations: N should be no" bmst000115 4 2010-09-16 2010-09-16 update BMRB "Removed Shielding_tensor_list_ID and Shielding_tensor_list_label from theoretical_chem_shifts" bmst000115 5 2011-09-14 2011-09-14 update BMRB "Partially brought up to date with latest Dictionary" bmst000115 stop_ save_ save_citations _Citation.Sf_category citations _Citation.Sf_framecode citations _Citation.Entry_ID bmst000115 _Citation.ID 1 _Citation.Class 'reference citation' _Citation.PubMed_ID 18940862 _Citation.Title 'Database resources of the National Center for Biotechnology Information.' _Citation.Status published _Citation.Type internet _Citation.WWW_URL http://pubchem.ncbi.nlm.nih.gov/ _Citation.Year 2006 _Citation.Details ? loop_ _Citation_author.Ordinal _Citation_author.Given_name _Citation_author.Family_name _Citation_author.First_initial _Citation_author.Middle_initials _Citation_author.Family_title _Citation_author.Entry_ID _Citation_author.Citation_ID 1 D. Wheeler D. L. ? bmst000115 1 2 T. Barrett T. ? ? bmst000115 1 3 D. Benson D. A. ? bmst000115 1 4 S. Bryant S. H. ? bmst000115 1 5 K. Canese K. ? ? bmst000115 1 6 V. Chetvenin V. ? ? bmst000115 1 7 D. Church D. M. ? bmst000115 1 8 M. DiCuccio M. ? ? bmst000115 1 9 R. Edgar R. ? ? bmst000115 1 10 S. Federhen S. ? ? bmst000115 1 11 L. Geer L. Y. ? bmst000115 1 12 W. Helmberg W. ? ? bmst000115 1 13 Y. Kapustin Y. ? ? bmst000115 1 14 D. Kenton D. L. ? bmst000115 1 15 O. Khovayko O. ? ? bmst000115 1 16 D. Lipman D. J. ? bmst000115 1 17 T. Madden T. L. ? bmst000115 1 18 D. Maglott D. R. ? bmst000115 1 19 J. Ostell J. ? ? bmst000115 1 20 K. Pruitt K. D. ? bmst000115 1 21 G. Schuler G. D. ? bmst000115 1 22 L. Schriml L. M. ? bmst000115 1 23 E. Sequeira E. ? ? bmst000115 1 24 S. Sherry S. T. ? bmst000115 1 25 K. Sirotkin K. ? ? bmst000115 1 26 A. Souvorov A. ? ? bmst000115 1 27 G. Starchenko G. ? ? bmst000115 1 28 T. Suzek T. O. ? bmst000115 1 29 R. Tatusov R. ? ? bmst000115 1 30 T. Tatusova T. A. ? bmst000115 1 31 L. Bagner L. ? ? bmst000115 1 32 E. Yaschenko E. ? ? bmst000115 1 stop_ save_ save_assembly _Assembly.Sf_category assembly _Assembly.Sf_framecode assembly _Assembly.Entry_ID bmst000115 _Assembly.ID 1 _Assembly.Name ASSEMBLY_NAME _Assembly.Number_of_components 1 _Assembly.Organic_ligands 0 _Assembly.Metal_ions ? _Assembly.Non_standard_bonds no _Assembly.Paramagnetic no _Assembly.Thiol_state 'not reported' loop_ _Entity_assembly.ID _Entity_assembly.Entity_assembly_name _Entity_assembly.Entity_ID _Entity_assembly.Entity_label _Entity_assembly.Experimental_data_reported _Entity_assembly.Physical_state _Entity_assembly.Conformational_isomer _Entity_assembly.Chemical_exchange_state _Entity_assembly.Magnetic_equivalence_group_code _Entity_assembly.Role _Entity_assembly.Details _Entity_assembly.Entry_ID _Entity_assembly.Assembly_ID 1 ENT_NAME 1 $niacin yes native no no ? ? ? bmst000115 1 stop_ save_ save_niacin _Entity.Sf_category entity _Entity.Sf_framecode niacin _Entity.Entry_ID bmst000115 _Entity.ID 1 _Entity.BMRB_code ? _Entity.Name 'nicotinic acid' _Entity.Type non-polymer _Entity.Ambiguous_conformational_states no _Entity.Ambiguous_chem_comp_sites no _Entity.Nstd_monomer no _Entity.Nstd_chirality no _Entity.Nstd_linkage no _Entity.Paramagnetic no _Entity.Thiol_state 'not reported' loop_ _Entity_comp_index.ID _Entity_comp_index.Comp_ID _Entity_comp_index.Comp_label _Entity_comp_index.Entry_ID _Entity_comp_index.Entity_ID 1 1 $chem_comp_1 bmst000115 1 stop_ save_ save_chem_comp_1 _Chem_comp.Sf_category chem_comp _Chem_comp.Sf_framecode chem_comp_1 _Chem_comp.Entry_ID bmst000115 _Chem_comp.ID 1 _Chem_comp.Provenance PubChem _Chem_comp.Name 'nicotinic acid' _Chem_comp.Type non-polymer _Chem_comp.BMRB_code ? _Chem_comp.PDB_code ? _Chem_comp.InCHi_code InChI=1/C6H5NO2/c8-6(9)5-2-1-3-7-4-5/h1-4H,(H,8,9)/f/h8H _Chem_comp.Mon_nstd_flag ? _Chem_comp.Std_deriv_one_letter_code ? _Chem_comp.Std_deriv_three_letter_code ? _Chem_comp.Std_deriv_BMRB_code ? _Chem_comp.Std_deriv_PDB_code ? _Chem_comp.Formal_charge ? _Chem_comp.Paramagnetic no _Chem_comp.Aromatic yes _Chem_comp.Formula 'C6 H5 N O2' _Chem_comp.Formula_weight 123.1094000000 _Chem_comp.Formula_mono_iso_wt_nat 123.03202841 _Chem_comp.Formula_mono_iso_wt_13C 129.052157437 _Chem_comp.Formula_mono_iso_wt_15N 124.029063303 _Chem_comp.Formula_mono_iso_wt_13C_15N 129.052157437 _Chem_comp.Image_file_name standards/niacin/lit/3552.png _Chem_comp.Image_file_format png _Chem_comp.Topo_file_name ? _Chem_comp.Topo_file_format ? _Chem_comp.Struct_file_name standards/niacin/lit/3552.mol _Chem_comp.Struct_file_format mol _Chem_comp.Stereochem_param_file_name ? _Chem_comp.Details ? _Chem_comp.DB_query_date ? _Chem_comp.DB_last_query_revised_last_date ? loop_ _Chem_comp_common_name.Name _Chem_comp_common_name.Type _Chem_comp_common_name.Entry_ID _Chem_comp_common_name.Comp_ID Nicotamin synonym bmst000115 1 "Pyridine-carboxylique-3 [French]" synonym bmst000115 1 SK-Niacin synonym bmst000115 1 Pelonin synonym bmst000115 1 "BRN 0109591" synonym bmst000115 1 "Pyridine-beta-carboxylic acid" synonym bmst000115 1 Nicocidin synonym bmst000115 1 Nicolar synonym bmst000115 1 NAH synonym bmst000115 1 Daskil synonym bmst000115 1 Niaspan synonym bmst000115 1 "Niacin [USAN]" synonym bmst000115 1 "Acidum nicotinicum [INN-Latin]" synonym bmst000115 1 Pellagramin synonym bmst000115 1 "Acide nicotinique [INN-French]" synonym bmst000115 1 Nicotinate synonym bmst000115 1 Nipellen synonym bmst000115 1 "Nicosan 3" synonym bmst000115 1 NICO synonym bmst000115 1 Nicotil synonym bmst000115 1 "Davitamon PP" synonym bmst000115 1 Nicobid synonym bmst000115 1 3-Carboxylpyridine synonym bmst000115 1 Nicoside synonym bmst000115 1 Nicorol synonym bmst000115 1 AI3-18994 synonym bmst000115 1 S115 synonym bmst000115 1 Peviton synonym bmst000115 1 "Nicotine acid" synonym bmst000115 1 Nicyl synonym bmst000115 1 Wampocap synonym bmst000115 1 Nicotinipca synonym bmst000115 1 "Kyselina nikotinova [Czech]" synonym bmst000115 1 Nicovasen synonym bmst000115 1 "Vitaplex N" synonym bmst000115 1 Tega-Span synonym bmst000115 1 "Pyridinecarboxylic acid, 3-" synonym bmst000115 1 Nicocrisina synonym bmst000115 1 Niconazid synonym bmst000115 1 Niacin synonym bmst000115 1 Diacin synonym bmst000115 1 Slo-niacin synonym bmst000115 1 "Acidum nicotinicum" synonym bmst000115 1 3-Carboxypyridine synonym bmst000115 1 "EPA Pesticide Chemical Code 056701" synonym bmst000115 1 "Nicotinsaure [German]" synonym bmst000115 1 Nicagin synonym bmst000115 1 Direktan synonym bmst000115 1 Niconacid synonym bmst000115 1 Enduracin synonym bmst000115 1 Efacin synonym bmst000115 1 Naotin synonym bmst000115 1 Bionic synonym bmst000115 1 Pellagrin synonym bmst000115 1 Akotin synonym bmst000115 1 Nicangin synonym bmst000115 1 Nicodelmine synonym bmst000115 1 "Caswell No. 598" synonym bmst000115 1 Nicocap synonym bmst000115 1 Niac synonym bmst000115 1 "Nicotinic acid" synonym bmst000115 1 Nyclin synonym bmst000115 1 "3-Pyridinecarboxylic acid" synonym bmst000115 1 "Acido nicotinico [INN-Spanish]" synonym bmst000115 1 Nico-span synonym bmst000115 1 Nicotene synonym bmst000115 1 Nicamin synonym bmst000115 1 Apelagrin synonym bmst000115 1 "SR 4390" synonym bmst000115 1 "Pyridine-3-carboxylic acid" synonym bmst000115 1 Nicovasan synonym bmst000115 1 Linic synonym bmst000115 1 Nicodon synonym bmst000115 1 Niconat synonym bmst000115 1 "NICOTINIC ACID" synonym bmst000115 1 Nicacid synonym bmst000115 1 Nicosyl synonym bmst000115 1 Nicodan synonym bmst000115 1 Tinic synonym bmst000115 1 Nico-400 synonym bmst000115 1 stop_ loop_ _Chem_comp_systematic_name.Name _Chem_comp_systematic_name.Naming_system _Chem_comp_systematic_name.Entry_ID _Chem_comp_systematic_name.Comp_ID "pyridine-3-carboxylic acid" IUPAC bmst000115 1 "nicotinic acid" IUPAC_TRADITIONAL bmst000115 1 "nicotinic acid" IUPAC_CAS bmst000115 1 "nicotinic acid" IUPAC_OPENEYE bmst000115 1 "pyridine-3-carboxylic acid" IUPAC_SYSTEMATIC bmst000115 1 stop_ loop_ _Chem_comp_SMILES.Type _Chem_comp_SMILES.String _Chem_comp_SMILES.Entry_ID _Chem_comp_SMILES.Comp_ID Isomeric C1=CC(=CN=C1)C(=O)O bmst000115 1 Canonical C1=CC(=CN=C1)C(=O)O bmst000115 1 stop_ loop_ _Chem_comp_atom.Atom_ID _Chem_comp_atom.Type_symbol _Chem_comp_atom.Stereo_config _Chem_comp_atom.Charge _Chem_comp_atom.Oxidation_number _Chem_comp_atom.Unpaired_electron_number _Chem_comp_atom.Drawing_2D_coord_x _Chem_comp_atom.Drawing_2D_coord_y _Chem_comp_atom.Model_Cartn_x _Chem_comp_atom.Model_Cartn_y _Chem_comp_atom.Model_Cartn_z _Chem_comp_atom.Entry_ID _Chem_comp_atom.Comp_ID C1 C ? ? ? ? 3.7321 -1.5600 -1.869 -1.222 -0.131 bmst000115 1 C2 C ? ? ? ? 3.7321 -0.5600 -0.480 -1.244 -0.103 bmst000115 1 C3 C ? ? ? ? 2.8660 -2.0600 -2.515 0.015 -0.053 bmst000115 1 C4 C ? ? ? ? 2.0000 -0.5600 -0.537 1.155 0.076 bmst000115 1 C5 C ? ? ? ? 2.8660 -0.0600 0.209 -0.030 0.003 bmst000115 1 C6 C ? ? ? ? 2.8660 0.9400 1.694 -0.053 0.031 bmst000115 1 N7 N ? ? ? ? 2.0000 -1.5600 -1.874 1.187 0.048 bmst000115 1 O8 O ? ? ? ? 3.7321 1.4400 2.240 1.187 0.144 bmst000115 1 O9 O ? ? ? ? 2.0000 1.4400 2.372 -1.057 -0.036 bmst000115 1 H10 H ? ? ? ? 4.2690 -1.8700 -2.445 -2.138 -0.212 bmst000115 1 H11 H ? ? ? ? 4.2690 -0.2500 0.084 -2.170 -0.160 bmst000115 1 H12 H ? ? ? ? 2.8660 -2.6800 -3.601 0.069 -0.073 bmst000115 1 H13 H ? ? ? ? 1.4631 -0.2500 -0.032 2.113 0.156 bmst000115 1 H14 H ? ? ? ? 3.7321 2.0600 3.205 1.054 0.147 bmst000115 1 stop_ loop_ _Atom_nomenclature.Atom_ID _Atom_nomenclature.Atom_name _Atom_nomenclature.Naming_system _Atom_nomenclature.Entry_ID _Atom_nomenclature.Comp_ID C1 C1 ? bmst000115 1 C2 C2 ? bmst000115 1 C3 C3 ? bmst000115 1 C4 C4 ? bmst000115 1 C5 C5 ? bmst000115 1 C6 C6 ? bmst000115 1 N7 N7 ? bmst000115 1 O8 O8 ? bmst000115 1 O9 O9 ? bmst000115 1 H10 H10 ? bmst000115 1 H11 H11 ? bmst000115 1 H12 H12 ? bmst000115 1 H13 H13 ? bmst000115 1 H14 H14 ? bmst000115 1 stop_ loop_ _Chem_comp_bond.ID _Chem_comp_bond.Type _Chem_comp_bond.Value_order _Chem_comp_bond.Atom_ID_1 _Chem_comp_bond.Atom_ID_2 _Chem_comp_bond.Details _Chem_comp_bond.Entry_ID _Chem_comp_bond.Comp_ID 1 covalent DOUB C1 C2 ? bmst000115 1 2 covalent SING C1 C3 ? bmst000115 1 3 covalent SING C1 H10 ? bmst000115 1 4 covalent SING C2 C5 ? bmst000115 1 5 covalent SING C2 H11 ? bmst000115 1 6 covalent DOUB C3 N7 ? bmst000115 1 7 covalent SING C3 H12 ? bmst000115 1 8 covalent DOUB C4 C5 ? bmst000115 1 9 covalent SING C4 N7 ? bmst000115 1 10 covalent SING C4 H13 ? bmst000115 1 11 covalent SING C5 C6 ? bmst000115 1 12 covalent SING C6 O8 ? bmst000115 1 13 covalent DOUB C6 O9 ? bmst000115 1 14 covalent SING O8 H14 ? bmst000115 1 stop_ loop_ _Chem_comp_db_link.Author_supplied _Chem_comp_db_link.Database_code _Chem_comp_db_link.Accession_code _Chem_comp_db_link.Accession_code_type _Chem_comp_db_link.Entry_mol_code _Chem_comp_db_link.Entry_mol_name _Chem_comp_db_link.Entry_experimental_method _Chem_comp_db_link.Entry_relation_type _Chem_comp_db_link.Entry_details _Chem_comp_db_link.Entry_ID _Chem_comp_db_link.Comp_ID no PubChem 148918 sid ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no PubChem 938 cid ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no PubChem 3552 sid ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no KEGG C00253 "compound ID" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 10361-13-4 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 123574-58-3 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 16518-17-5 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 1976-28-9 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 28029-53-0 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 28029-54-1 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 36321-41-2 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 3789-96-6 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 53890-72-5 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 54-86-4 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 59-67-6 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 636-79-3 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 7069-06-9 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 823-77-8 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "CAS Registry" 99148-57-9 "registry number" ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no CHEBI 15940 ? ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no "Beilstein Handbook Reference" 5-22-02-00057 ? ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no NSC 169454 ? ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no EINECS 200-441-0 ? ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no CCRIS 1902 ? ? "nicotinic acid" ? "matching entry" ? bmst000115 1 no HSDB 3134 ? ? "nicotinic acid" ? "matching entry" ? bmst000115 1 stop_ loop_ _Chem_comp_citation.Citation_ID _Chem_comp_citation.Citation_label _Chem_comp_citation.Entry_ID _Chem_comp_citation.Comp_ID 1 $citations bmst000115 1 stop_ save_ save_software_1 _Software.Sf_category software _Software.Sf_framecode software_1 _Software.Entry_ID bmst000115 _Software.ID 1 _Software.Name Gaussian _Software.Version ? _Software.Details ? loop_ _Vendor.Name _Vendor.Address _Vendor.Electronic_address _Vendor.Entry_ID _Vendor.Software_ID "Gaussian, Inc." ? http://www.gaussian.com/home.htm bmst000115 1 stop_ loop_ _Task.Task _Task.Entry_ID _Task.Software_ID "geometry optimization" bmst000115 1 "chemical shift calculation" bmst000115 1 stop_ save_ save_chem_shift_reference _Chem_shift_reference.Sf_category chem_shift_reference _Chem_shift_reference.Sf_framecode chem_shift_reference _Chem_shift_reference.Entry_ID bmst000115 _Chem_shift_reference.ID 1 _Chem_shift_reference.Details ? loop_ _Chem_shift_ref.Atom_type _Chem_shift_ref.Atom_isotope_number _Chem_shift_ref.Mol_common_name _Chem_shift_ref.Atom_group _Chem_shift_ref.Chem_shift_units _Chem_shift_ref.Chem_shift_val _Chem_shift_ref.Ref_method _Chem_shift_ref.Ref_type _Chem_shift_ref.Indirect_shift_ratio _Chem_shift_ref.Entry_ID _Chem_shift_ref.Chem_shift_reference_ID H 1 TMS "methyl protons" ppm 0.00 na direct ? bmst000115 1 C 13 TMS "methyl carbons" ppm 0.00 na direct ? bmst000115 1 N 15 "ammonia pentamer" nitrogen ppm 0.00 na direct ? bmst000115 1 P 31 "phosphoric acid" phosphorus ppm 0.00 na direct ? bmst000115 1 stop_ save_ save_chem_shifts_calc_type _Chem_shifts_calc_type.Sf_category chem_shifts_calc_type _Chem_shifts_calc_type.Sf_framecode chem_shifts_calc_type _Chem_shifts_calc_type.Entry_ID bmst000115 _Chem_shifts_calc_type.ID 1 _Chem_shifts_calc_type.Calculation_level 'Density Functional Theory' _Chem_shifts_calc_type.Quantum_mechanical_method GIAO _Chem_shifts_calc_type.Quantum_mechanical_theory_level B3LYP _Chem_shifts_calc_type.Quantum_mechanical_basis_set 3-21g** _Chem_shifts_calc_type.Chem_shift_nucleus ? _Chem_shifts_calc_type.Chem_shift_reference_ID 1 _Chem_shifts_calc_type.Chem_shift_reference_label $chem_shift_reference _Chem_shifts_calc_type.Details ; Theoretical Chemical shift referencing and correction: 1H chemical shifts Tetramethylsilane (TMS) was geometry optimized at the B3LYP/6-311+g* level of theory. The chemical shielding of TMS was calculated at the pbe1pbe/3-21g* level of theory using the GIAO method. The chemical shielding of TMS was used as the reference (0 ppm) to obtain all other chemical shifts. A series of small organic molecules were optimized and the chemical shieldings were calculated in the same manner as that for TMS. To correct for biases arising from the applied level of theory, especially the bias from the small basis set size, a linear regression analysis was used. The slope and intercept from this regression was used to correct the calculated chemical shifts. The chemical shift was calculated by subtracting the chemical shielding value of the compound of interest from that of TMS and applying the slope and intercept corrections obtained from the regression analysis. corrected_shift=((TMS_shielding - uncorrected_shielding)+1.006)/0.963 13C chemical shifts: Tetramethylsilane (TMS) was geometry optimized at the B3LYP/6-311+g* level of theory. The chemical shielding of TMS was calculated at the pbe1pbe/3-21g* level of theory using the GIAO method. The chemical shielding of TMS was used as the reference (0 ppm) to obtain all other chemical shifts. A series of small organic molecules were optimized and the chemical shieldings were calculated in the same manner as that for TMS. To correct for biases arising from the applied level of theory, especially the bias from the small basis set size, a linear regression analysis of theoretical versus experimental chemical shifts was used. The slope and intercept from this regression was used to correct the calculated chemical shifts. The chemical shift was calculated by subtracting the chemical shielding value of the compound of interest from that of TMS and applying the slope and intercept corrections obtained from the regression analysis. Corrected_shift=((TMS_shielding - uncorrected shielding) -4.53)/0.85 15N chemical shifts: A cyclic pentamer of ammonia (NH3_5) was geometry optimized at the B3LYP/6-311+g* level of theory. The chemical shielding of NH3_5 was calculated at the pbe1pbe/3-21g* level of theory using the GIAO method. The chemical shielding of NH3_5 was used as the reference (0 ppm) to obtain all other chemical shifts. A series of small organic molecules were optimized and the chemical shieldings were calculated in the same manner as that for NH3_5. To correct for biases arising from the applied level of theory, especially the bias from the small basis set size, a linear regression analysis was used. The slope and intercept from this regression was used to correct the calculated chemical shifts. The chemical shift was calculated by subtracting the chemical shielding value of the compound of interest from that of NH3_5 and applying the slope and intercept corrections obtained from the regression analysis. Corrected_shift=((NH_3_5_shielding - uncorrected_shielding)+10.2)/0.9088 31P chemical shifts: Phosphoric acid (H3PO4) was geometry optimized at the B3LYP/6-311+g* level of theory. The chemical shielding of H3PO4 was calculated at the pbe1pbe/3-21g* level of theory using the GIAO method. The chemical shielding of H3PO4 was used as the reference (0 ppm) to obtain all other chemical shifts. No correction for linear bias or offset was applied to calculated 31P chemical shifts. The chemical shift was calculated by subtracting the chemical shielding value of the compound of interest from that of H3PO4. Shift=(H3PO4_shielding - shielding) ; loop_ _Chem_shifts_calc_software.Software_ID _Chem_shifts_calc_software.Software_label _Chem_shifts_calc_software.Entry_ID _Chem_shifts_calc_software.Chem_shifts_calc_type_ID 1 $software_1 bmst000115 1 stop_ save_ save_theoretical_chem_shifts _Theoretical_chem_shift_list.Sf_category theoretical_chem_shifts _Theoretical_chem_shift_list.Sf_framecode theoretical_chem_shifts _Theoretical_chem_shift_list.Entry_ID bmst000115 _Theoretical_chem_shift_list.ID 1 _Theoretical_chem_shift_list.Data_file_name niacin_3552.g03.shifts _Theoretical_chem_shift_list.Chem_shifts_calc_type_ID 1 _Theoretical_chem_shift_list.Chem_shifts_calc_type_label $chem_shifts_calc_type _Theoretical_chem_shift_list.Model_atomic_coordinates_ID 1 _Theoretical_chem_shift_list.Model_atomic_coordinates_label $conformer_family_coord_set_1 _Theoretical_chem_shift_list.Fermi_contact_spin_density_units ? _Theoretical_chem_shift_list.Chem_shift_1H_err ? _Theoretical_chem_shift_list.Chem_shift_2H_err ? _Theoretical_chem_shift_list.Chem_shift_13C_err ? _Theoretical_chem_shift_list.Chem_shift_15N_err ? _Theoretical_chem_shift_list.Chem_shift_19F_err ? _Theoretical_chem_shift_list.Chem_shift_31P_err ? _Theoretical_chem_shift_list.Details ? _Theoretical_chem_shift_list.Text_data_format ? _Theoretical_chem_shift_list.Text_data ? loop_ _Theoretical_chem_shift.ID _Theoretical_chem_shift.Entity_assembly_ID _Theoretical_chem_shift.Entity_ID _Theoretical_chem_shift.Comp_index_ID _Theoretical_chem_shift.Comp_ID _Theoretical_chem_shift.Atom_ID _Theoretical_chem_shift.Atom_type _Theoretical_chem_shift.Fermi_contact_spin_density _Theoretical_chem_shift.Val _Theoretical_chem_shift.Val_err _Theoretical_chem_shift.Auth_seq_ID _Theoretical_chem_shift.Auth_comp_ID _Theoretical_chem_shift.Auth_atom_ID _Theoretical_chem_shift.Entry_ID _Theoretical_chem_shift.Theoretical_chem_shift_list_ID 1 1 1 1 1 C1 C ? 123.846 ? niacin ? ? bmst000115 1 2 1 1 1 1 C2 C ? 137.578 ? niacin ? ? bmst000115 1 3 1 1 1 1 C3 C ? 156.461 ? niacin ? ? bmst000115 1 4 1 1 1 1 C4 C ? 154.146 ? niacin ? ? bmst000115 1 5 1 1 1 1 C5 C ? 125.238 ? niacin ? ? bmst000115 1 6 1 1 1 1 C6 C ? 170.482 ? niacin ? ? bmst000115 1 7 1 1 1 1 N7 N ? 353.539 ? niacin ? ? bmst000115 1 8 1 1 1 1 H10 H ? 8.834 ? niacin ? ? bmst000115 1 9 1 1 1 1 H11 H ? 9.875 ? niacin ? ? bmst000115 1 10 1 1 1 1 H12 H ? 10.440 ? niacin ? ? bmst000115 1 11 1 1 1 1 H13 H ? 11.024 ? niacin ? ? bmst000115 1 12 1 1 1 1 H14 H ? 6.807 ? niacin ? ? bmst000115 1 stop_ save_ save_conformer_family_coord_set_1 _Conformer_family_coord_set.Sf_category conformer_family_coord_set _Conformer_family_coord_set.Sf_framecode conformer_family_coord_set_1 _Conformer_family_coord_set.Entry_ID bmst000115 _Conformer_family_coord_set.ID 1 _Conformer_family_coord_set.File_name niacin_3552_opt.pdb _Conformer_family_coord_set.Details ? loop_ _Conformer_family_software.Software_ID _Conformer_family_software.Software_label _Conformer_family_software.Entry_ID _Conformer_family_software.Conformer_family_coord_set_ID 1 $software_1 bmst000115 1 stop_ loop_ _Atom_site.Model_ID _Atom_site.ID _Atom_site.Label_entity_assembly_ID _Atom_site.Label_entity_ID _Atom_site.Label_comp_index_ID _Atom_site.Label_comp_ID _Atom_site.Label_atom_ID _Atom_site.Auth_seq_ID _Atom_site.Auth_comp_ID _Atom_site.Auth_atom_ID _Atom_site.Type_symbol _Atom_site.Cartn_x _Atom_site.Cartn_y _Atom_site.Cartn_z _Atom_site.Entry_ID _Atom_site.Conformer_family_coord_set_ID 1 1 1 1 1 1 C1 1 1 C1 C -1.869 -1.222 -0.131 bmst000115 1 1 2 1 1 1 1 C2 1 1 C2 C -0.480 -1.244 -0.103 bmst000115 1 1 3 1 1 1 1 C3 1 1 C3 C -2.515 0.015 -0.053 bmst000115 1 1 4 1 1 1 1 C4 1 1 C4 C -0.537 1.155 0.076 bmst000115 1 1 5 1 1 1 1 C5 1 1 C5 C 0.209 -0.030 0.003 bmst000115 1 1 6 1 1 1 1 C6 1 1 C6 C 1.694 -0.053 0.031 bmst000115 1 1 7 1 1 1 1 N7 1 1 N7 N -1.874 1.187 0.048 bmst000115 1 1 8 1 1 1 1 O8 1 1 O8 O 2.240 1.187 0.144 bmst000115 1 1 9 1 1 1 1 O9 1 1 O9 O 2.372 -1.057 -0.036 bmst000115 1 1 10 1 1 1 1 H10 1 1 H10 H -2.445 -2.138 -0.212 bmst000115 1 1 11 1 1 1 1 H11 1 1 H11 H 0.084 -2.170 -0.160 bmst000115 1 1 12 1 1 1 1 H12 1 1 H12 H -3.601 0.069 -0.073 bmst000115 1 1 13 1 1 1 1 H13 1 1 H13 H -0.032 2.113 0.156 bmst000115 1 1 14 1 1 1 1 H14 1 1 H14 H 3.205 1.054 0.147 bmst000115 1 stop_ save_