登録情報 データベース : PDB / ID : 6l7d 構造の表示 ダウンロードとリンクタイトル Mycobacterium tuberculosis enolase mutant - S42A 要素Enolase 詳細 キーワード HYDROLASE / Mycobacterium tuberculosis / enolase / mutant / complex機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
phosphopyruvate hydratase / phosphopyruvate hydratase complex / phosphopyruvate hydratase activity / peptidoglycan-based cell wall / glycolytic process / cell surface / magnesium ion binding / extracellular region / plasma membrane 類似検索 - 分子機能 Enolase / Enolase, conserved site / Enolase, C-terminal TIM barrel domain / Enolase, N-terminal / Enolase, C-terminal TIM barrel domain / Enolase, N-terminal domain / Enolase signature. / Enolase, C-terminal TIM barrel domain / Enolase, N-terminal domain / Enolase-like, N-terminal / Enolase-like, C-terminal domain superfamily 類似検索 - ドメイン・相同性 2-PHOSPHOGLYCERIC ACID / ACETATE ION / Enolase 類似検索 - 構成要素生物種 Mycobacterium tuberculosis H37Rv (結核菌)手法 X線回折 / 分子置換 / 解像度 : 3 Å 詳細データ登録者 Ahmad, M. / Jha, B. / Tiwari, S. / Dwivedy, A. / Biswal, B.K. 資金援助 インド, 1件 詳細 詳細を隠す組織 認可番号 国 Department of Biotechnology (DBT, India) インド
引用ジャーナル : IUCrJ / 年 : 2023タイトル : Structural snapshots of Mycobacterium tuberculosis enolase reveal dual mode of 2PG binding and its implication in enzyme catalysis.著者: Mohammed Ahmad / Bhavya Jha / Sucharita Bose / Satish Tiwari / Abhisek Dwivedy / Deepshikha Kar / Ravikant Pal / Richard Mariadasse / Tanya Parish / Jeyaraman Jeyakanthan / Kutti R ... 著者 : Mohammed Ahmad / Bhavya Jha / Sucharita Bose / Satish Tiwari / Abhisek Dwivedy / Deepshikha Kar / Ravikant Pal / Richard Mariadasse / Tanya Parish / Jeyaraman Jeyakanthan / Kutti R Vinothkumar / Bichitra Kumar Biswal / 要旨 : Enolase, a ubiquitous enzyme, catalyzes the reversible conversion of 2-phosphoglycerate (2PG) to phosphoenolpyruvate (PEP) in the glycolytic pathway of organisms of all three domains of life. The ... Enolase, a ubiquitous enzyme, catalyzes the reversible conversion of 2-phosphoglycerate (2PG) to phosphoenolpyruvate (PEP) in the glycolytic pathway of organisms of all three domains of life. The underlying mechanism of the 2PG to PEP conversion has been studied in great detail in previous work, however that of the reverse reaction remains to be explored. Here we present structural snapshots of Mycobacterium tuberculosis (Mtb) enolase in apo, PEP-bound and two 2PG-bound forms as it catalyzes the conversion of PEP to 2PG. The two 2PG-bound complex structures differed in the conformation of the bound product (2PG) viz the widely reported canonical conformation and a novel binding pose, which we refer to here as the alternate conformation. Notably, we observed two major differences compared with the forward reaction: the presence of Mg is non-obligatory for the reaction and 2PG assumes an alternate conformation that is likely to facilitate its dissociation from the active site. Molecular dynamics studies and binding free energy calculations further substantiate that the alternate conformation of 2PG causes distortions in both metal ion coordination and hydrogen-bonding interactions, resulting in an increased flexibility of the active-site loops and aiding product release. Taken together, this study presents a probable mechanism involved in PEP to 2PG catalysis that is likely to be mediated by the conformational change of 2PG at the active site. 履歴 登録 2019年11月1日 登録サイト : PDBJ / 処理サイト : PDBJ改定 1.0 2020年11月4日 Provider : repository / タイプ : Initial release改定 2.0 2021年4月14日 Group : Advisory / Atomic model ... Advisory / Atomic model / Author supporting evidence / Data collection / Derived calculations / Non-polymer description / Other / Refinement description / Structure summary カテゴリ : atom_site / atom_site_anisotrop ... atom_site / atom_site_anisotrop / atom_sites / cell / chem_comp / entity / pdbx_entity_instance_feature / pdbx_entity_nonpoly / pdbx_entry_details / pdbx_nonpoly_scheme / pdbx_refine_tls / pdbx_refine_tls_group / pdbx_struct_assembly_gen / pdbx_struct_assembly_prop / pdbx_struct_conn_angle / pdbx_struct_sheet_hbond / pdbx_unobs_or_zero_occ_atoms / pdbx_validate_close_contact / pdbx_validate_peptide_omega / pdbx_validate_planes / pdbx_validate_rmsd_angle / pdbx_validate_torsion / refine / refine_hist / refine_ls_restr / refine_ls_shell / reflns / software / struct_asym / struct_conf / struct_conn / struct_sheet_range / struct_site / struct_site_gen / symmetry Item : _atom_sites.fract_transf_matrix[2][1] / _atom_sites.fract_transf_matrix[3][2] ... _atom_sites.fract_transf_matrix[2][1] / _atom_sites.fract_transf_matrix[3][2] / _cell.volume / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.type / _entity.formula_weight / _entity.pdbx_description / _entity.pdbx_number_of_molecules / _pdbx_entity_nonpoly.comp_id / _pdbx_entity_nonpoly.name / _pdbx_entry_details.has_ligand_of_interest / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_assembly_prop.value / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.value / _pdbx_struct_sheet_hbond.range_1_auth_comp_id / _pdbx_struct_sheet_hbond.range_1_auth_seq_id / _pdbx_struct_sheet_hbond.range_1_label_comp_id / _pdbx_struct_sheet_hbond.range_1_label_seq_id / _pdbx_struct_sheet_hbond.range_2_auth_comp_id / _pdbx_struct_sheet_hbond.range_2_auth_seq_id / _pdbx_struct_sheet_hbond.range_2_label_comp_id / _pdbx_struct_sheet_hbond.range_2_label_seq_id / _refine.B_iso_max / _refine.B_iso_mean / _refine.B_iso_min / _refine.aniso_B[1][1] / _refine.aniso_B[1][2] / _refine.aniso_B[1][3] / _refine.aniso_B[2][2] / _refine.aniso_B[2][3] / _refine.aniso_B[3][3] / _refine.correlation_coeff_Fo_to_Fc / _refine.correlation_coeff_Fo_to_Fc_free / _refine.details / _refine.ls_R_factor_R_free / _refine.ls_R_factor_R_work / _refine.ls_R_factor_obs / _refine.ls_d_res_low / _refine.ls_number_reflns_R_work / _refine.ls_number_reflns_obs / _refine.ls_percent_reflns_R_free / _refine.ls_percent_reflns_obs / _refine.overall_SU_B / _refine.overall_SU_ML / _refine.pdbx_ls_cross_valid_method / _refine.pdbx_ls_sigma_F / _refine.pdbx_overall_ESU_R_Free / _refine.pdbx_overall_phase_error / _refine.pdbx_solvent_ion_probe_radii / _refine.pdbx_solvent_shrinkage_radii / _refine.pdbx_solvent_vdw_probe_radii / _refine.pdbx_stereochemistry_target_values / _refine.solvent_model_details / _refine_hist.cycle_id / _refine_hist.d_res_low / _refine_hist.number_atoms_solvent / _refine_hist.number_atoms_total / _refine_hist.pdbx_B_iso_mean_ligand / _refine_hist.pdbx_B_iso_mean_solvent / _refine_hist.pdbx_number_atoms_ligand / _refine_hist.pdbx_number_atoms_protein / _refine_hist.pdbx_number_residues_total / _reflns.B_iso_Wilson_estimate / _software.name / _software.version / _struct_sheet_range.beg_auth_seq_id / _struct_sheet_range.beg_label_seq_id / _struct_sheet_range.end_auth_comp_id / _struct_sheet_range.end_auth_seq_id / _struct_sheet_range.end_label_comp_id / _struct_sheet_range.end_label_seq_id / _symmetry.space_group_name_Hall 解説 : Ligand identity / Provider : author / タイプ : Coordinate replacement改定 3.0 2022年1月26日 Group : Advisory / Atomic model ... Advisory / Atomic model / Author supporting evidence / Data collection / Database references / Derived calculations / Non-polymer description / Other / Refinement description / Source and taxonomy / Structure summary カテゴリ : atom_site / atom_site_anisotrop ... atom_site / atom_site_anisotrop / atom_sites / cell / chem_comp / database_2 / entity / entity_src_gen / pdbx_audit_support / pdbx_contact_author / pdbx_entity_instance_feature / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_refine_tls / pdbx_refine_tls_group / pdbx_struct_conn_angle / pdbx_struct_sheet_hbond / pdbx_unobs_or_zero_occ_atoms / pdbx_validate_peptide_omega / pdbx_validate_torsion / refine / refine_hist / refine_ls_restr / refine_ls_shell / software / struct_conf / struct_conn / symmetry Item : _atom_sites.fract_transf_matrix[2][1] / _atom_sites.fract_transf_matrix[3][2] ... _atom_sites.fract_transf_matrix[2][1] / _atom_sites.fract_transf_matrix[3][2] / _cell.volume / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.pdbx_synonyms / _chem_comp.type / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _entity.formula_weight / _entity.pdbx_description / _entity.pdbx_number_of_molecules / _entity_src_gen.pdbx_gene_src_scientific_name / _pdbx_entity_instance_feature.auth_comp_id / _pdbx_entity_instance_feature.comp_id / _pdbx_entity_nonpoly.comp_id / _pdbx_entity_nonpoly.name / _pdbx_refine_tls.L[1][1] / _pdbx_refine_tls.L[1][2] / _pdbx_refine_tls.L[1][3] / _pdbx_refine_tls.L[2][2] / _pdbx_refine_tls.L[2][3] / _pdbx_refine_tls.L[3][3] / _pdbx_refine_tls.S[1][1] / _pdbx_refine_tls.S[1][2] / _pdbx_refine_tls.S[1][3] / _pdbx_refine_tls.S[2][1] / _pdbx_refine_tls.S[2][2] / _pdbx_refine_tls.S[2][3] / _pdbx_refine_tls.S[3][1] / _pdbx_refine_tls.S[3][2] / _pdbx_refine_tls.S[3][3] / _pdbx_refine_tls.T[1][1] / _pdbx_refine_tls.T[1][2] / _pdbx_refine_tls.T[1][3] / _pdbx_refine_tls.T[2][2] / _pdbx_refine_tls.T[2][3] / _pdbx_refine_tls.T[3][3] / _pdbx_refine_tls.origin_x / _pdbx_refine_tls.origin_y / _pdbx_refine_tls.origin_z / _pdbx_refine_tls_group.beg_auth_asym_id / _pdbx_refine_tls_group.beg_auth_seq_id / _pdbx_refine_tls_group.end_auth_asym_id / _pdbx_refine_tls_group.end_auth_seq_id / _pdbx_refine_tls_group.selection_details / _pdbx_struct_sheet_hbond.range_1_auth_comp_id / _pdbx_struct_sheet_hbond.range_1_auth_seq_id / _pdbx_struct_sheet_hbond.range_1_label_comp_id / _pdbx_struct_sheet_hbond.range_1_label_seq_id / _pdbx_struct_sheet_hbond.range_2_auth_comp_id / _pdbx_struct_sheet_hbond.range_2_auth_seq_id / _pdbx_struct_sheet_hbond.range_2_label_comp_id / _pdbx_struct_sheet_hbond.range_2_label_seq_id / _refine.B_iso_max / _refine.B_iso_mean / _refine.B_iso_min / _refine.aniso_B[1][1] / _refine.aniso_B[1][2] / _refine.aniso_B[1][3] / _refine.aniso_B[2][2] / _refine.aniso_B[2][3] / _refine.aniso_B[3][3] / _refine.correlation_coeff_Fo_to_Fc / _refine.correlation_coeff_Fo_to_Fc_free / _refine.details / _refine.ls_R_factor_R_free / _refine.ls_R_factor_R_work / _refine.ls_R_factor_obs / _refine.ls_d_res_low / _refine.ls_number_reflns_R_work / _refine.ls_number_reflns_obs / _refine.ls_percent_reflns_R_free / _refine.ls_percent_reflns_obs / _refine.overall_SU_B / _refine.overall_SU_ML / _refine.pdbx_ls_cross_valid_method / _refine.pdbx_ls_sigma_F / _refine.pdbx_overall_ESU_R_Free / _refine.pdbx_overall_phase_error / _refine.pdbx_solvent_ion_probe_radii / _refine.pdbx_solvent_shrinkage_radii / _refine.pdbx_solvent_vdw_probe_radii / _refine.pdbx_stereochemistry_target_values / _refine.solvent_model_details / _refine_hist.cycle_id / _refine_hist.d_res_low / _refine_hist.number_atoms_solvent / _refine_hist.number_atoms_total / _refine_hist.pdbx_B_iso_mean_ligand / _refine_hist.pdbx_B_iso_mean_solvent / _refine_hist.pdbx_number_atoms_ligand / _refine_hist.pdbx_number_atoms_protein / _refine_hist.pdbx_number_residues_total / _software.name / _software.version / _symmetry.space_group_name_Hall 解説 : Ligand identity / Provider : author / タイプ : Coordinate replacement改定 3.1 2023年11月8日 Group : Data collection / Database referencesカテゴリ : chem_comp_atom / chem_comp_bond ... chem_comp_atom / chem_comp_bond / citation / citation_author Item : _citation.country / _citation.journal_abbrev ... _citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year 改定 3.2 2023年11月22日 Group : Refinement description / カテゴリ : pdbx_initial_refinement_model
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