National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R01MH114817
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R01GM118584
米国
National Science Foundation (NSF, United States)
MCB-1412472
米国
引用
ジャーナル: Cell Rep / 年: 2020 タイトル: Family-wide Structural and Biophysical Analysis of Binding Interactions among Non-clustered δ-Protocadherins. 著者: Oliver J Harrison / Julia Brasch / Phinikoula S Katsamba / Goran Ahlsen / Alex J Noble / Hanbin Dan / Rosemary V Sampogna / Clinton S Potter / Bridget Carragher / Barry Honig / Lawrence Shapiro / 要旨: Non-clustered δ1- and δ2-protocadherins, close relatives of clustered protocadherins, function in cell adhesion and motility and play essential roles in neural patterning. To understand the ...Non-clustered δ1- and δ2-protocadherins, close relatives of clustered protocadherins, function in cell adhesion and motility and play essential roles in neural patterning. To understand the molecular interactions underlying these functions, we used solution biophysics to characterize binding of δ1- and δ2-protocadherins, determined crystal structures of ectodomain complexes from each family, and assessed ectodomain assembly in reconstituted intermembrane junctions by cryoelectron tomography (cryo-ET). Homophilic trans (cell-cell) interactions were preferred for all δ-protocadherins, with additional weaker heterophilic interactions observed exclusively within each subfamily. As expected, δ1- and δ2-protocadherin trans dimers formed through antiparallel EC1-EC4 interfaces, like clustered protocadherins. However, no ectodomain-mediated cis (same-cell) interactions were detectable in solution; consistent with this, cryo-ET of reconstituted junctions revealed dense assemblies lacking the characteristic order observed for clustered protocadherins. Our results define non-clustered protocadherin binding properties and their structural basis, providing a foundation for interpreting their functional roles in neural patterning.
履歴
登録
2020年1月7日
登録サイト: RCSB / 処理サイト: RCSB
改定 1.0
2020年3月11日
Provider: repository / タイプ: Initial release
改定 2.0
2020年4月8日
Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Derived calculations / Non-polymer description / Refinement description / Structure summary カテゴリ: atom_site / atom_site_anisotrop ...atom_site / atom_site_anisotrop / atom_type / chem_comp / database_PDB_caveat / entity / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_refine_tls / pdbx_refine_tls_group / pdbx_struct_assembly_gen / pdbx_struct_conn_angle / pdbx_struct_sheet_hbond / pdbx_validate_chiral / pdbx_validate_close_contact / pdbx_validate_torsion / refine / refine_hist / refine_ls_restr / refine_ls_shell / reflns / software / struct / struct_asym / struct_conn / struct_mon_prot_cis / struct_site / struct_site_gen Item: _atom_site_anisotrop.U[1][1] / _atom_site_anisotrop.U[1][2] ..._atom_site_anisotrop.U[1][1] / _atom_site_anisotrop.U[1][2] / _atom_site_anisotrop.U[1][3] / _atom_site_anisotrop.U[2][2] / _atom_site_anisotrop.U[2][3] / _atom_site_anisotrop.U[3][3] / _atom_site_anisotrop.id / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.type / _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_assembly_gen.asym_id_list / _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_mean / _refine.ls_R_factor_R_free / _refine.ls_R_factor_R_work / _refine.ls_R_factor_obs / _refine.ls_percent_reflns_R_free / _refine.overall_SU_ML / _refine.pdbx_overall_phase_error / _refine_hist.number_atoms_solvent / _refine_hist.number_atoms_total / _refine_hist.pdbx_number_atoms_ligand / _refine_ls_restr.dev_ideal / _refine_ls_restr.number / _refine_ls_shell.R_factor_R_free / _refine_ls_shell.R_factor_R_work / _refine_ls_shell.d_res_high / _refine_ls_shell.d_res_low / _reflns.B_iso_Wilson_estimate / _reflns.details / _software.classification / _software.name / _struct.title / _struct_conn.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_mon_prot_cis.pdbx_omega_angle 解説: Chirality error 詳細: HOH A 808 (B factor near zero) replaced with Na atom prior to final refinement run HOH A 813 (B factor near zero) replaced with Cl atom prior to final refinement run MAN A 721 (chirality ...詳細: HOH A 808 (B factor near zero) replaced with Na atom prior to final refinement run HOH A 813 (B factor near zero) replaced with Cl atom prior to final refinement run MAN A 721 (chirality error) removed prior to final refinement run (poor density for carbohydrate and prone to refining to an unrealistic position in phenix.refine) Provider: author / タイプ: Coordinate replacement
温度: 296 K / 手法: 蒸気拡散法, ハンギングドロップ法 / pH: 5 詳細: 0.22M CaCl2, 0.1M Na Acetate pH 5.0 with 30% (v/v) glycerol as cryoprotectant and glutaraldehyde (0.5% v/v) added to the reservoir after crystal formation to aid crystal stability by cross-linking
プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray
放射波長
波長: 0.9792 Å / 相対比: 1
反射
解像度: 3.298→40 Å / Num. obs: 19779 / % possible obs: 99.7 % / 冗長度: 12.9 % / Biso Wilson estimate: 62.4073673952 Å2 詳細: The structure factor data file contains both spherically and ellipsoidally truncated datasets: the completeness of the spherical dataset is 99.7%; the completeness of the ellipsoidal dataset ...詳細: The structure factor data file contains both spherically and ellipsoidally truncated datasets: the completeness of the spherical dataset is 99.7%; the completeness of the ellipsoidal dataset (the one used in refinement) is 64.28% with respect to the total possible measurable reflections in a sphere out to 3.3A or 92.1% with respect to the total possible within the ellipsoid used for truncation (statistic from staraniso output). CC1/2: 1 / Rmerge(I) obs: 0.139 / Rpim(I) all: 0.04 / Rrim(I) all: 0.145 / Net I/σ(I): 10.7