1fx7

CRYSTAL STRUCTURE OF THE IRON-DEPENDENT REGULATOR (IDER) FROM MYCOBACTERIUM TUBERCULOSIS

Method: X-RAY DIFFRACTION Dmax: 133.4 Å Quality: GOOD

1. 蛋白身份与相关结构 Protein Identity & Related Structures

IRON-DEPENDENT REPRESSOR IDER

Mycobacterium tuberculosis

UniProt P0A672

当前结构中的状态

Assembly 聚集状态 构建体 突变与修饰 配体、离子与共同组分 实验方法与环境 结构质量
1 蛋白同源多聚体 同源多聚体 蛋白 × 2 PDB 声明:dimeric(2) 与蛋白拷贝数一致 链 A; UniProt 1–230 链 B; UniProt 1–230 未记录 SO4 SULFATE ION × 11 CO COBALT (II) ION × 6 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 5.6;293 K;2.0 M lithium sulfate 0.01 M magnesium chloride 0.1 M MES buffer ~0.1 mM 21 bp duplex DNA oligomer, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 20K 分辨率 2.00 Å R-free 0.272
2 蛋白同源多聚体 同源多聚体 蛋白 × 2 PDB 声明:dimeric(2) 与蛋白拷贝数一致 链 C; UniProt 1–230 链 D; UniProt 1–230 未记录 SO4 SULFATE ION × 6 CO COBALT (II) ION × 7 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 5.6;293 K;2.0 M lithium sulfate 0.01 M magnesium chloride 0.1 M MES buffer ~0.1 mM 21 bp duplex DNA oligomer, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 20K 分辨率 2.00 Å R-free 0.272
3 蛋白同源多聚体 同源多聚体 蛋白 × 4 PDB 声明:tetrameric(4) 与蛋白拷贝数一致 链 A; UniProt 1–230 链 B; UniProt 1–230 链 C; UniProt 1–230 链 D; UniProt 1–230 未记录 SO4 SULFATE ION × 17 CO COBALT (II) ION × 13 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 5.6;293 K;2.0 M lithium sulfate 0.01 M magnesium chloride 0.1 M MES buffer ~0.1 mM 21 bp duplex DNA oligomer, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 20K 分辨率 2.00 Å R-free 0.272
4 蛋白同源多聚体 同源多聚体 蛋白 × 4 PDB 声明:tetrameric(4) 与蛋白拷贝数一致 链 A; UniProt 1–230 链 B; UniProt 1–230 链 C; UniProt 1–230 链 D; UniProt 1–230 未记录 SO4 SULFATE ION × 17 CO COBALT (II) ION × 13 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 5.6;293 K;2.0 M lithium sulfate 0.01 M magnesium chloride 0.1 M MES buffer ~0.1 mM 21 bp duplex DNA oligomer, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 20K 分辨率 2.00 Å R-free 0.272
5 蛋白同源多聚体 同源多聚体 蛋白 × 4 PDB 声明:tetrameric(4) 与蛋白拷贝数一致 链 A; UniProt 1–230 链 B; UniProt 1–230 链 C; UniProt 1–230 链 D; UniProt 1–230 未记录 SO4 SULFATE ION × 17 CO COBALT (II) ION × 13 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 5.6;293 K;2.0 M lithium sulfate 0.01 M magnesium chloride 0.1 M MES buffer ~0.1 mM 21 bp duplex DNA oligomer, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 20K 分辨率 2.00 Å R-free 0.272

数据库中的同蛋白其他状态

以下每一行都是同一 UniProt 蛋白在另一个 PDB 条目中的 biological assembly, “相对当前条目”直接指出证据层面的不同;没有差异标签表示当前已读取字段一致。

共 5 个其他 PDB 条目、6 个 assembly。 打开独立比较页并筛选聚集状态

查看构建体与数据证据
UniProt名称 IDER_MYCTU
Isoform
PDB实体 1
链与序列区间 作者链 A; PDB构建体 1–230; UniProt 1–230 作者链 B; PDB构建体 1–230; UniProt 1–230 作者链 C; PDB构建体 1–230; UniProt 1–230 作者链 D; PDB构建体 1–230; UniProt 1–230

页面优先展示蛋白身份、当前 assembly、共同组分、聚集状态和跨 PDB 结构链接。 链映射与序列区间收在“数据证据”中;数据库内部编号、导入时间和 assembly 操作表达式仅用于维护,因此不在读者页面展示。

SAXS 散射曲线 SAXS Profile

SAXS profile for 1fx7

P(r) 距离分布 P(r) Distribution

P(r) distribution for 1fx7
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2. 结构基本信息 2. Structure Basics

条目编号 entry_id1fx7
沉积日期 deposition_date2000-09-25
结构标题 titleCRYSTAL STRUCTURE OF THE IRON-DEPENDENT REGULATOR (IDER) FROM MYCOBACTERIUM TUBERCULOSIS
关键词 keywordsIdeR, DtxR, iron-dependent regulator, Mycobacterium tuberculosis, SIGNALING PROTEIN; SIGNALING PROTEIN
实验方法 methodX-RAY DIFFRACTION

3. SAXS 参数 (CRYSOL 理论计算) 3. SAXS Parameters (CRYSOL)

回转半径 Rg (Guinier) rg_guinier39.81
回转半径 Rg (电子) rg_electron40.22
零角强度 I(0) i0166911000.00
分子量 molecular_weight100250.0 kDa
排除体积 excluded_volume123710 ų
包络体积 envelope_volume171810 ų
水化壳体积 shell_volume37293 ų
包络直径 envelope_diameter136.9
壳层 Rg shell_rg43.50
包络 Rg envelope_rg39.51
形状 Rg shape_rg40.26
总 Rg total_rg40.29
总原子数 total_atoms6969
残基数 n_residues890
球谐函数阶数 n_harmonics20
q 范围 q_range— – 0.5000 −1
数据点数 n_points101
壳层类型 shell_typedirectional
溶剂电子密度 solvent_density0.3340 e/ų
壳层衬度 contrast_shell0.0300 e/ų
CRYSOL 版本 crysol_version4.1.3

4. P(r) 距离分布 (GNOM 反演) 4. P(r) Analysis (GNOM)

最大尺寸 Dmax dmax133.4
Rg (实空间) rg_real40.10
Rg 误差 (实空间) rg_real_error1.65
I(0) (实空间) i0_real1.6690e+08
I(0) 误差 (实空间) i0_real_error3.2220e+06
Rg (倒空间) rg_reciprocal39.93
I(0) (倒空间) i0_reciprocal166900000.0000
解质量估计 total_estimate0.7817
解质量评级 solution_quality GOOD a GOOD solution
P(r) 峰数 n_peaks1
主峰位置 r_peak_primary33.4
偏度 Skewness skewness0.324
峰度 Kurtosis kurtosis-0.746
角度范围 angular_range— – 0.2000 −1
当前正则化参数 α current_alpha0.0000
最高正则化参数 α highest_alpha11520000.0000
实空间数据点数 n_real_points41
GNOM 版本 gnom_version4.1.3
质量判据 quality_criteria AN1: 0.000; Oscil: 0.811; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.726; Smooth: 0.000

5. 晶体学与实验 5. Crystallography & Experiment

6. 实体与聚合物信息 Entities & Polymers (4)

7. 折叠分类 (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

结构域编号 domain_idd1fx7a1
类 Class classa — All alpha proteins
折叠类型 Fold folda.4 — DNA/RNA-binding 3-helical bundle
超家族 Superfamily superfamilya.4.5 — 'Winged helix' DNA-binding domain
家族 Family familya.4.5.24 — Iron-dependent repressor protein
结构域编号 domain_idd1fx7a2
类 Class classa — All alpha proteins
折叠类型 Fold folda.76 — Iron-dependent repressor protein, dimerization domain
超家族 Superfamily superfamilya.76.1 — Iron-dependent repressor protein, dimerization domain
家族 Family familya.76.1.1 — Iron-dependent repressor protein, dimerization domain
结构域编号 domain_idd1fx7a3
类 Class classb — All beta proteins
折叠类型 Fold foldb.34 — SH3-like barrel
超家族 Superfamily superfamilyb.34.1 — C-terminal domain of transcriptional repressors
家族 Family familyb.34.1.2 — FeoA-like
结构域编号 domain_idd1fx7b1
类 Class classa — All alpha proteins
折叠类型 Fold folda.4 — DNA/RNA-binding 3-helical bundle
超家族 Superfamily superfamilya.4.5 — 'Winged helix' DNA-binding domain
家族 Family familya.4.5.24 — Iron-dependent repressor protein
结构域编号 domain_idd1fx7b2
类 Class classa — All alpha proteins
折叠类型 Fold folda.76 — Iron-dependent repressor protein, dimerization domain
超家族 Superfamily superfamilya.76.1 — Iron-dependent repressor protein, dimerization domain
家族 Family familya.76.1.1 — Iron-dependent repressor protein, dimerization domain
结构域编号 domain_idd1fx7b3
类 Class classb — All beta proteins
折叠类型 Fold foldb.34 — SH3-like barrel
超家族 Superfamily superfamilyb.34.1 — C-terminal domain of transcriptional repressors
家族 Family familyb.34.1.2 — FeoA-like
结构域编号 domain_idd1fx7c1
类 Class classa — All alpha proteins
折叠类型 Fold folda.4 — DNA/RNA-binding 3-helical bundle
超家族 Superfamily superfamilya.4.5 — 'Winged helix' DNA-binding domain
家族 Family familya.4.5.24 — Iron-dependent repressor protein
结构域编号 domain_idd1fx7c2
类 Class classa — All alpha proteins
折叠类型 Fold folda.76 — Iron-dependent repressor protein, dimerization domain
超家族 Superfamily superfamilya.76.1 — Iron-dependent repressor protein, dimerization domain
家族 Family familya.76.1.1 — Iron-dependent repressor protein, dimerization domain
结构域编号 domain_idd1fx7c3
类 Class classb — All beta proteins
折叠类型 Fold foldb.34 — SH3-like barrel
超家族 Superfamily superfamilyb.34.1 — C-terminal domain of transcriptional repressors
家族 Family familyb.34.1.2 — FeoA-like
结构域编号 domain_idd1fx7d1
类 Class classa — All alpha proteins
折叠类型 Fold folda.4 — DNA/RNA-binding 3-helical bundle
超家族 Superfamily superfamilya.4.5 — 'Winged helix' DNA-binding domain
家族 Family familya.4.5.24 — Iron-dependent repressor protein
结构域编号 domain_idd1fx7d2
类 Class classa — All alpha proteins
折叠类型 Fold folda.76 — Iron-dependent repressor protein, dimerization domain
超家族 Superfamily superfamilya.76.1 — Iron-dependent repressor protein, dimerization domain
家族 Family familya.76.1.1 — Iron-dependent repressor protein, dimerization domain
结构域编号 domain_idd1fx7d3
类 Class classb — All beta proteins
折叠类型 Fold foldb.34 — SH3-like barrel
超家族 Superfamily superfamilyb.34.1 — C-terminal domain of transcriptional repressors
家族 Family familyb.34.1.2 — FeoA-like

CATH v4.4 (12 domains)

结构域编号 domain_id1fx7A01
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology10 — Arc Repressor Mutant, subunit A
同源超家族 H-superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
结构域编号 domain_id1fx7A02
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology60 — Diphtheria Toxin Repressor; domain 2
同源超家族 H-superfamily homologous superfamily10 — Iron dependent repressor, metal binding and dimerisation domain
结构域编号 domain_id1fx7A03
类 Class class2 — Mainly Beta
架构 Architecture architecture30 — Roll
拓扑 Topology topology30 — SH3 type barrels.
同源超家族 H-superfamily homologous superfamily90 — Ferrous iron transport protein A (FeoA)
结构域编号 domain_id1fx7B01
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology10 — Arc Repressor Mutant, subunit A
同源超家族 H-superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
结构域编号 domain_id1fx7B02
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology60 — Diphtheria Toxin Repressor; domain 2
同源超家族 H-superfamily homologous superfamily10 — Iron dependent repressor, metal binding and dimerisation domain
结构域编号 domain_id1fx7B03
类 Class class2 — Mainly Beta
架构 Architecture architecture30 — Roll
拓扑 Topology topology30 — SH3 type barrels.
同源超家族 H-superfamily homologous superfamily90 — Ferrous iron transport protein A (FeoA)
结构域编号 domain_id1fx7C01
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology10 — Arc Repressor Mutant, subunit A
同源超家族 H-superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
结构域编号 domain_id1fx7C02
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology60 — Diphtheria Toxin Repressor; domain 2
同源超家族 H-superfamily homologous superfamily10 — Iron dependent repressor, metal binding and dimerisation domain
结构域编号 domain_id1fx7C03
类 Class class2 — Mainly Beta
架构 Architecture architecture30 — Roll
拓扑 Topology topology30 — SH3 type barrels.
同源超家族 H-superfamily homologous superfamily90 — Ferrous iron transport protein A (FeoA)
结构域编号 domain_id1fx7D01
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology10 — Arc Repressor Mutant, subunit A
同源超家族 H-superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
结构域编号 domain_id1fx7D02
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology60 — Diphtheria Toxin Repressor; domain 2
同源超家族 H-superfamily homologous superfamily10 — Iron dependent repressor, metal binding and dimerisation domain
结构域编号 domain_id1fx7D03
类 Class class2 — Mainly Beta
架构 Architecture architecture30 — Roll
拓扑 Topology topology30 — SH3 type barrels.
同源超家族 H-superfamily homologous superfamily90 — Ferrous iron transport protein A (FeoA)

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9. 文件与曲线 (10)