1ir1

Crystal Structure of Spinach Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase (Rubisco) Complexed with CO2, Mg2+ and 2-Carboxyarabinitol-1,5-Bisphosphate

Method: X-RAY DIFFRACTION Dmax: 136.7 Å Quality: GOOD

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

Large subunit of Rubisco

物种未注明

UniProt P00875

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 蛋白异源复合物 异源复合物 蛋白 × 16 PDB 声明:hexadecameric(16) 与蛋白拷贝数一致 链 A; UniProt 1–475 链 B; UniProt 1–475 链 C; UniProt 1–475 链 D; UniProt 1–475 非标准单体:是(mmCIF未提供具体位点) Small subunit of Rubisco × 8 (Q43832) MG MAGNESIUM ION × 8 CAP 2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 8 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION;pH 7.9;293 K;PEG4000, MgCl2, NaHCO3, DTT, 2-carboxyarabinitol-1,5-bisphosphate, Bicine, pH 7.9, VAPOR DIFFUSION, temperature 293K 分辨率 1.80 Å R-free 0.179

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 11 个其他 PDB 条目、11 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 RBL_SPIOL
Isoform
PDB实体 1
链与序列区间 作者链 A; PDB构建体 1–475; UniProt 1–475 作者链 B; PDB构建体 1–475; UniProt 1–475 作者链 C; PDB构建体 1–475; UniProt 1–475 作者链 D; PDB构建体 1–475; UniProt 1–475

Small subunit of Rubisco

物种未注明

UniProt Q43832

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 蛋白异源复合物 异源复合物 蛋白 × 16 PDB 声明:hexadecameric(16) 与蛋白拷贝数一致 链 S; UniProt 58–180 链 T; UniProt 58–180 链 U; UniProt 58–180 链 V; UniProt 58–180 非标准单体:是(mmCIF未提供具体位点) Large subunit of Rubisco × 8 (P00875) MG MAGNESIUM ION × 8 CAP 2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 8 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION;pH 7.9;293 K;PEG4000, MgCl2, NaHCO3, DTT, 2-carboxyarabinitol-1,5-bisphosphate, Bicine, pH 7.9, VAPOR DIFFUSION, temperature 293K 分辨率 1.80 Å R-free 0.179

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 7 个其他 PDB 条目、7 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 RBS2_SPIOL
Isoform
PDB实体 2
链与序列区间 作者链 S; PDB构建体 1–123; UniProt 58–180 作者链 T; PDB构建体 1–123; UniProt 58–180 作者链 U; PDB构建体 1–123; UniProt 58–180 作者链 V; PDB构建体 1–123; UniProt 58–180

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 1ir1

P(r) 距离分布 P(r) Distribution

P(r) distribution for 1ir1
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2. 结构基本信息 2. Structure Basics

条目编号 entry_id1ir1
沉积日期 deposition_date2001-08-31
结构标题 titleCrystal Structure of Spinach Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase (Rubisco) Complexed with CO2, Mg2+ and 2-Carboxyarabinitol-1,5-Bisphosphate
关键词 keywordsALPHA/BETA BARREL, LYASE; LYASE
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_guinier43.41
回转半径 Rg (电子) rg_electron43.03
零角强度 I(0) i01049100000.00
分子量 molecular_weight266670.0 kDa
排除体积 excluded_volume332510 ų
包络体积 envelope_volume437960 ų
水化壳体积 shell_volume79895 ų
包络直径 envelope_diameter134.8
壳层 Rg shell_rg51.67
包络 Rg envelope_rg43.10
形状 Rg shape_rg43.03
总 Rg total_rg43.36
总原子数 total_atoms18784
残基数 n_residues2340
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 dmax136.7
Rg (实空间) rg_real43.18
Rg 误差 (实空间) rg_real_error1.11
I(0) (实空间) i0_real1.0490e+09
I(0) 误差 (实空间) i0_real_error2.0730e+07
Rg (倒空间) rg_reciprocal43.41
I(0) (倒空间) i0_reciprocal1049000000.0000
解质量估计 total_estimate0.8970
解质量评级 solution_quality GOOD a GOOD solution
P(r) 峰数 n_peaks1
主峰位置 r_peak_primary60.8
偏度 Skewness skewness0.088
峰度 Kurtosis kurtosis-0.563
角度范围 angular_range— – 0.1800 −1
当前正则化参数 α current_alpha0.0000
最高正则化参数 α highest_alpha279300000.0000
实空间数据点数 n_real_points37
GNOM 版本 gnom_version4.1.3
质量判据 quality_criteria AN1: 0.000; Oscil: 0.915; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.988; Smooth: 0.923

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

6. 实体与聚合物信息 Entities & Polymers (5)

7. 折叠分类 (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

结构域编号 domain_idd1ir1a1
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamilyc.1.14 — RuBisCo, C-terminal domain
家族 Family familyc.1.14.1 — RuBisCo, large subunit, C-terminal domain
结构域编号 domain_idd1ir1a2
类 Class classd — Alpha and beta proteins (a+b)
折叠类型 Fold foldd.58 — Ferredoxin-like
超家族 Superfamily superfamilyd.58.9 — RuBisCO, large subunit, small (N-terminal) domain
家族 Family familyd.58.9.1 — Ribulose 1,5-bisphosphate carboxylase-oxygenase
结构域编号 domain_idd1ir1b1
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamilyc.1.14 — RuBisCo, C-terminal domain
家族 Family familyc.1.14.1 — RuBisCo, large subunit, C-terminal domain
结构域编号 domain_idd1ir1b2
类 Class classd — Alpha and beta proteins (a+b)
折叠类型 Fold foldd.58 — Ferredoxin-like
超家族 Superfamily superfamilyd.58.9 — RuBisCO, large subunit, small (N-terminal) domain
家族 Family familyd.58.9.1 — Ribulose 1,5-bisphosphate carboxylase-oxygenase
结构域编号 domain_idd1ir1c1
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamilyc.1.14 — RuBisCo, C-terminal domain
家族 Family familyc.1.14.1 — RuBisCo, large subunit, C-terminal domain
结构域编号 domain_idd1ir1c2
类 Class classd — Alpha and beta proteins (a+b)
折叠类型 Fold foldd.58 — Ferredoxin-like
超家族 Superfamily superfamilyd.58.9 — RuBisCO, large subunit, small (N-terminal) domain
家族 Family familyd.58.9.1 — Ribulose 1,5-bisphosphate carboxylase-oxygenase
结构域编号 domain_idd1ir1d1
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.1 — TIM beta/alpha-barrel
超家族 Superfamily superfamilyc.1.14 — RuBisCo, C-terminal domain
家族 Family familyc.1.14.1 — RuBisCo, large subunit, C-terminal domain
结构域编号 domain_idd1ir1d2
类 Class classd — Alpha and beta proteins (a+b)
折叠类型 Fold foldd.58 — Ferredoxin-like
超家族 Superfamily superfamilyd.58.9 — RuBisCO, large subunit, small (N-terminal) domain
家族 Family familyd.58.9.1 — Ribulose 1,5-bisphosphate carboxylase-oxygenase
结构域编号 domain_idd1ir1s_
类 Class classd — Alpha and beta proteins (a+b)
折叠类型 Fold foldd.73 — RuBisCO, small subunit
超家族 Superfamily superfamilyd.73.1 — RuBisCO, small subunit
家族 Family familyd.73.1.1 — RuBisCO, small subunit
结构域编号 domain_idd1ir1t_
类 Class classd — Alpha and beta proteins (a+b)
折叠类型 Fold foldd.73 — RuBisCO, small subunit
超家族 Superfamily superfamilyd.73.1 — RuBisCO, small subunit
家族 Family familyd.73.1.1 — RuBisCO, small subunit
结构域编号 domain_idd1ir1u_
类 Class classd — Alpha and beta proteins (a+b)
折叠类型 Fold foldd.73 — RuBisCO, small subunit
超家族 Superfamily superfamilyd.73.1 — RuBisCO, small subunit
家族 Family familyd.73.1.1 — RuBisCO, small subunit
结构域编号 domain_idd1ir1v_
类 Class classd — Alpha and beta proteins (a+b)
折叠类型 Fold foldd.73 — RuBisCO, small subunit
超家族 Superfamily superfamilyd.73.1 — RuBisCO, small subunit
家族 Family familyd.73.1.1 — RuBisCO, small subunit

CATH v4.4 (12 domains)

结构域编号 domain_id1ir1A01
类 Class class3 — Alpha Beta
架构 Architecture architecture30 — 2-Layer Sandwich
拓扑 Topology topology70 — Alpha-Beta Plaits
同源超家族 H-superfamily homologous superfamily150 — RuBisCO large subunit, N-terminal domain
结构域编号 domain_id1ir1A02
类 Class class3 — Alpha Beta
架构 Architecture architecture20 — Alpha-Beta Barrel
拓扑 Topology topology20 — TIM Barrel
同源超家族 H-superfamily homologous superfamily110 — Ribulose bisphosphate carboxylase, large subunit, C-terminal domain
结构域编号 domain_id1ir1B01
类 Class class3 — Alpha Beta
架构 Architecture architecture30 — 2-Layer Sandwich
拓扑 Topology topology70 — Alpha-Beta Plaits
同源超家族 H-superfamily homologous superfamily150 — RuBisCO large subunit, N-terminal domain
结构域编号 domain_id1ir1B02
类 Class class3 — Alpha Beta
架构 Architecture architecture20 — Alpha-Beta Barrel
拓扑 Topology topology20 — TIM Barrel
同源超家族 H-superfamily homologous superfamily110 — Ribulose bisphosphate carboxylase, large subunit, C-terminal domain
结构域编号 domain_id1ir1C01
类 Class class3 — Alpha Beta
架构 Architecture architecture30 — 2-Layer Sandwich
拓扑 Topology topology70 — Alpha-Beta Plaits
同源超家族 H-superfamily homologous superfamily150 — RuBisCO large subunit, N-terminal domain
结构域编号 domain_id1ir1C02
类 Class class3 — Alpha Beta
架构 Architecture architecture20 — Alpha-Beta Barrel
拓扑 Topology topology20 — TIM Barrel
同源超家族 H-superfamily homologous superfamily110 — Ribulose bisphosphate carboxylase, large subunit, C-terminal domain
结构域编号 domain_id1ir1D01
类 Class class3 — Alpha Beta
架构 Architecture architecture30 — 2-Layer Sandwich
拓扑 Topology topology70 — Alpha-Beta Plaits
同源超家族 H-superfamily homologous superfamily150 — RuBisCO large subunit, N-terminal domain
结构域编号 domain_id1ir1D02
类 Class class3 — Alpha Beta
架构 Architecture architecture20 — Alpha-Beta Barrel
拓扑 Topology topology20 — TIM Barrel
同源超家族 H-superfamily homologous superfamily110 — Ribulose bisphosphate carboxylase, large subunit, C-terminal domain
结构域编号 domain_id1ir1S00
类 Class class3 — Alpha Beta
架构 Architecture architecture30 — 2-Layer Sandwich
拓扑 Topology topology190 — Ribulose 1,5 Bisphosphate Carboxylase/Oxygenase
同源超家族 H-superfamily homologous superfamily10 — Ribulose bisphosphate carboxylase, small subunit
结构域编号 domain_id1ir1T00
类 Class class3 — Alpha Beta
架构 Architecture architecture30 — 2-Layer Sandwich
拓扑 Topology topology190 — Ribulose 1,5 Bisphosphate Carboxylase/Oxygenase
同源超家族 H-superfamily homologous superfamily10 — Ribulose bisphosphate carboxylase, small subunit
结构域编号 domain_id1ir1U00
类 Class class3 — Alpha Beta
架构 Architecture architecture30 — 2-Layer Sandwich
拓扑 Topology topology190 — Ribulose 1,5 Bisphosphate Carboxylase/Oxygenase
同源超家族 H-superfamily homologous superfamily10 — Ribulose bisphosphate carboxylase, small subunit
结构域编号 domain_id1ir1V00
类 Class class3 — Alpha Beta
架构 Architecture architecture30 — 2-Layer Sandwich
拓扑 Topology topology190 — Ribulose 1,5 Bisphosphate Carboxylase/Oxygenase
同源超家族 H-superfamily homologous superfamily10 — Ribulose bisphosphate carboxylase, small subunit

8. 引用文献 (1)

9. 文件与曲线 (10)