1nvx

Structural evidence for feedback activation by RasGTP of the Ras-specific nucleotide exchange factor SOS

Method: X-RAY DIFFRACTION Dmax: 98.0 Å Quality: EXCELLENT

SAXS 散射曲线 SAXS Profile

SAXS profile for 1nvx

P(r) 距离分布 P(r) Distribution

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

条目编号 entry_id1nvx
沉积日期 deposition_date2003-02-04
结构标题 titleStructural evidence for feedback activation by RasGTP of the Ras-specific nucleotide exchange factor SOS
关键词 keywordsProto-oncogene, GTP-binding, Guanine-nucleotide releasing factor, signaling protein; SIGNALING PROTEIN
实验方法 methodX-RAY DIFFRACTION

2. SAXS 参数 (CRYSOL 理论计算) 2. SAXS Parameters (CRYSOL)

回转半径 Rg (Guinier) rg_guinier30.67
回转半径 Rg (电子) rg_electron29.77
零角强度 I(0) i0133263000.00
分子量 molecular_weight91215.0 kDa
排除体积 excluded_volume114120 ų
包络体积 envelope_volume140950 ų
水化壳体积 shell_volume39108 ų
包络直径 envelope_diameter103.1
壳层 Rg shell_rg37.24
包络 Rg envelope_rg29.76
形状 Rg shape_rg29.77
总 Rg total_rg30.46
总原子数 total_atoms6418
残基数 n_residues780
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

3. P(r) 距离分布 (GNOM 反演) 3. P(r) Analysis (GNOM)

最大尺寸 Dmax dmax98.0
Rg (实空间) rg_real30.61
Rg 误差 (实空间) rg_real_error0.62
I(0) (实空间) i0_real1.3330e+08
I(0) 误差 (实空间) i0_real_error1.9490e+06
Rg (倒空间) rg_reciprocal30.64
I(0) (倒空间) i0_reciprocal133300000.0000
解质量估计 total_estimate0.9036
解质量评级 solution_quality EXCELLENT a EXCELLENT solution
P(r) 峰数 n_peaks2
主峰位置 r_peak_primary33.9
偏度 Skewness skewness0.262
峰度 Kurtosis kurtosis-0.509
角度范围 angular_range— – 0.2600 −1
当前正则化参数 α current_alpha0.0000
最高正则化参数 α highest_alpha38460000.0000
实空间数据点数 n_real_points53
GNOM 版本 gnom_version4.1.3
质量判据 quality_criteria AN1: 0.000; Oscil: 0.925; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.968

4. 晶体学与实验 4. Crystallography & Experiment

5. 实体与聚合体信息 (5)

6. 折叠分类 (SCOP + CATH) 7 domains

SCOP 2.08 (3 domains)

结构域编号 domain_idd1nvxq_
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family familyc.37.1.8 — G proteins
结构域编号 domain_idd1nvxr_
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
超家族 Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
家族 Family familyc.37.1.8 — G proteins
结构域编号 domain_idd1nvxs_
类 Class classa — All alpha proteins
折叠类型 Fold folda.117 — Ras GEF
超家族 Superfamily superfamilya.117.1 — Ras GEF
家族 Family familya.117.1.1 — Ras GEF

CATH v4.4 (4 domains)

结构域编号 domain_id1nvxQ00
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
结构域编号 domain_id1nvxR00
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology50 — Rossmann fold
同源超家族 H-superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
结构域编号 domain_id1nvxS01
类 Class class1 — Mainly Alpha
架构 Architecture architecture20 — Up-down Bundle
拓扑 Topology topology870 — Son of sevenless (SoS) protein; Chain S, domain 1
同源超家族 H-superfamily homologous superfamily10 — Son of sevenless (SoS) protein Chain: S domain 1
结构域编号 domain_id1nvxS02
类 Class class1 — Mainly Alpha
架构 Architecture architecture10 — Orthogonal Bundle
拓扑 Topology topology840 — Son of Sevenless (SoS) protein; Chain S, domain 2
同源超家族 H-superfamily homologous superfamily10 — Ras guanine-nucleotide exchange factors catalytic domain

7. 引用文献 (1)

8. 文件与曲线 (10)