2w3m

HUMAN DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH AND FOLATE

Method: X-RAY DIFFRACTION Dmax: 83.5 Å Quality: GOOD

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

DIHYDROFOLATE REDUCTASE

HOMO SAPIENS

UniProt P00374

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 蛋白单体 单体 蛋白 × 1 PDB 声明:monomeric(1) 与蛋白拷贝数一致 链 A; UniProt 1–187 未记录 NDP NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 1 FOL FOLIC ACID × 1 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 8.75;277 K;HUMAN DHFR/FOLATE COMPLEX WAS MIXED WITH NADPH (2 MM FINAL). CRYSTALS WERE GROWN BY HANGING DROP VAPOR DIFFUSION AT 277 K BY MIXING EQUAL VOLUMES OF PROTEIN/NADPH/FOLATE WITH RESERVOIR (24% PEG 4000, 200 MM LI2SO4, 100 MM TRIS.HCL, PH 8.75). TRUNCATED TRIANGULAR CRYSTALS APPEARED SLOWLY, IN ABOUT A MONTH. THE CRYSTAL WAS CRYOPROTECTED WITH 15% GLYCEROL AND FLASH-COOLED IN LIQUID N2. 分辨率 1.60 Å R-free 0.208
2 蛋白单体 单体 蛋白 × 1 PDB 声明:monomeric(1) 与蛋白拷贝数一致 链 B; UniProt 1–187 未记录 NDP NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 1 FOL FOLIC ACID × 1 X-RAY DIFFRACTION X-ray结晶条件:VAPOR DIFFUSION, HANGING DROP;pH 8.75;277 K;HUMAN DHFR/FOLATE COMPLEX WAS MIXED WITH NADPH (2 MM FINAL). CRYSTALS WERE GROWN BY HANGING DROP VAPOR DIFFUSION AT 277 K BY MIXING EQUAL VOLUMES OF PROTEIN/NADPH/FOLATE WITH RESERVOIR (24% PEG 4000, 200 MM LI2SO4, 100 MM TRIS.HCL, PH 8.75). TRUNCATED TRIANGULAR CRYSTALS APPEARED SLOWLY, IN ABOUT A MONTH. THE CRYSTAL WAS CRYOPROTECTED WITH 15% GLYCEROL AND FLASH-COOLED IN LIQUID N2. 分辨率 1.60 Å R-free 0.208

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 88 个其他 PDB 条目、104 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 DYR_HUMAN
Isoform
PDB实体 1
链与序列区间 作者链 A; PDB构建体 1–187; UniProt 1–187 作者链 B; PDB构建体 1–187; UniProt 1–187

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 2w3m

P(r) 距离分布 P(r) Distribution

P(r) distribution for 2w3m
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2. 结构基本信息 2. Structure Basics

条目编号 entry_id2w3m
沉积日期 deposition_date2008-11-13
结构标题 titleHUMAN DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH AND FOLATE
关键词 keywordsNONCLASSICAL ANTIFOLATES, ONE-CARBON METABOLISM, LIPOPHILIC ANTIFOLATES, NADP, REDUCTASE, OXIDOREDUCTASE; OXIDOREDUCTASE
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_guinier25.68
回转半径 Rg (电子) rg_electron25.01
零角强度 I(0) i033128000.00
分子量 molecular_weight44162.0 kDa
排除体积 excluded_volume55187 ų
包络体积 envelope_volume68185 ų
水化壳体积 shell_volume23502 ų
包络直径 envelope_diameter84.9
壳层 Rg shell_rg31.39
包络 Rg envelope_rg25.13
形状 Rg shape_rg25.01
总 Rg total_rg25.77
总原子数 total_atoms3106
残基数 n_residues372
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 dmax83.5
Rg (实空间) rg_real25.78
Rg 误差 (实空间) rg_real_error0.64
I(0) (实空间) i0_real3.3130e+07
I(0) 误差 (实空间) i0_real_error4.5220e+05
Rg (倒空间) rg_reciprocal25.75
I(0) (倒空间) i0_reciprocal33130000.0000
解质量估计 total_estimate0.8761
解质量评级 solution_quality GOOD a GOOD solution
P(r) 峰数 n_peaks2
主峰位置 r_peak_primary24.2
偏度 Skewness skewness0.417
峰度 Kurtosis kurtosis-0.506
角度范围 angular_range— – 0.3100 −1
当前正则化参数 α current_alpha0.0000
最高正则化参数 α highest_alpha9603000.0000
实空间数据点数 n_real_points63
GNOM 版本 gnom_version4.1.3
质量判据 quality_criteria AN1: 0.000; Oscil: 0.834; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.938; Smooth: 0.945

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) 4 domains

SCOP 2.08 (2 domains)

结构域编号 domain_idd2w3ma_
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.71 — Dihydrofolate reductase-like
超家族 Superfamily superfamilyc.71.1 — Dihydrofolate reductase-like
家族 Family familyc.71.1.1 — Dihydrofolate reductases
结构域编号 domain_idd2w3mb_
类 Class classc — Alpha and beta proteins (a/b)
折叠类型 Fold foldc.71 — Dihydrofolate reductase-like
超家族 Superfamily superfamilyc.71.1 — Dihydrofolate reductase-like
家族 Family familyc.71.1.1 — Dihydrofolate reductases

CATH v4.4 (2 domains)

结构域编号 domain_id2w3mA00
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology430 — Dihydrofolate Reductase, subunit A
同源超家族 H-superfamily homologous superfamily10 — Dihydrofolate Reductase, subunit A
结构域编号 domain_id2w3mB00
类 Class class3 — Alpha Beta
架构 Architecture architecture40 — 3-Layer(aba) Sandwich
拓扑 Topology topology430 — Dihydrofolate Reductase, subunit A
同源超家族 H-superfamily homologous superfamily10 — Dihydrofolate Reductase, subunit A

8. 引用文献 (1)

9. 文件与曲线 (10)