1j88

HUMAN HIGH AFFINITY FC RECEPTOR FC(EPSILON)RI(ALPHA), TETRAGONAL CRYSTAL FORM 1

Method: X-RAY DIFFRACTION D_max: 123.7 Å Quality: EXCELLENT

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

HIGH AFFINITY IMMUNOGLOBULIN EPSILON RECEPTOR ALPHA-SUBUNIT

Homo sapiens

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	其他组合单体蛋白 × 1 其他聚合物 4 PDB 声明：monomeric（1）与蛋白拷贝数一致	链 A； UniProt 26–197	片段：EXTRACELLULAR FRAGMENT	beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ;alpha-D-mannopyranose-(1-3)-alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	X-RAY DIFFRACTION X-ray结晶条件：VAPOR DIFFUSION, HANGING DROP；pH 5.6；293 K；PEG 10000, Ammonium Citrate, Sodium Chloride, pH 5.6, VAPOR DIFFUSION, HANGING DROP at 293K, VAPOR DIFFUSION, HANGING DROP	分辨率 3.20 Å R-free 0.310
2	其他组合单体蛋白 × 1 其他聚合物 2 PDB 声明：monomeric（1）与蛋白拷贝数一致	链 B； UniProt 26–197	片段：EXTRACELLULAR FRAGMENT	beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4	X-RAY DIFFRACTION X-ray结晶条件：VAPOR DIFFUSION, HANGING DROP；pH 5.6；293 K；PEG 10000, Ammonium Citrate, Sodium Chloride, pH 5.6, VAPOR DIFFUSION, HANGING DROP at 293K, VAPOR DIFFUSION, HANGING DROP	分辨率 3.20 Å R-free 0.310
3	其他组合单体蛋白 × 1 其他聚合物 3 PDB 声明：monomeric（1）与蛋白拷贝数一致	链 C； UniProt 26–197	片段：EXTRACELLULAR FRAGMENT	beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	X-RAY DIFFRACTION X-ray结晶条件：VAPOR DIFFUSION, HANGING DROP；pH 5.6；293 K；PEG 10000, Ammonium Citrate, Sodium Chloride, pH 5.6, VAPOR DIFFUSION, HANGING DROP at 293K, VAPOR DIFFUSION, HANGING DROP	分辨率 3.20 Å R-free 0.310
4	其他组合单体蛋白 × 1 其他聚合物 3 PDB 声明：monomeric（1）与蛋白拷贝数一致	链 D； UniProt 26–197	片段：EXTRACELLULAR FRAGMENT	beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	X-RAY DIFFRACTION X-ray结晶条件：VAPOR DIFFUSION, HANGING DROP；pH 5.6；293 K；PEG 10000, Ammonium Citrate, Sodium Chloride, pH 5.6, VAPOR DIFFUSION, HANGING DROP at 293K, VAPOR DIFFUSION, HANGING DROP	分辨率 3.20 Å R-free 0.310
5	其他组合单体蛋白 × 1 其他聚合物 1 PDB 声明：monomeric（1）与蛋白拷贝数一致	链 E； UniProt 26–197	片段：EXTRACELLULAR FRAGMENT	;alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4	X-RAY DIFFRACTION X-ray结晶条件：VAPOR DIFFUSION, HANGING DROP；pH 5.6；293 K；PEG 10000, Ammonium Citrate, Sodium Chloride, pH 5.6, VAPOR DIFFUSION, HANGING DROP at 293K, VAPOR DIFFUSION, HANGING DROP	分辨率 3.20 Å R-free 0.310

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。

其他 PDB	相对当前条目 1J88	Assembly / 聚集状态	构建体	突变与修饰	配体、离子与非聚合物	实验方法与环境	结构质量
1F2Q CRYSTAL STRUCTURE OF THE HUMAN HIGH-AFFINITY IGE RECEPTOR 提交 2000-05-28	构建体不同配体/离子不同实验环境不同结构质量不同	Assembly 1 其他组合单体；蛋白 × 1 PDB 声明：monomeric	链 A 26–201（176 aa）片段：EXTRACELLULAR DOMAIN	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 8.5；297 K；PEG 4000, Tris, Sodium Acetate, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 297K	分辨率 2.40 Å R-free 0.254
1F6A Structure of the human ige-fc bound to its high affinity receptor fc(epsilon)ri(alpha) 提交 2000-06-20	构建体不同突变/修饰不同聚集状态不同配体/离子不同实验环境不同结构质量不同	Assembly 1 其他组合异源复合物；蛋白 × 3 PDB 声明：trimeric	链 A 26–201（176 aa）片段：EXTRACELLULAR DOMAIN	突变：N74A,N135A,T142A,V143A	SO4 SULFATE ION × 5 CPS 3-[(3-CHOLAMIDOPROPYL)DIMETHYLAMMONIO]-1-PROPANESULFONATE × 5	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 8.5；296 K；Ammonium Sulfate, Tris, CHAPS, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 296K	分辨率 3.50 Å R-free 0.273
1J86 HUMAN HIGH AFFINITY FC RECEPTOR FC(EPSILON)RI(ALPHA), MONOCLINIC CRYSTAL FORM 2 提交 2001-05-20	构建体不同配体/离子不同实验环境不同结构质量不同	Assembly 1 其他组合单体；蛋白 × 1 PDB 声明：monomeric	链 A 26–201（176 aa）片段：EXTRACELLULAR FRAGMENT	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；PEG 4000, HEPES, ISOPROPANOL. pH 7.5, VAPOR DIFFUSION, HANGING DROP at 293K	分辨率 3.20 Å R-free 0.278
1J86 HUMAN HIGH AFFINITY FC RECEPTOR FC(EPSILON)RI(ALPHA), MONOCLINIC CRYSTAL FORM 2 提交 2001-05-20	构建体不同配体/离子不同实验环境不同结构质量不同	Assembly 2 其他组合单体；蛋白 × 1 PDB 声明：monomeric	链 B 26–201（176 aa）片段：EXTRACELLULAR FRAGMENT	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；PEG 4000, HEPES, ISOPROPANOL. pH 7.5, VAPOR DIFFUSION, HANGING DROP at 293K	分辨率 3.20 Å R-free 0.278
1J87 HUMAN HIGH AFFINITY FC RECEPTOR FC(EPSILON)RI(ALPHA), HEXAGONAL CRYSTAL FORM 1 提交 2001-05-20	突变/修饰不同配体/离子不同实验环境不同结构质量不同	Assembly 1 其他组合单体；蛋白 × 1 PDB 声明：monomeric	链 A 26–197（172 aa）片段：EXTRACELLULAR FRAGMENT	突变：I170C	未记录非水小分子	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 5.6；293 K；PEG 4000, Sodium Citrate, Sodium Chloride, HECAMEG, pH 5.6, VAPOR DIFFUSION, HANGING DROP at 293K	分辨率 3.20 Å R-free 0.306
1J89 HUMAN HIGH AFFINITY FC RECEPTOR FC(EPSILON)RI(ALPHA), TETRAGONAL CRYSTAL FORM 2 提交 2001-05-20	实验环境不同结构质量不同	Assembly 1 其他组合单体；蛋白 × 1 PDB 声明：monomeric	链 A 26–197（172 aa）片段：EXTRACELLULAR FRAGMENT	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 5.6；293 K；PEG 10000, Ammonium Citrate, Sodium Chloride, pH 5.6. VAPOR DIFFUSION, HANGING DROP at 293K	分辨率 4.10 Å R-free 0.291
1J89 HUMAN HIGH AFFINITY FC RECEPTOR FC(EPSILON)RI(ALPHA), TETRAGONAL CRYSTAL FORM 2 提交 2001-05-20	实验环境不同结构质量不同	Assembly 2 其他组合单体；蛋白 × 1 PDB 声明：monomeric	链 B 26–197（172 aa）片段：EXTRACELLULAR FRAGMENT	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 5.6；293 K；PEG 10000, Ammonium Citrate, Sodium Chloride, pH 5.6. VAPOR DIFFUSION, HANGING DROP at 293K	分辨率 4.10 Å R-free 0.291
1J89 HUMAN HIGH AFFINITY FC RECEPTOR FC(EPSILON)RI(ALPHA), TETRAGONAL CRYSTAL FORM 2 提交 2001-05-20	实验环境不同结构质量不同	Assembly 3 其他组合单体；蛋白 × 1 PDB 声明：monomeric	链 C 26–197（172 aa）片段：EXTRACELLULAR FRAGMENT	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 5.6；293 K；PEG 10000, Ammonium Citrate, Sodium Chloride, pH 5.6. VAPOR DIFFUSION, HANGING DROP at 293K	分辨率 4.10 Å R-free 0.291
1J89 HUMAN HIGH AFFINITY FC RECEPTOR FC(EPSILON)RI(ALPHA), TETRAGONAL CRYSTAL FORM 2 提交 2001-05-20	实验环境不同结构质量不同	Assembly 4 其他组合单体；蛋白 × 1 PDB 声明：monomeric	链 D 26–197（172 aa）片段：EXTRACELLULAR FRAGMENT	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 5.6；293 K；PEG 10000, Ammonium Citrate, Sodium Chloride, pH 5.6. VAPOR DIFFUSION, HANGING DROP at 293K	分辨率 4.10 Å R-free 0.291
1J89 HUMAN HIGH AFFINITY FC RECEPTOR FC(EPSILON)RI(ALPHA), TETRAGONAL CRYSTAL FORM 2 提交 2001-05-20	实验环境不同结构质量不同	Assembly 5 其他组合单体；蛋白 × 1 PDB 声明：monomeric	链 E 26–197（172 aa）片段：EXTRACELLULAR FRAGMENT	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 5.6；293 K；PEG 10000, Ammonium Citrate, Sodium Chloride, pH 5.6. VAPOR DIFFUSION, HANGING DROP at 293K	分辨率 4.10 Å R-free 0.291
1RPQ High Affinity IgE Receptor (alpha chain) Complexed with Tight-Binding E131 'zeta' Peptide from Phage Display 提交 2003-12-03	构建体不同聚集状态不同配体/离子不同实验环境不同结构质量不同	Assembly 1 其他组合异源复合物；蛋白 × 2 PDB 声明：dimeric	链 A 26–201（176 aa）片段：alpha chain extracellular domains	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 SO4 SULFATE ION × 1	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 4.2；292 K；PEG 2000 monomethyl ether, ammonium sulfate, sodium citrate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 292K	分辨率 3.00 Å R-free 0.349
1RPQ High Affinity IgE Receptor (alpha chain) Complexed with Tight-Binding E131 'zeta' Peptide from Phage Display 提交 2003-12-03	构建体不同聚集状态不同配体/离子不同实验环境不同结构质量不同	Assembly 2 其他组合异源复合物；蛋白 × 2 PDB 声明：dimeric	链 B 26–201（176 aa）片段：alpha chain extracellular domains	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 4.2；292 K；PEG 2000 monomethyl ether, ammonium sulfate, sodium citrate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 292K	分辨率 3.00 Å R-free 0.349
1RPQ High Affinity IgE Receptor (alpha chain) Complexed with Tight-Binding E131 'zeta' Peptide from Phage Display 提交 2003-12-03	构建体不同聚集状态不同配体/离子不同实验环境不同结构质量不同	Assembly 3 其他组合异源复合物；蛋白 × 2 PDB 声明：dimeric	链 C 26–201（176 aa）片段：alpha chain extracellular domains	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 CIT CITRIC ACID × 1	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 4.2；292 K；PEG 2000 monomethyl ether, ammonium sulfate, sodium citrate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 292K	分辨率 3.00 Å R-free 0.349
1RPQ High Affinity IgE Receptor (alpha chain) Complexed with Tight-Binding E131 'zeta' Peptide from Phage Display 提交 2003-12-03	构建体不同聚集状态不同配体/离子不同实验环境不同结构质量不同	Assembly 4 其他组合异源复合物；蛋白 × 2 PDB 声明：dimeric	链 D 26–201（176 aa）片段：alpha chain extracellular domains	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 SO4 SULFATE ION × 1 CIT CITRIC ACID × 1	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 4.2；292 K；PEG 2000 monomethyl ether, ammonium sulfate, sodium citrate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 292K	分辨率 3.00 Å R-free 0.349
1RPQ High Affinity IgE Receptor (alpha chain) Complexed with Tight-Binding E131 'zeta' Peptide from Phage Display 提交 2003-12-03	构建体不同突变/修饰不同聚集状态不同配体/离子不同实验环境不同结构质量不同	Assembly 5 其他组合异源复合物；蛋白 × 4 PDB 声明：tetrameric	链 A 26–201（176 aa）片段：alpha chain extracellular domains 链 C 26–201（176 aa）片段：alpha chain extracellular domains	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 SO4 SULFATE ION × 1 CIT CITRIC ACID × 1	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 4.2；292 K；PEG 2000 monomethyl ether, ammonium sulfate, sodium citrate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 292K	分辨率 3.00 Å R-free 0.349
1RPQ High Affinity IgE Receptor (alpha chain) Complexed with Tight-Binding E131 'zeta' Peptide from Phage Display 提交 2003-12-03	构建体不同突变/修饰不同聚集状态不同配体/离子不同实验环境不同结构质量不同	Assembly 6 其他组合异源复合物；蛋白 × 4 PDB 声明：tetrameric	链 B 26–201（176 aa）片段：alpha chain extracellular domains 链 D 26–201（176 aa）片段：alpha chain extracellular domains	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 SO4 SULFATE ION × 1 CIT CITRIC ACID × 1	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, HANGING DROP；pH 4.2；292 K；PEG 2000 monomethyl ether, ammonium sulfate, sodium citrate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 292K	分辨率 3.00 Å R-free 0.349
2Y7Q THE HIGH-AFFINITY COMPLEX BETWEEN IGE AND ITS RECEPTOR FC EPSILON RI 提交 2011-02-01	构建体不同突变/修饰不同聚集状态不同实验环境不同结构质量不同	Assembly 1 其他组合异源复合物；蛋白 × 3 PDB 声明：trimeric	链 A 26–201（176 aa）片段：SOLUBLE EXTRACELLULAR DOMAINS, RESIDUES 26-201	突变：YES	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	X-RAY DIFFRACTION X-ray结晶条件 VAPOR DIFFUSION, SITTING DROP；pH 7；SITTING DROP VAPOR DIFFUSION. RESERVOIR SOLUTION CONTAINED 2.8M SODIUM ACETATE PH 7.	分辨率 3.40 Å R-free 0.292
7SHT Structure of a partially disrupted IgE high affinity receptor complex bound to an omalizumab variant 提交 2021-10-11	构建体不同突变/修饰不同聚集状态不同实验方法不同实验环境不同结构质量不同	Assembly 1 其他组合异源复合物；蛋白 × 7 PDB 声明：heptameric	链 A 30–197（168 aa）片段：extracellular portion	突变：W156C	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM缓冲液 pH 7.5 cryo-EM玻璃化条件冷冻剂 ETHANE	分辨率 7.29 Å
8C1B Focused map for structure of IgE bound to the ectodomain of FceRIa 提交 2022-12-20	构建体不同聚集状态不同实验方法不同实验环境不同结构质量不同	Assembly 1 其他组合异源复合物；蛋白 × 3 PDB 声明：trimeric	链 R 29–197（169 aa）	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM缓冲液 pH 7.5 cryo-EM玻璃化条件冷冻剂 ETHANE	分辨率 3.80 Å
8C1C Structure of IgE bound to the ectodomain of FceRIa 提交 2022-12-20	构建体不同聚集状态不同配体/离子不同实验方法不同实验环境不同结构质量不同	Assembly 1 其他组合异源复合物；蛋白 × 5 PDB 声明：pentameric	链 R 29–199（171 aa）	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM缓冲液 pH 7.5 cryo-EM玻璃化条件冷冻剂 ETHANE	分辨率 4.10 Å
8K7R Human Fc epsilon RI in complex with hIgE Fc (TMD disordered) 提交 2023-07-27	构建体不同聚集状态不同配体/离子不同实验方法不同实验环境不同结构质量不同	Assembly 1 其他组合异源复合物；蛋白 × 3 PDB 声明：trimeric	链 A 1–257（257 aa）	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM缓冲液 pH 7.7 cryo-EM玻璃化条件冷冻剂 ETHANE	分辨率 3.56 Å
8YVU structure of Ige receptor 提交 2024-03-29	构建体不同突变/修饰不同聚集状态不同配体/离子不同实验方法不同实验环境不同结构质量不同	Assembly 1 蛋白异源复合物异源复合物；蛋白 × 8 PDB 声明：octameric	链 A 201–237（37 aa）链 E 201–237（37 aa）	未记录	CLR CHOLESTEROL × 2	ELECTRON MICROSCOPY cryo-EM缓冲液 pH 7.5 cryo-EM玻璃化条件冷冻剂 ETHANE	分辨率 3.90 Å
8YWA The structure of IgE receptor binding to IgE 提交 2024-03-30	构建体不同聚集状态不同配体/离子不同实验方法不同实验环境不同结构质量不同	Assembly 1 蛋白异源复合物异源复合物；蛋白 × 8 PDB 声明：octameric	链 A 26–257（232 aa）	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 9	ELECTRON MICROSCOPY cryo-EM缓冲液 pH 7.5 cryo-EM玻璃化条件冷冻剂 ETHANE	分辨率 3.14 Å
8Z0T Structure of the human ige-fc bound to its high affinity receptor fc(epsilon) 提交 2024-04-10	构建体不同聚集状态不同配体/离子不同实验方法不同实验环境不同结构质量不同	Assembly 1 其他组合异源复合物；蛋白 × 3 PDB 声明：trimeric	链 A 1–257（257 aa）	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5	ELECTRON MICROSCOPY cryo-EM缓冲液 pH 7.4 cryo-EM玻璃化条件冷冻剂 ETHANE	分辨率 3.58 Å
9EQ3 Structure of IgE HMM5 bound to FceRIa cryo-EM class 8 提交 2024-03-20	构建体不同聚集状态不同配体/离子不同实验方法不同实验环境不同结构质量不同	Assembly 1 其他组合异源复合物；蛋白 × 5 PDB 声明：pentameric	链 R 29–199（171 aa）	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8	ELECTRON MICROSCOPY cryo-EM缓冲液 pH 7.5 cryo-EM玻璃化条件冷冻剂 ETHANE	分辨率 6.90 Å
9EQ4 Structure of IgE HMM5 bound to FceRIa cryo-EM class 5 提交 2024-03-20	构建体不同聚集状态不同配体/离子不同实验方法不同实验环境不同结构质量不同	Assembly 1 其他组合异源复合物；蛋白 × 5 PDB 声明：pentameric	链 R 29–199（171 aa）	未记录	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8	ELECTRON MICROSCOPY cryo-EM缓冲液 pH 7.5 cryo-EM玻璃化条件冷冻剂 ETHANE	分辨率 8.40 Å

共 16 个其他 PDB 条目、26 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	FCEA_HUMAN
Isoform	—
PDB实体	1
链与序列区间	作者链 A； PDB构建体 1–172； UniProt 26–197 作者链 B； PDB构建体 1–172； UniProt 26–197 作者链 C； PDB构建体 1–172； UniProt 26–197 作者链 D； PDB构建体 1–172； UniProt 26–197 作者链 E； PDB构建体 1–172； UniProt 26–197

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

P(r) 距离分布 P(r) Distribution

下载 Download SAXS (.dat) P(r) (.pr.out) CIF

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2. 结构基本信息 2. Structure Basics

条目编号 entry_id	1j88
沉积日期 deposition_date	2001-05-20
结构标题 title	HUMAN HIGH AFFINITY FC RECEPTOR FC(EPSILON)RI(ALPHA), TETRAGONAL CRYSTAL FORM 1
关键词 keywords	Immune System, Fc Receptor, IgE receptor, Glycoprotein; IMMUNE SYSTEM
实验方法 method	X-RAY DIFFRACTION

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

回转半径 Rg (Guinier) rg_guinier	37.41 Å
回转半径 Rg (电子) rg_electron	37.08 Å
零角强度 I(0) i0	181501000.00
分子量 molecular_weight	107810.0 kDa
排除体积 excluded_volume	134370 Å³
包络体积 envelope_volume	200030 Å³
水化壳体积 shell_volume	45313 Å³
包络直径 envelope_diameter	130.3 Å
壳层 Rg shell_rg	42.96 Å
包络 Rg envelope_rg	36.08 Å
形状 Rg shape_rg	37.09 Å
总 Rg total_rg	37.49 Å
总原子数 total_atoms	7606
残基数 n_residues	840
球谐函数阶数 n_harmonics	20
q 范围 q_range	— – 0.5000 Å⁻¹
数据点数 n_points	101
壳层类型 shell_type	directional
溶剂电子密度 solvent_density	0.3340 e/Å³
壳层衬度 contrast_shell	0.0300 e/Å³
CRYSOL 版本 crysol_version	4.1.3

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

最大尺寸 Dmax dmax	123.7 Å
Rg (实空间) rg_real	37.31 Å
Rg 误差 (实空间) rg_real_error	1.05 Å
I(0) (实空间) i0_real	1.8150e+08
I(0) 误差 (实空间) i0_real_error	3.0750e+06
Rg (倒空间) rg_reciprocal	37.37 Å
I(0) (倒空间) i0_reciprocal	181500000.0000
解质量估计 total_estimate	0.9010
解质量评级 solution_quality	EXCELLENT a EXCELLENT solution
P(r) 峰数 n_peaks	1
主峰位置 r_peak_primary	120.8 Å
偏度 Skewness skewness	0.178
峰度 Kurtosis kurtosis	-0.543
角度范围 angular_range	— – 0.2100 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	13550000.0000
实空间数据点数 n_real_points	43
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.918; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.954

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

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6. 实体与聚合物信息 Entities & Polymers (6)

实体 1 Entity 1 polymer

描述 description	HIGH AFFINITY IMMUNOGLOBULIN EPSILON RECEPTOR ALPHA-SUBUNIT
分子量 formula_weight	19950.1 kDa
来源方法 src_method	man
拷贝数 entity_count	5

聚合物 Polymer

聚合物类型 type	polypeptide(L)
链编号 strand_id	A,B,C,D,E
原子数 atom_count	7606

VPQKPKVSLNPPWNRIFKGENVTLTCNGNNFFEVSSTKWFHNGSLSEETNSSLNIVNAKFEDSGEYKCQHQQVNESEPVYLEVFSDWLLLQASAEVVMEGQPLFLRCHGWRNWDVYKVIYYKDGEALKYWYENHNISITNATVEDSGTYYCTGKVWQLDYESEPLNITVIKA

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI 分类编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Cricetulus griseus

实体 2 Entity 2 branched

描述 description	beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
分子量 formula_weight	586.5 kDa
来源方法 src_method	man
拷贝数 entity_count	5

实体 3 Entity 3 branched

描述 description	;alpha-D-mannopyranose-(1-3)-alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ;
分子量 formula_weight	748.7 kDa
来源方法 src_method	man
拷贝数 entity_count	1

实体 4 Entity 4 branched

描述 description	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
分子量 formula_weight	424.4 kDa
来源方法 src_method	man
拷贝数 entity_count	6

实体 5 Entity 5 branched

描述 description	;alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ;
分子量 formula_weight	748.7 kDa
来源方法 src_method	man
拷贝数 entity_count	1

实体 6 Entity 6 non-polymer

描述 description	2-acetamido-2-deoxy-beta-D-glucopyranose
分子量 formula_weight	221.2 kDa
来源方法 src_method	man
拷贝数 entity_count	17

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7. 折叠分类 (SCOP + CATH) 20 domains

SCOP 2.08 (10 domains)

结构域编号 domain_id	d1j88a1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.1 — Immunoglobulin
家族 Family family	b.1.1.4 — I set domains

结构域编号 domain_id	d1j88a2
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.1 — Immunoglobulin
家族 Family family	b.1.1.4 — I set domains

结构域编号 domain_id	d1j88b1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.1 — Immunoglobulin
家族 Family family	b.1.1.4 — I set domains

结构域编号 domain_id	d1j88b2
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.1 — Immunoglobulin
家族 Family family	b.1.1.4 — I set domains

结构域编号 domain_id	d1j88c1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.1 — Immunoglobulin
家族 Family family	b.1.1.4 — I set domains

结构域编号 domain_id	d1j88c2
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.1 — Immunoglobulin
家族 Family family	b.1.1.4 — I set domains

结构域编号 domain_id	d1j88d1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.1 — Immunoglobulin
家族 Family family	b.1.1.4 — I set domains

结构域编号 domain_id	d1j88d2
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.1 — Immunoglobulin
家族 Family family	b.1.1.4 — I set domains

结构域编号 domain_id	d1j88e1
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.1 — Immunoglobulin
家族 Family family	b.1.1.4 — I set domains

结构域编号 domain_id	d1j88e2
类 Class class	b — All beta proteins
折叠类型 Fold fold	b.1 — Immunoglobulin-like beta-sandwich
超家族 Superfamily superfamily	b.1.1 — Immunoglobulin
家族 Family family	b.1.1.4 — I set domains

CATH v4.4 (10 domains)

结构域编号 domain_id	1j88A01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1j88A02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1j88B01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1j88B02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1j88C01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1j88C02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1j88D01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1j88D02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1j88E01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

结构域编号 domain_id	1j88E02
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	40 — Immunoglobulin-like
同源超家族 H-superfamily homologous superfamily	10 — Immunoglobulins

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8. 引用文献 (1)

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晶胞边长 a length_a	145.080 Å
晶胞边长 b length_b	145.080 Å
晶胞边长 c length_c	62.740 Å
晶胞夹角 α angle_alpha	90.00 °
晶胞夹角 β angle_beta	90.00 °
晶胞夹角 γ angle_gamma	90.00 °
晶胞分子数 Z z_pdb	20

空间群 space_group	P 43
空间群编号 int_tables_number	78
晶系 crystal_system	—

分辨率 resolution	3.200 Å
最低分辨率 resolution_low	30.690 Å
R 因子 r_factor	0.2620
R_work r_work	0.2620
R_free r_free	0.3100

fit	/app/data/saxs_computation/j8/1j88/1j88.fit
pddf	/app/data/pr_computation/j8/1j88/1j88.pr.out
profile	/app/data/saxs_computation/j8/1j88/1j88.dat