9oic

Structure of shaker-IR-I384R

Method: ELECTRON MICROSCOPY D_max: 104.7 Å Quality: GOOD

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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1. 结构基本信息 1. Structure Basics

条目编号 entry_id	9oic
沉积日期 deposition_date	2025-05-06
最后修订 last_revision	2025-12-03
结构标题 title	Structure of shaker-IR-I384R
关键词 keywords	Tetrameric Ion Channel, Voltage-gated Potassium Channel, Closed State, MEMBRANE PROTEIN; MEMBRANE PROTEIN
实验方法 method	ELECTRON MICROSCOPY

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

回转半径 Rg (Guinier) rg_guinier	33.41 Å
回转半径 Rg (电子) rg_electron	32.79 Å
零角强度 I(0) i0	138040000.00
分子量 molecular_weight	107330.0 kDa
排除体积 excluded_volume	140070 Å³
包络体积 envelope_volume	182230 Å³
水化壳体积 shell_volume	46002 Å³
包络直径 envelope_diameter	110.0 Å
壳层 Rg shell_rg	39.77 Å
包络 Rg envelope_rg	32.90 Å
形状 Rg shape_rg	32.79 Å
总 Rg total_rg	33.44 Å
总原子数 total_atoms	7594
残基数 n_residues	944
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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3. P(r) 距离分布 (GNOM 反演) 3. P(r) Analysis (GNOM)

最大尺寸 Dmax dmax	104.7 Å
Rg (实空间) rg_real	33.28 Å
Rg 误差 (实空间) rg_real_error	0.80 Å
I(0) (实空间) i0_real	1.3800e+08
I(0) 误差 (实空间) i0_real_error	2.3470e+06
Rg (倒空间) rg_reciprocal	33.36 Å
I(0) (倒空间) i0_reciprocal	138000000.0000
解质量估计 total_estimate	0.8857
解质量评级 solution_quality	GOOD a GOOD solution
P(r) 峰数 n_peaks	2
主峰位置 r_peak_primary	44.6 Å
偏度 Skewness skewness	0.174
峰度 Kurtosis kurtosis	-0.337
角度范围 angular_range	— – 0.2350 Å⁻¹
当前正则化参数 α current_alpha	0.0000
最高正则化参数 α highest_alpha	15030000.0000
实空间数据点数 n_real_points	48
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.879; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.994; Smooth: 0.880

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

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5. 实体与聚合体信息 (2)

Entity 1 polymer

描述 description	Potassium voltage-gated channel protein Shaker
分子量 formula_weight	69361.2 kDa
突变 mutation	I384R
来源方法 src_method	man
拷贝数 entity_count	4

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	A,B,C,D
原子数 atom_count	7594

MAAVALREQQLQRNSLDGYGSLPKLSSQDEEGGAGHGFGGGPQHFEPIPHDHDFCERVVINVSGLRFETQLRTLNQFPDTLLGDPARRLRYFDPLRNEYFFDRSRPSFDAILYYYQSGGRLRRPVNVPLDVFSEEIKFYELGDQAINKFREDEGFIKEEERPLPDNEKQRKVWLLFEYPESSQAARVVAIISVFVILLSIVIFCLETLPEFKHYKVFNTTTNGTKIEEDEVPDITDPFFLIETLCIIWFTFELTVRFLACPNKLNFCRDVMNVIDIIAIIPYFITLATVVAEEEDTLNLPKAPVSPQDKSSNQAMSLAILRVIRLVRVFRIFKLSRHSKGLQRLGRTLKASMRELGLLIFFLFIGVVLFSSAVYFAEAGSENSFFKSIPDAFWWAVVTMTTVGYGDMTPVGVWGKIVGSLCAIAGVLTIALPVPVIVSNFNYFYHRETDQEEMQSQNFNHVTSCPYLPGTLVGQHMKKSSLSESSSDMMDLDDGVESTPGLTETHPGRSAVAPFLGAQQQQQQPVASSLSMSIDKQLQHPLQQLTQTQLYQQQQQQQQQQQNGFKQQQQQTQQQLQQQQSHTINASAAAATSGSGSSGLTMRHNNALAVSIETDV

来源 Source

来源生物 organism	Drosophila melanogaster
通用名 common_name	fruit fly
NCBI 分类编号 ncbi_taxonomy_id	7227
宿主生物 host_organism	Homo sapiens

Entity 2 non-polymer

描述 description	POTASSIUM ION
分子量 formula_weight	39.1 kDa
来源方法 src_method	syn
拷贝数 entity_count	2

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7. 引用文献 (1)

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分辨率 resolution	3.48 Å
分辨率测定方法 resolution_method	—
颗粒数 num_particles	80704

fit	/app/data/saxs_computation/oi/9oic/9oic.fit
pddf	/app/data/pr_computation/oi/9oic/9oic.pr.out
profile	/app/data/saxs_computation/oi/9oic/9oic.dat