SAXSdb — 8epq

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1. 结构基本信息 1. Structure Basics

条目编号 entry_id	8epq
沉积日期 deposition_date	2022-10-06
结构标题 title	Cryo-EM structure of SARS-CoV-2 Spike trimer S2D14 with two RBDs exposed
关键词 keywords	Glycoprotein, trimer, VIRAL PROTEIN; VIRAL 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	51.10 Å
回转半径 Rg (电子) rg_electron	50.83 Å
零角强度 I(0) i0	1663350000.00
分子量 molecular_weight	344690.0 kDa
排除体积 excluded_volume	432930 Å³
包络体积 envelope_volume	649150 Å³
水化壳体积 shell_volume	104920 Å³
包络直径 envelope_diameter	182.1 Å
壳层 Rg shell_rg	55.83 Å
包络 Rg envelope_rg	49.77 Å
形状 Rg shape_rg	50.88 Å
总 Rg total_rg	50.84 Å
总原子数 total_atoms	24287
残基数 n_residues	2984
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	171.2 Å
Rg (实空间) rg_real	52.48 Å
Rg 误差 (实空间) rg_real_error	0.64 Å
I(0) (实空间) i0_real	1.6490e+09
I(0) 误差 (实空间) i0_real_error	2.8130e+07
Rg (倒空间) rg_reciprocal	51.16 Å
I(0) (倒空间) i0_reciprocal	1664000000.0000
解质量估计 total_estimate	0.6994
解质量评级 solution_quality	REASONABLE a REASONABLE solution
P(r) 峰数 n_peaks	1
主峰位置 r_peak_primary	60.8 Å
偏度 Skewness skewness	0.415
峰度 Kurtosis kurtosis	-0.124
角度范围 angular_range	— – 0.1550 Å⁻¹
当前正则化参数 α current_alpha	1.3380
最高正则化参数 α highest_alpha	261400000.0000
实空间数据点数 n_real_points	32
GNOM 版本 gnom_version	4.1.3
质量判据 quality_criteria	AN1: 0.000; Oscil: 0.867; Stabil: 0.910; Sysdev: 0.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.778

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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 (4)

Entity 1 polymer

描述 description	Spike glycoprotein
分子量 formula_weight	123913.3 kDa
来源方法 src_method	man
拷贝数 entity_count	3

聚合体 Polymer

聚合体类型 type	polypeptide(L)
链编号 strand_id	A,B,C
原子数 atom_count	24287

AYTNSFTRGVYYPDKVFRSSVLHSTQDLFLPFFSNVTWFHAIHVSGTNGTKRFDNPVLPFNDGVYFASTEKSNIIRGWIFGTTLDSKTQSLLIVNNATNVVIKVCEFQFCNDPFLGVYYHKNNKSWMESEFRVYSSANNCTFEYVSQPFLMDLEGKQGNFKNLREFVFKNIDGYFKIYSKHTPINLVRDLPQGFSALEPLVDLPIGINITRFQTLLALHRSYLTPGDSSSGWTAGAAAYYVGYLQPRTFLLKYNENGTITDAVDCALDPLSETKCTLKSFTVEKGIYQTSNFRVQPTESIVRFPNITNLCPFGEVFNATRFASVYAWNRKRISNCVADYSVLYNSASFSTFKCYGVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGKIADYNYKLPDDFTGCVIAWNSNNLDSKVGGNYNYLYRLFRKSNLKPFERDISTEIYQAGSTPCNGVEGFNCYFPLQSYGFQPTNGVGYQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNFNFNGLTGTGVLTESNKKFLPFQQFGRDIADTTDAVRDPQTLEILDITPCSFGGVSVITPGTNTSNQVAVLYQGVNCTEVPVAIHADQLTPTWRVYSTGSNVFQTRAGCLIGAEHVNNSYECDIPIGAGICASYQTQTNSPGSASSVASQSIIAYTMSLGEENSVAYSNNSIAIPTNFTISVTTEIIPVSMQKVSVDCTMYICGDSEECSNLLLQYGSFCTQLNRALHEIAVEQDKNTQEVFAQVKQIYKTPPIKDFGGFNFSQILPDPSKPSKRSAIEDLLFNKVTLADAGFIKGYGDCLGDIAARDLICAQKFNGLTVLPPLLTDEMIAAYTSALLAGTITAGWTFGAGAALQIPFAMQMAYRFNGIGVTQNVLYENQKLIANQFNKAIGKIQDGLSSTASALGKLQDVVNQNAQALNTLVKQLSSNFGAISSVLNDILSRLDPPEAEVQIDRLINGRLQALNTYVTQQLIRAAEIRASANLAAEKMSECVLGQSKRVDFCGKGYHLMSFPQSAPHGVVFLHVTYVPTQYKNFTTAPAICHNGKAHFPREGVFVSNGTHWFVTQRNFYEPQIITTDNTFVSGDCDVVIGIVNNTVYDPLQPELDS

来源 Source

来源生物 organism	Severe acute respiratory syndrome coronavirus 2
NCBI 分类编号 ncbi_taxonomy_id	2697049
宿主生物 host_organism	Homo sapiens

Entity 2 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	11

Entity 3 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	4

Entity 4 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	syn
拷贝数 entity_count	32

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6. 折叠分类 (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

结构域编号 domain_id	8epqA01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	120 — Jelly Rolls
同源超家族 H-superfamily homologous superfamily	960 — Spike glycoprotein, N-terminal domain

结构域编号 domain_id	8epqB01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	120 — Jelly Rolls
同源超家族 H-superfamily homologous superfamily	960 — Spike glycoprotein, N-terminal domain

结构域编号 domain_id	8epqC01
类 Class class	2 — Mainly Beta
架构 Architecture architecture	60 — Sandwich
拓扑 Topology topology	120 — Jelly Rolls
同源超家族 H-superfamily homologous superfamily	960 — Spike glycoprotein, N-terminal domain

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7. 引用文献 (1)

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晶胞边长 a length_a	1.000 Å
晶胞边长 b length_b	1.000 Å
晶胞边长 c length_c	1.000 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	—

空间群 space_group	P 1
空间群编号 int_tables_number	1
晶系 crystal_system	—

分辨率 resolution	3.30 Å
分辨率测定方法 resolution_method	—
颗粒数 num_particles	47773

fit	/app/data/saxs_computation/ep/8epq/8epq.fit
pddf	/app/data/pr_computation/ep/8epq/8epq.pr.out
profile	/app/data/saxs_computation/ep/8epq/8epq.dat

Cryo-EM structure of SARS-CoV-2 Spike trimer S2D14 with two RBDs exposed

SAXS 散射曲线 SAXS Profile

P(r) 距离分布 P(r) Distribution