SAXSdb — 7wxz

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1. Protein Identity and Related Structures Protein Identity & Related Structures

;Spike protein S2' ;

Severe acute respiratory syndrome coronavirus 2

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	SPIKE_SARS2
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–77； UniProt 912–988 Author chain A； PDBConstruct 133–209； UniProt 912–988 Author chain A； PDBConstruct 83–126； UniProt 1163–1206 Author chain B； PDBConstruct 1–77； UniProt 912–988 Author chain B； PDBConstruct 133–209； UniProt 912–988 Author chain B； PDBConstruct 83–126； UniProt 1163–1206 Author chain C； PDBConstruct 1–77； UniProt 912–988 Author chain C； PDBConstruct 133–209； UniProt 912–988 Author chain C； PDBConstruct 83–126； UniProt 1163–1206 Author chain D； PDBConstruct 1–77； UniProt 912–988 Author chain D； PDBConstruct 133–209； UniProt 912–988 Author chain D； PDBConstruct 83–126； UniProt 1163–1206

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	7wxz
Deposition date deposition_date	2022-02-15
Structure title title	Crystal structure of the recombinant protein HR121 from the S2 protein of SARS-CoV-2
Keywords keywords	SARS-CoV-2, S2, recombinant protein, HR121, fusion intermediate, VIRAL PROTEIN; VIRAL PROTEIN
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

7wxz__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

7wxz__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7wxz__assembly_2__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	30.10 Å
Rg (electron density)	30.79 Å
Total Rg	30.80 Å
Atom count	2728
Residues	363
Excluded volume	48416 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7wxz__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`7wxz__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (2)

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Unit-cell length a length_a	65.160 Å
Unit-cell length b length_b	51.730 Å
Unit-cell length c length_c	119.160 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	95.33 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	2.410 Å
Low-resolution limit resolution_low	32.460 Å
R factor r_factor	0.2511
R_work r_work	0.2490
R_free r_free	0.2937

Description description	;Spike protein S2' ;
Molecular weight formula_weight	22206.7 kDa
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	5563

Crystal structure of the recombinant protein HR121 from the S2 protein of SARS-CoV-2

1. Protein Identity and Related Structures Protein Identity & Related Structures

;Spike protein S2' ;

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

7wxz__assembly_2__model_1

7wxz__assembly_2__model_1 | I(q)

7wxz__assembly_2__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

7. Citations (1)

Source organism organism	Severe acute respiratory syndrome coronavirus 2
Common name common_name	2019-nCoV,SARS-CoV-2
NCBI taxonomy ID ncbi_taxonomy_id	2697049
Host organism host_organism	Severe acute respiratory syndrome coronavirus 2

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	5

Crystal structure of the recombinant protein HR121 from the S2 protein of SARS-CoV-2

1. Protein Identity and Related Structures Protein Identity & Related Structures

;Spike protein S2' ;

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

7wxz__assembly_2__model_1

7wxz__assembly_2__model_1 | I(q)

7wxz__assembly_2__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

7. Citations (1)