9r1q

Beluga whale coronavirus spike glycoprotein

Method: ELECTRON MICROSCOPY

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

Spike protein

Beluga whale coronavirus SW1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Homooligomer	Protein 3 其他Polymer 48	;alpha-D-mannopyranose-(1-3)-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 ; × 3 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 9 ;alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose ; × 3 ;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 ; × 6 ;alpha-D-mannopyranose-(1-3)-[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 ; × 3 ;alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose ; × 9 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 6 ;beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose ; × 3 alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 30	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	B2BW33_BWCOV
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–1377； UniProt 24–1400 Author chain B； PDBConstruct 1–1377； UniProt 24–1400 Author chain C； PDBConstruct 1–1377； UniProt 24–1400

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	9r1q
Deposition date deposition_date	2025-04-28
Structure title title	Beluga whale coronavirus spike glycoprotein
Keywords keywords	spike, glycoprotein, coronavirus, VIRAL PROTEIN; VIRAL PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

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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.

9r1q__assembly_1__model_1

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

Download this curve (.dat)

9r1q__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9r1q__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	54.53 Å
Rg (electron density)	54.27 Å
Total Rg	54.45 Å
Atom count	38610
Residues	3777
Excluded volume	574690 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9r1q__assembly_1__model_1`	trimeric （3）	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 (12)

Entity 1 Entity 1 polymer

Description description	Spike protein
Molecular weight formula_weight	153930.6 kDa
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	38610

IDEGLWPAGMWYSHLLQENNTYTVAAFQEHAILPSYVNNNWTVITNFTAENATQLEWDDPYYNSTLFSYVNITMVGDNCIGNFTNRTLGELGDIDYFPFNCTNVTNEFRTNYGYFIQNVMVARCLSSLCAVIIPKGRVFFEKNEMWWWSWQDRYQPGNYTFRHERFMSLSQNITVIGLAGNFSLFGLGQTININSASYDWGTVIRGRLDDRICELQMTGADLCNLTRVDTSSDAFYTAGLVRPASAALIADGAYKPIFTGVFHDNETHQVLYENATIKPSVRSFQVKNNDFDALYVGRKEKFSIDAVTIIFRLKETSTYLDLPFCNETRVDKSDKAIIGYLIGGDFYSVDVSSIVIERYNPPQPNATSIPTTISTVSTTTSGWEDLRSLNMSCVRFDYKLKKVMSVPLPMVKAFIIDFKQRQLAIDGFPVGALIADFEFRFSIVAMPQTFISTLNYTTALVTFDKGNVRSVIDCNSEKPFDRLRCDLQTDVVSDGFYPVNIKTNEAKENTTFIDVPATLANLTLEVFVSSPEQSPACVIKSYKCVDTRYFYISDYSYSCAENGIPNDAAGAAYCRGVLDQINNYGVRGMDFKGKCPFAGSKVNSGLTFDKICFGVYEQGCQSDKACRFGFYFDNVQFSQYGNKLYYKPQDLGFIDYQFGTLFKNSLVQSNIIQEGCHDYDIYGYKGTGVVKPFSDYSYLQTGGLIMLDSGGFPSLFRYNFALYEVTQCTREVAQLAVASNNAIGYYLPKQVTIDGVNASTSCNTTGAFKYCYYDDVIHVGRDVSNVTINVCNPSLMMENSHCINIQGNFMVNEPAITFNSTQYQPLLGVSGDVQLPRTLMLHTTTEFIQTHSPKIVIDCTKYVCGSSERCRRILVKYGGFCESIMRLLNGVNMADDVSVTDFLDNFNSFDNISVSLQNLNASFGQFEGYGFQKFLPKSFDFDGSDPRDARSTIEDILFDKVTTVGLGTVDADYDKCTKGLSVADLVCAQYYNGIMVLPGVADAEKMAMYTGALVGGMVLGGITSAAAIPFATQIQARVNYLALTQNAIQENQKIIVQQFNKAIDSMTSAFQSVNEGFSAVSSAITEVQNAVNAQSQALTKLLGQLNYNFGATTSSIKELYERLAPPEADVQVDRLINGRLTALSAFVAARQVEAAKVASQRVLAAEKINECVKSTSNRYGFCGNGAHIISFPQNAPNGMLFVHFSLVPNETITVKGIIGLCLNNSIGIVPAKDRGMFIQCSNGTYCPEFENSFNESKNGNVTFPFAITSREQYNPRQITTGDIQMLTSCNSGYTHIEWSQLPLVAPPYDDFDKEFDKLYEKWNYTLEELEKLNVTFPYLNVSEQIDIINSAMENIKSQIQNLNSSYIDLEWLNKYER

Source Source

Source organism organism	Beluga whale coronavirus SW1
NCBI taxonomy ID ncbi_taxonomy_id	694015
Host organism host_organism	Homo sapiens

Entity 2 Entity 2 branched

Description description	;alpha-D-mannopyranose-(1-3)-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 ;
Molecular weight formula_weight	910.8 kDa
Source method src_method	man
Copy count entity_count	3

Entity 3 Entity 3 branched

Description description	beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	586.5 kDa
Source method src_method	man
Copy count entity_count	9

Entity 4 Entity 4 branched

Description description	;alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose ;
Molecular weight formula_weight	894.8 kDa
Source method src_method	man
Copy count entity_count	3

Entity 5 Entity 5 branched

Description 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 ;
Molecular weight formula_weight	748.7 kDa
Source method src_method	man
Copy count entity_count	6

Entity 6 Entity 6 branched

Description description	;alpha-D-mannopyranose-(1-3)-[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 ;
Molecular weight formula_weight	910.8 kDa
Source method src_method	man
Copy count entity_count	3

Entity 7 Entity 7 branched

Description description	;alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose ;
Molecular weight formula_weight	1057.0 kDa
Source method src_method	man
Copy count entity_count	9

Entity 8 Entity 8 branched

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	424.4 kDa
Source method src_method	man
Copy count entity_count	6

Entity 9 Entity 9 branched

Description description	;beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose ;
Molecular weight formula_weight	732.7 kDa
Source method src_method	man
Copy count entity_count	3

Entity 10 Entity 10 branched

Description description	alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	367.3 kDa
Source method src_method	man
Copy count entity_count	3

Entity 11 Entity 11 branched

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	570.5 kDa
Source method src_method	man
Copy count entity_count	3

Entity 12 Entity 12 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	man
Copy count entity_count	30

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

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

Resolution resolution	2.240 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Resolution resolution	2.24 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	687529

Beluga whale coronavirus spike glycoprotein

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

Spike protein

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

9r1q__assembly_1__model_1

9r1q__assembly_1__model_1 | I(q)

9r1q__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (12)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 branched

Entity 3 Entity 3 branched

Entity 4 Entity 4 branched

Entity 5 Entity 5 branched

Entity 6 Entity 6 branched

Entity 7 Entity 7 branched

Entity 8 Entity 8 branched

Entity 9 Entity 9 branched

Entity 10 Entity 10 branched

Entity 11 Entity 11 branched

Entity 12 Entity 12 non-polymer

7. Citations (1)

Beluga whale coronavirus spike glycoprotein

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

Spike protein

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

9r1q__assembly_1__model_1

9r1q__assembly_1__model_1 | I(q)

9r1q__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (12)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 branched

Entity 3 Entity 3 branched

Entity 4 Entity 4 branched

Entity 5 Entity 5 branched

Entity 6 Entity 6 branched

Entity 7 Entity 7 branched

Entity 8 Entity 8 branched

Entity 9 Entity 9 branched

Entity 10 Entity 10 branched

Entity 11 Entity 11 branched

Entity 12 Entity 12 non-polymer

7. Citations (1)