9nvv

Cryo-EM structure of V2 apex germline-targeting HIV Env trimer Q23-APEX-GT2

Method: ELECTRON MICROSCOPY

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

HIV envelope gp120

Human immunodeficiency virus 1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Homooligomer	Protein 6 其他Polymer 37	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 28 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 7 ;alpha-D-mannopyranose-(1-3)-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-(1-6)]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 × 32	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	O55774_HV1
Isoform	—
PDB entities	1, 2
Chains and sequence ranges	Author chain b； PDBConstruct 1–579； UniProt 30–584 Author chain d； PDBConstruct 1–579； UniProt 30–584 Author chain f； PDBConstruct 1–579； UniProt 30–584 Author chain c； PDBConstruct 1–153； UniProt 502–654 Author chain e； PDBConstruct 1–153； UniProt 502–654 Author chain g； PDBConstruct 1–153； UniProt 502–654

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	9nvv
Deposition date deposition_date	2025-03-21
Structure title title	Cryo-EM structure of V2 apex germline-targeting HIV Env trimer Q23-APEX-GT2
Keywords keywords	HIV, VIRAL PROTEIN, GERMLINE-TARGETING, IMMUNOGEN, VIRAL PROTEIN-IMMUNE SYSTEM complex; VIRAL PROTEIN/IMMUNE SYSTEM
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.

9nvv__assembly_1__model_1

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

Download this curve (.dat)

9nvv__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9nvv__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	41.49 Å
Rg (electron density)	40.51 Å
Total Rg	40.97 Å
Atom count	15284
Residues	1716
Excluded volume	272050 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9nvv__assembly_1__model_1`	hexameric （6）	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 (7)

Entity 1 Entity 1 polymer

Description description	HIV envelope gp120
Molecular weight formula_weight	85350.1 kDa
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	b,d,f
Atom count atom_count	15284

AENLWVTVYYGVPVWRDAETTLFCASDAKAYETEKHNVWATHACVPTDPNPQEIHLDNVTEKFNMWKNNMVEQMHTDIISLWDQSLKPCVKLTPLCVTLHCRNVTSVNTTGDREELKNCTFNMTTELRDKRQKVYSLFYRLDIVPINENQGSEYRLINCNTSACTQACPKVSFEPIPIHYCAPAGFAILKCKDEGFNGTGLCKNVSTVQCTHGIKPVVSTQLLLNGSLAEKNITIRSENITNNAKIIIVQLVQPVTIKCIRPNNYTRKSIRIGPGQAFYAMGDIIGDIRQAHCNVSRSRWNKTLQEVAEKLRTYFGNKTIIFANSSGGDLEITTHSFNCGGEFFYCNTSGLFNSTWYVNSTWNDTDSTQESNDTITLPCRIKQIINMWQRAGQCMYAPPIPGVIKCESNITGLLLTRDGGKDNNVNETFRPGGGDMRDNWRSELYKYKVVEIEPLGVAPTRCKRRVVEGGGGSGGGGSFEPIPIHYCAPAGFAILKCKDEGFNGTGLCKNVSTVQCTHGIKPVVSTQLLLNGSLAEKNITIRSENITNNAKIIIVQLVQPVTIKCIRPNNYTRKSIRIGPGQAFYAMGDIIGDIRQAHCNVSRSRWNKTLQEVAEKLRTYFGNKTIIFANSSGGDLEITTHSFNCGGEFFYCNTSGLFNSTWYVNSTWNSNDTITLPCRIKQIINMWQRAGQCMYAPPIPGVIKCESNITGLLLTRDGGKDNNVNETFRPGGGDMRDNWRSELYKYKVVEIEPLGVAPTRCKR

Source Source

Source organism organism	Human immunodeficiency virus 1
NCBI taxonomy ID ncbi_taxonomy_id	11676
Host organism host_organism	Homo sapiens

Entity 2 Entity 2 polymer

Description description	HIV envelope gp41 ectodomain
Molecular weight formula_weight	17205.7 kDa
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	c,e,g

AVGIGAVRRGFLGAAGSTMGAASITLTVQARQLLSGIVQPQNNLLRAPEAQQHLLKLGVWGIKQLQARVLAVERYLRDQQLLGIWGCSGKLICCTNVPWNSSWSNKSLDEIWNNMTWLQWDKEIGNYTQLIYRLIEESQNQQEKNEKELLALD

Source Source

Source organism organism	Human immunodeficiency virus 1
NCBI taxonomy ID ncbi_taxonomy_id	11676
Host organism host_organism	Homo sapiens

Entity 3 Entity 3 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	28

Entity 4 Entity 4 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	7

Entity 5 Entity 5 branched

Description description	;alpha-D-mannopyranose-(1-3)-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	1

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	1

Entity 7 Entity 7 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	syn
Copy count entity_count	32

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

Resolution resolution	2.90 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	101320

Cryo-EM structure of V2 apex germline-targeting HIV Env trimer Q23-APEX-GT2

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

HIV envelope gp120

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

9nvv__assembly_1__model_1

9nvv__assembly_1__model_1 | I(q)

9nvv__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 (7)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 branched

Entity 4 Entity 4 branched

Entity 5 Entity 5 branched

Entity 6 Entity 6 branched

Entity 7 Entity 7 non-polymer

7. Citations (1)

Cryo-EM structure of V2 apex germline-targeting HIV Env trimer Q23-APEX-GT2

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

HIV envelope gp120

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

9nvv__assembly_1__model_1

9nvv__assembly_1__model_1 | I(q)

9nvv__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 (7)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 branched

Entity 4 Entity 4 branched

Entity 5 Entity 5 branched

Entity 6 Entity 6 branched

Entity 7 Entity 7 non-polymer

7. Citations (1)