5vn3

Cryo-EM model of B41 SOSIP.664 in complex with soluble CD4 (D1-D2) and fragment antigen binding variable domain of 17b

Method: ELECTRON MICROSCOPY

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

Envelope glycoprotein gp160

Human immunodeficiency virus 1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Heteromer	Protein 15 其他Polymer 33	17b Fab light chain × 3 Envelope glycoprotein gp160 × 3 （B3UES2） T-cell surface glycoprotein CD4 × 3 （P01730） 17b Fab heavy chain × 3 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 12 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 12 ;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-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-(1-6)-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)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 24	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	B3UEZ6_9HIV1
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain A； PDBConstruct 1–153； UniProt 516–668 Author chain B； PDBConstruct 1–153； UniProt 516–668 Author chain D； PDBConstruct 1–153； UniProt 516–668

Envelope glycoprotein gp160

Human immunodeficiency virus 1

UniProt B3UES2

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Heteromer	Protein 15 其他Polymer 33	17b Fab light chain × 3 Envelope glycoprotein gp160 × 3 （B3UEZ6） T-cell surface glycoprotein CD4 × 3 （P01730） 17b Fab heavy chain × 3 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 12 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 12 ;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-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-(1-6)-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)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 24	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	B3UES2_9HIV1
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain G； PDBConstruct 36–516； UniProt 29–509 Author chain I； PDBConstruct 36–516； UniProt 29–509 Author chain J； PDBConstruct 36–516； UniProt 29–509

T-cell surface glycoprotein CD4

Homo sapiens

UniProt P01730

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Heteromer	Protein 15 其他Polymer 33	17b Fab light chain × 3 Envelope glycoprotein gp160 × 3 （B3UEZ6） Envelope glycoprotein gp160 × 3 （B3UES2） 17b Fab heavy chain × 3 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 12 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 12 ;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-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-(1-6)-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)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 3 2-acetamido-2-deoxy-beta-D-glucopyranose × 24	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CD4_HUMAN
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain C； PDBConstruct 1–183； UniProt 26–208 Author chain E； PDBConstruct 1–183； UniProt 26–208 Author chain F； PDBConstruct 1–183； UniProt 26–208

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	5vn3
Deposition date deposition_date	2017-04-28
Structure title title	Cryo-EM model of B41 SOSIP.664 in complex with soluble CD4 (D1-D2) and fragment antigen binding variable domain of 17b
Keywords keywords	Viral fusion, HIV-1, envelope glycoprotein, CD4 receptor binding, IMMUNE SYSTEM; 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.

5vn3__assembly_1__model_1

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

Download this curve (.dat)

5vn3__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

5vn3__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	54.90 Å
Rg (electron density)	54.50 Å
Total Rg	54.69 Å
Atom count	23727
Residues	2814
Excluded volume	421530 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`5vn3__assembly_1__model_1`	pentadecameric （15）	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 (11)

Entity 1 Entity 1 polymer

Description description	17b Fab light chain
Molecular weight formula_weight	23425.9 kDa
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	L,N,O
Atom count atom_count	23727

ELELTQSPATLSVSPGERATLSCRASESVSSDLAWYQQKPGQAPRLLIYGASTRATGVPARFSGSGSGAEFTLTISSLQSEDFAVYYCQQYNNWPPRYTFGQGTRLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRG

Source Source

Source organism organism	Homo sapiens
Common name common_name	Human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Homo sapiens

Entity 2 Entity 2 polymer

Description description	Envelope glycoprotein gp160
Molecular weight formula_weight	17357.8 kDa
Mutation mutation	I559P, T605C
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,D

AVGLGAFILGFLGAAGSTMGAASMALTVQARLLLSGIVQQQNNLLRAPEAQQHMLQLTVWGIKQLQARVLAVERYLRDQQLLGIWGCSGKIICCTNVPWNDSWSNKTINEIWDNMTWMQWEKEIDNYTQHIYTLLEVSQIQQEKNEQELLELD

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 polymer

Description description	Envelope glycoprotein gp160
Molecular weight formula_weight	57702.5 kDa
Mutation mutation	A501C
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	G,I,J

MDAMKRGLCCVLLLCGAVFVSPSQEIHARFRRGARAAKKWVTVYYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNPQEIVLGNVTENFNMWKNNMVEQMHEDIISLWDQSLKPCVKLTPLCVTLNCNNVNTNNTNNSTNATISDWEKMETGEMKNCSFNVTTSIRDKIKKEYALFYKLDVVPLENKNNINNTNITNYRLINCNTSVITQACPKVSFEPIPIHYCAPAGFAILKCNSKTFNGSGPCTNVSTVQCTHGIRPVVSTQLLLNGSLAEEEIVIRSENITDNAKTIIVQLNEAVEINCTRPNNNTRKSIHIGPGRAFYATGDIIGNIRQAHCNISKARWNETLGQIVAKLEEQFPNKTIIFNHSSGGDPEIVTHSFNCGGEFFYCNTTPLFNSTWNNTRTDDYPTGGEQNITLQCRIKQIINMWQGVGKAMYAPPIRGQIRCSSNITGLLLTRDGGRDQNGTETFRPGGGNMRDNWRSELYKYKVVKIEPLGIAPTACKRRV

Source Source

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

Entity 4 Entity 4 polymer

Description description	T-cell surface glycoprotein CD4
Molecular weight formula_weight	20503.3 kDa
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,E,F

KKVVLGKKGDTVELTCTASQKKSIQFHWKNSNQIKILGNQGSFLTKGPSKLNDRADSRRSLWDQGNFPLIIKNLKIEDSDTYICEVEDQKEEVQLLVFGLTANSDTHLLQGQSLTLTLESPPGSSPSVQCRSPRGKNIQGGKTLSVSQLELQDSGTWTCTVLQNQKKVEFKIDIVVLAFQKASNT

Source Source

Source organism organism	Homo sapiens
Common name common_name	Human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Homo sapiens

Entity 5 Entity 5 polymer

Description description	17b Fab heavy chain
Molecular weight formula_weight	24484.5 kDa
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	H,K,M

QVQLLESGAEVKKPGSSVKVSCKASGDTFIRYSFTWVRQAPGQGLEWMGRIITILDVAHYAPHLQGRVTITADKSTSTVYLELRNLRSDDTAVYFCAGVYEGEADEGEYDNNGFLKHWGQGTLVTVTSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPK

Source Source

Source organism organism	Homo sapiens
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Homo sapiens

Entity 6 Entity 6 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
Mutation mutation	I559P, T605C
Source method src_method	man
Copy count entity_count	12

Entity 7 Entity 7 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
Mutation mutation	I559P, T605C
Source method src_method	man
Copy count entity_count	12

Entity 8 Entity 8 branched

Description description	;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-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	1235.1 kDa
Source method src_method	man
Copy count entity_count	3

Entity 9 Entity 9 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
Mutation mutation	I559P, T605C
Source method src_method	man
Copy count entity_count	3

Entity 10 Entity 10 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
Mutation mutation	I559P, T605C
Source method src_method	man
Copy count entity_count	3

Entity 11 Entity 11 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Mutation mutation	I559P, T605C
Source method src_method	man
Copy count entity_count	24

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6. Fold Classification (SCOP + CATH) 12 domains

CATH v4.4 (12 domains)

Domain ID domain_id	5vn3C01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	5vn3C02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	5vn3E01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	5vn3E02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	5vn3F01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	5vn3F02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	5vn3G01
Class class	2 — Mainly Beta
Architecture architecture	170 — Beta Complex
Topology topology	40 — HIV Envelope Protein Gp120; Chain G
Homologous superfamily homologous superfamily	20 — Human immunodeficiency virus 1, Gp160, envelope glycoprotein

Domain ID domain_id	5vn3I01
Class class	2 — Mainly Beta
Architecture architecture	170 — Beta Complex
Topology topology	40 — HIV Envelope Protein Gp120; Chain G
Homologous superfamily homologous superfamily	20 — Human immunodeficiency virus 1, Gp160, envelope glycoprotein

Domain ID domain_id	5vn3J01
Class class	2 — Mainly Beta
Architecture architecture	170 — Beta Complex
Topology topology	40 — HIV Envelope Protein Gp120; Chain G
Homologous superfamily homologous superfamily	20 — Human immunodeficiency virus 1, Gp160, envelope glycoprotein

Domain ID domain_id	5vn3L00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	5vn3N00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	5vn3O00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

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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	3.70 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	46855

Cryo-EM model of B41 SOSIP.664 in complex with soluble CD4 (D1-D2) and fragment antigen binding variable domain of 17b

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

Envelope glycoprotein gp160

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Envelope glycoprotein gp160

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

T-cell surface glycoprotein CD4

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

5vn3__assembly_1__model_1

5vn3__assembly_1__model_1 | I(q)

5vn3__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (11)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 polymer

Polymer Polymer

Source Source

Entity 5 Entity 5 polymer

Polymer Polymer

Source Source

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 non-polymer

6. Fold Classification (SCOP + CATH) 12 domains

CATH v4.4 (12 domains)

7. Citations (1)