2wrh

structure of H1 duck albert hemagglutinin with human receptor

Method: X-RAY DIFFRACTION

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

HEMAGGLUTININ HA1 CHAIN

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 6	N-acetyl-alpha-neuraminic acid × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9WCE0_I76A4
Isoform	—
PDB entities	1, 2
Chains and sequence ranges	Author chain H； PDBConstruct 1–324； UniProt 18–343 Author chain J； PDBConstruct 1–324； UniProt 18–343 Author chain L； PDBConstruct 1–324； UniProt 18–343 Author chain I； PDBConstruct 1–222； UniProt 345–566 Author chain K； PDBConstruct 1–222； UniProt 345–566 Author chain M； PDBConstruct 1–222； UniProt 345–566

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	2wrh
Deposition date deposition_date	2009-09-01
Structure title title	structure of H1 duck albert hemagglutinin with human receptor
Keywords keywords	VIRAL PROTEIN, ENVELOPE PROTEIN, GLYCOPROTEIN, LIPOPROTEIN; 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.

2wrh__assembly_1__model_1

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

Download this curve (.dat)

2wrh__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2wrh__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	41.11 Å
Rg (electron density)	40.77 Å
Total Rg	40.93 Å
Atom count	11332
Residues	1446
Excluded volume	198260 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2wrh__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 (3)

Entity 1 Entity 1 polymer

Description description	HEMAGGLUTININ HA1 CHAIN
Molecular weight formula_weight	35728.9 kDa
Source method src_method	nat
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	H,J,L
Atom count atom_count	11332

DTICVGYHANNSTDTVDTVLEKNVTVTHSVNLLEDSHNGKLCSLGIAPLQLGKCNVAGWLLGNPECDLLLTANSWSYIIETSNSENGTCYPGEFIDYEELREQLSSVSSFEKFEIFPKASSWPNHETKGVTAACSYSGASSFYRNLLWITKKGTSYPKLSKSYTNNKGKEVLVLWGVHHPPSVSEQQSLYQNADAYVSVGSSKYNRRFAPEIAARPKVRGQAGRMNYYWTLLDQGDTITFEATGNLIAPWYAFALNKGSDSGIITSDAPVHNCDTRCQTPHGALNSSLPFQNVHPITIGECPKYVKSTKLRMATGLRNVPSRQS

Entity 2 Entity 2 polymer

Description description	HEMAGGLUTININ HA2 CHAIN
Molecular weight formula_weight	25064.1 kDa
Source method src_method	nat
Copy count entity_count	3

Polymer Polymer

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

GLFGAIAGFIEGGWTGMIDGWYGYHHQNEQGSGYAADQKSTQNAIDGITSKVNSVIEKMNTQFTAVGKEFNNLERRIENLNKKVDDGFLDVWTYNAELLVLLENERTLDFHDSNVRNLYEKVKSQLRNNAKEIGNGCFEFYHKCDDECMESVKNGTYDYPKYSEESKLNREEIDGVKLESMGVYQILAIYSTVASSLVLLVSLGAISFWMCSNGSLQCRICI

Entity 3 Entity 3 non-polymer

Description description	N-acetyl-alpha-neuraminic acid
Molecular weight formula_weight	309.3 kDa
Source method src_method	man
Copy count entity_count	3

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6. Fold Classification (SCOP + CATH) 15 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d2wrhh_
Class class	b — All beta proteins
Fold Fold fold	b.19 — Viral protein domain
Superfamily Superfamily superfamily	b.19.1 — Viral protein domain
Family Family family	b.19.1.2 — Influenza hemagglutinin headpiece

Domain ID domain_id	d2wrhi_
Class class	h — Coiled coil proteins
Fold Fold fold	h.3 — Stalk segment of viral fusion proteins
Superfamily Superfamily superfamily	h.3.1 — Influenza hemagglutinin (stalk)
Family Family family	h.3.1.1 — Influenza hemagglutinin (stalk)

Domain ID domain_id	d2wrhj_
Class class	b — All beta proteins
Fold Fold fold	b.19 — Viral protein domain
Superfamily Superfamily superfamily	b.19.1 — Viral protein domain
Family Family family	b.19.1.2 — Influenza hemagglutinin headpiece

Domain ID domain_id	d2wrhk_
Class class	h — Coiled coil proteins
Fold Fold fold	h.3 — Stalk segment of viral fusion proteins
Superfamily Superfamily superfamily	h.3.1 — Influenza hemagglutinin (stalk)
Family Family family	h.3.1.1 — Influenza hemagglutinin (stalk)

Domain ID domain_id	d2wrhl_
Class class	b — All beta proteins
Fold Fold fold	b.19 — Viral protein domain
Superfamily Superfamily superfamily	b.19.1 — Viral protein domain
Family Family family	b.19.1.2 — Influenza hemagglutinin headpiece

Domain ID domain_id	d2wrhm_
Class class	h — Coiled coil proteins
Fold Fold fold	h.3 — Stalk segment of viral fusion proteins
Superfamily Superfamily superfamily	h.3.1 — Influenza hemagglutinin (stalk)
Family Family family	h.3.1.1 — Influenza hemagglutinin (stalk)

CATH v4.4 (9 domains)

Domain ID domain_id	2wrhH01
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	77 — Hemagglutinin; Chain A, domain 2
Homologous superfamily homologous superfamily	10 — Hemagglutinin Chain A, Domain 2

Domain ID domain_id	2wrhH02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	209 — Hemagglutinin (Ha1 Chain); Chain: A; domain 1
Homologous superfamily homologous superfamily	20 — Haemagglutinin, alpha/beta domain, HA1 chain

Domain ID domain_id	2wrhI00
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	20 — Hemagglutinin Ectodomain; Chain B
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	2wrhJ01
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	77 — Hemagglutinin; Chain A, domain 2
Homologous superfamily homologous superfamily	10 — Hemagglutinin Chain A, Domain 2

Domain ID domain_id	2wrhJ02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	209 — Hemagglutinin (Ha1 Chain); Chain: A; domain 1
Homologous superfamily homologous superfamily	20 — Haemagglutinin, alpha/beta domain, HA1 chain

Domain ID domain_id	2wrhK00
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	20 — Hemagglutinin Ectodomain; Chain B
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	2wrhL01
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	77 — Hemagglutinin; Chain A, domain 2
Homologous superfamily homologous superfamily	10 — Hemagglutinin Chain A, Domain 2

Domain ID domain_id	2wrhL02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	209 — Hemagglutinin (Ha1 Chain); Chain: A; domain 1
Homologous superfamily homologous superfamily	20 — Haemagglutinin, alpha/beta domain, HA1 chain

Domain ID domain_id	2wrhM00
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	20 — Hemagglutinin Ectodomain; Chain B
Homologous superfamily homologous superfamily	10 —

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Unit-cell length a length_a	103.416 Å
Unit-cell length b length_b	155.538 Å
Unit-cell length c length_c	157.876 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	12

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	3.000 Å
Low-resolution limit resolution_low	19.984 Å
R factor r_factor	0.2301
R_work r_work	0.2289
R_free r_free	0.2517

structure of H1 duck albert hemagglutinin with human receptor

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

HEMAGGLUTININ HA1 CHAIN

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

2wrh__assembly_1__model_1

2wrh__assembly_1__model_1 | I(q)

2wrh__assembly_1__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

6. Fold Classification (SCOP + CATH) 15 domains

SCOP 2.08 (6 domains)

CATH v4.4 (9 domains)

7. Citations (1)

structure of H1 duck albert hemagglutinin with human receptor

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

HEMAGGLUTININ HA1 CHAIN

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

2wrh__assembly_1__model_1

2wrh__assembly_1__model_1 | I(q)

2wrh__assembly_1__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

6. Fold Classification (SCOP + CATH) 15 domains

SCOP 2.08 (6 domains)

CATH v4.4 (9 domains)

7. Citations (1)