SAXSdb — 2x6w

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

TAIL SPIKE PROTEIN

ENTEROBACTERIA PHAGE HK620

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 3	;alpha-D-glucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-3)-[alpha-L-rhamnopyranose-(1-6)-alpha-D-glucopyranose-(1-4)][2-acetamido-2-deoxy-beta-D-glucopyranose-(1-3)]alpha-D-galactopyranose-(1-3)-2-acetamido-2-deoxy-alpha-D-glucopyranose ; × 3 SODIUM ION × 9 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 3 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9AYY6_BPHK6
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–600； UniProt 111–710

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	2x6w
Deposition date deposition_date	2010-02-22
Structure title title	Tailspike protein mutant E372Q of E.coli bacteriophage HK620 in complex with hexasaccharide
Keywords keywords	VIRAL PROTEIN, BETA-HELIX, HYDROLASE; 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.

2x6w__assembly_1__model_1

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

Download this curve (.dat)

2x6w__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2x6w__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	36.70 Å
Rg (electron density)	36.32 Å
Total Rg	36.62 Å
Atom count	13824
Residues	1791
Excluded volume	242660 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2x6w__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 (5)

Entity 1 Entity 1 polymer

Description description	TAIL SPIKE PROTEIN
Molecular weight formula_weight	64704.4 kDa
Mutation mutation	YES
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	5443

DPDQFRAIIESPEGAGHVGYQYRRNTGSTMRMVSDVLDERVSLWDFHCDPSGNVIQPGPNVDSRQYLQAAIDYVSSNGGGTITIPAGYTWYLGSYGVGGIAGHSGIIQLRSNVNLNIEGRIHLSPFFDLKPFQVFVGFDNGDPASSGNLENCHIYGHGVVDFGGYEFGASSQLRNGVAFGRSYNCSVTGITFQNGDVTWAITLGWNGYGSNCYVRKCRFINLVNSSVNADHSTVYVNCPYSGVESCYFSMSSSFARNIACSVQLHQHDTFYRGSTVNGYCRGAYVVMHAAEAAGAGSYAYNMQVENNIAVIYGQFVILGSDVTATVSGHLNDVIVSGNIVSIGERAAFSAPFGAFIDIGPDNSGASNVQDIQRVLVTGNSFYAPANITDSAAITLRANLNGCTFIANNFDCRYMVYNAPGTTSPVVQNLVWDKSNVIGGTHANQRAGQNLFDMQFASVVNSTIEVQLSCEDLSMFSCILFPASCQLSYSKITVDSAWTKSMSNTAVFEGNQQAGANVYVSYPATVNLTSYNTQGAVPFFSTDTNYAWVTSAYSLSINENLDFSPPATYTNKANGQLVGVGYNEIGGVRSVSVRLMLQRQV

Source Source

Source organism organism	ENTEROBACTERIA PHAGE HK620
NCBI taxonomy ID ncbi_taxonomy_id	155148
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 branched

Description description	;alpha-D-glucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-3)-[alpha-L-rhamnopyranose-(1-6)-alpha-D-glucopyranose-(1-4)][2-acetamido-2-deoxy-beta-D-glucopyranose-(1-3)]alpha-D-galactopyranose-(1-3)-2-acetamido-2-deoxy-alpha-D-glucopyranose ;
Molecular weight formula_weight	1260.2 kDa
Source method src_method	man
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	SODIUM ION
Molecular weight formula_weight	23.0 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 4 Entity 4 non-polymer

Description description	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
Molecular weight formula_weight	122.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	687

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6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id	2x6wA01
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	20 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily	90 — Hk620 tailspike protein, N-terminal domain-like

Domain ID domain_id	2x6wA02
Class class	2 — Mainly Beta
Architecture architecture	160 — 3 Solenoid
Topology topology	20 — Pectate Lyase C-like
Homologous superfamily homologous superfamily	10 — Single-stranded right-handed beta-helix, Pectin lyase-like

Domain ID domain_id	2x6wA03
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily	250 —

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Unit-cell length a length_a	74.530 Å
Unit-cell length b length_b	74.530 Å
Unit-cell length c length_c	174.610 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	6

Space group space_group	P 3 2 1
Space-group number int_tables_number	150
Crystal system crystal_system	—

Resolution resolution	1.350 Å
Low-resolution limit resolution_low	36.440 Å
R factor r_factor	0.1242
R_work r_work	0.1225
R_free r_free	0.1557

Tailspike protein mutant E372Q of E.coli bacteriophage HK620 in complex with hexasaccharide

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

TAIL 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

2x6w__assembly_1__model_1

2x6w__assembly_1__model_1 | I(q)

2x6w__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 branched

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

7. Citations (2)

Tailspike protein mutant E372Q of E.coli bacteriophage HK620 in complex with hexasaccharide

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

TAIL 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

2x6w__assembly_1__model_1

2x6w__assembly_1__model_1 | I(q)

2x6w__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 branched

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

7. Citations (2)