SAXSdb — 2fkk

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

Baseplate structural protein Gp10

Enterobacteria phage T4

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	BROMIDE ION × 3 PHOSPHITE ION × 3 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 3 1,2-ETHANEDIOL × 12 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	VG10_BPT4
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–206； UniProt 397–602

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	2fkk
Deposition date deposition_date	2006-01-04
Structure title title	Crystal structure of the C-terminal domain of the bacteriophage T4 gene product 10
Keywords keywords	Bacteriophage T4; Baseplate; Tail; Evolution; gp10; Structural comparisons, VIRAL PROTEIN; 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.

2fkk__assembly_1__model_1

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

Download this curve (.dat)

2fkk__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2fkk__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	30.02 Å
Rg (electron density)	30.31 Å
Total Rg	30.69 Å
Atom count	8401
Residues	552
Excluded volume	76134 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2fkk__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 (6)

Entity 1 Entity 1 polymer

Description description	Baseplate structural protein Gp10
Molecular weight formula_weight	22432.2 kDa
Mutation mutation	A442E, A530T
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	3320

DEIIDETDNLYVSQGPGVDISGDVNLTDFDKIGWPNVEAVQSYQREFNAVSNIFDTIYPIGTIYENAVNPNNPVTYMGFGSWKLFGQGKVLVGWNEDISDPNFALNNNDLDSGGNPSHTAGGTGGSTSVTLENTNLPATETDEEVLIVDENGSVIVGGCQYDPDESGPIYTKYREAKASTNSTHTPPTSITNIQPYITVYRWIRIA

Source Source

Source organism organism	Enterobacteria phage T4
NCBI taxonomy ID ncbi_taxonomy_id	10665
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 non-polymer

Description description	BROMIDE ION
Molecular weight formula_weight	79.9 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	PHOSPHITE ION
Molecular weight formula_weight	79.0 kDa
Source method src_method	syn
Copy count entity_count	1

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 non-polymer

Description description	1,2-ETHANEDIOL
Molecular weight formula_weight	62.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	363

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Unit-cell length a length_a	69.843 Å
Unit-cell length b length_b	69.843 Å
Unit-cell length c length_c	119.672 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	1.200 Å
Low-resolution limit resolution_low	10.000 Å
R factor r_factor	0.1200
R_work r_work	0.1190
R_free r_free	0.1364

Crystal structure of the C-terminal domain of the bacteriophage T4 gene product 10

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

Baseplate structural protein Gp10

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

2fkk__assembly_1__model_1

2fkk__assembly_1__model_1 | I(q)

2fkk__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

7. Citations (1)

Crystal structure of the C-terminal domain of the bacteriophage T4 gene product 10

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

Baseplate structural protein Gp10

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

2fkk__assembly_1__model_1

2fkk__assembly_1__model_1 | I(q)

2fkk__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

7. Citations (1)