SAXSdb — 7zi2

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

Deoxycytidine kinase

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	URIDINE-5'-DIPHOSPHATE × 2 N-[3-[[4-[4,6-bis(azanyl)pyrimidin-2-yl]-1,3-thiazol-2-yl]amino]-4-methyl-phenyl]-4-[(4-methylpiperazin-1-yl)methyl]benzamide × 2 SODIUM ION × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	DCK_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 21–280； UniProt 1–260

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	7zi2
Deposition date deposition_date	2022-04-07
Structure title title	Crystal structure of dCK C4S-S74E mutant in complex with UDP and the dCKi2 inhibitor
Keywords keywords	Inhibitor, TRANSFERASE; TRANSFERASE
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.

7zi2__assembly_1__model_1

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

Download this curve (.dat)

7zi2__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7zi2__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	26.17 Å
Rg (electron density)	25.61 Å
Total Rg	26.42 Å
Atom count	3974
Residues	460
Excluded volume	70510 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7zi2__assembly_1__model_1`	dimeric （2）	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	Deoxycytidine kinase
Molecular weight formula_weight	32701.6 kDa
EC 编号 ec_number	2.7.1.74,2.7.1.76,2.7.1.113
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	2024

MGSSHHHHHHSSGLVPRGSHMATPPKRSSPSFSASSEGTRIKKISIEGNIAAGKSTFVNILKQLSEDWEVVPEPVARWSNVQSTQDEFEELTMEQKNGGNVLQMMYEKPERWSFTFQTYACLSRIRAQLASLNGKLKDAEKPVLFFERSVYSDRYIFASNLYESESMNETEWTIYQDWHDWMNNQFGQSLELDGIIYLQATPETCLHRIYLRGRNEEQGIPLEYLEKLHYKHESWLLHRTLKTNFDYLQEVPILTLDVNEDFKDKYESLVEKVKEFLSTL

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	URIDINE-5'-DIPHOSPHATE
Molecular weight formula_weight	404.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	N-[3-[[4-[4,6-bis(azanyl)pyrimidin-2-yl]-1,3-thiazol-2-yl]amino]-4-methyl-phenyl]-4-[(4-methylpiperazin-1-yl)methyl]benzamide
Molecular weight formula_weight	529.7 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	SODIUM ION
Molecular weight formula_weight	23.0 kDa
Source method src_method	nat
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	37

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Unit-cell length a length_a	68.836 Å
Unit-cell length b length_b	68.836 Å
Unit-cell length c length_c	123.656 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	8

Space group space_group	P 41 2 2
Space-group number int_tables_number	91
Crystal system crystal_system	—

Resolution resolution	2.180 Å
Low-resolution limit resolution_low	48.720 Å
R factor r_factor	0.2041
R_work r_work	0.2013
R_free r_free	0.2616

Crystal structure of dCK C4S-S74E mutant in complex with UDP and the dCKi2 inhibitor

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

Deoxycytidine kinase

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

7zi2__assembly_1__model_1

7zi2__assembly_1__model_1 | I(q)

7zi2__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 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

7. Citations (1)

Crystal structure of dCK C4S-S74E mutant in complex with UDP and the dCKi2 inhibitor

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

Deoxycytidine kinase

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

7zi2__assembly_1__model_1

7zi2__assembly_1__model_1 | I(q)

7zi2__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 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

7. Citations (1)