3e2i

Crystal structure of Thymidine Kinase from S. aureus

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Thymidine kinase

Staphylococcus aureus

UniProt Q0H0G9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 4 ZINC ION × 4 GLYCEROL × 4 water × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q0H0G9_STAAU
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 21–219; UniProt 1–199

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_id3e2i
Deposition date deposition_date2008-08-05
Structure title titleCrystal structure of Thymidine Kinase from S. aureus
Keywords keywordsZN-BINDING, ATP-binding, DNA synthesis, Kinase, Nucleotide-binding, Transferase; TRANSFERASE
Experimental Method methodX-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.

3e2i__assembly_1__model_1

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

Download this curve (.dat)

3e2i__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

3e2i__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg(Guinier)26.29 Å
Rg (electron density)25.56 Å
Total Rg26.25 Å
Atom count5392
Residues680
Excluded volume96485 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3e2i__assembly_1__model_1 tetrameric (4) 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 (4)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd3e2ia1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.24 — Type II thymidine kinase
Domain ID domain_idd3e2ia2
Class classg — Small proteins
Fold Fold foldg.39 — Glucocorticoid receptor-like (DNA-binding domain)
Superfamily Superfamily superfamilyg.39.1 — Glucocorticoid receptor-like (DNA-binding domain)
Family Family familyg.39.1.14 — Type II thymidine kinase zinc finger

CATH v4.4 (2 domains)

Domain ID domain_id3e2iA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id3e2iA02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily20 —
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7. Citations (1)