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1kyh

Structure of Bacillus subtilis YxkO, a Member of the UPF0031 Family and a Putative Kinase

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

Hypothetical 29.9 kDa protein in SIGY-CYDD intergenic region

Bacillus subtilis

UniProt P94368

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 water × 1 Consistent with protein count
2 Protein homooligomer Homooligomer Protein 4 water × 4 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1kyh

1 assemblies

Homodimer

None

Homotetramer
1kyh 3rph 3rpz 3rq2 3rq5 3rq6 3rq8 3rqh 3rqq 3rqx

10 assemblies

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name YXKO_BACSU
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–276； UniProt 1–276

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_id1kyh
Deposition date deposition_date2002-02-04
Structure title titleStructure of Bacillus subtilis YxkO, a Member of the UPF0031 Family and a Putative Kinase
Keywords keywordsSTRUCTURAL GENOMICS, PSI, Protein Structure Initiative, Midwest Center for Structural Genomics, MCSG, UNKNOWN FUNCTION; STRUCTURAL GENOMICS, UNKNOWN FUNCTION
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.

1kyh__assembly_1__model_1

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

Download this curve (.dat)

1kyh__assembly_1__model_1 | I(q)

10-2 10-1 105 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1kyh__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）18.60 Å
Rg (electron density)17.39 Å
Total Rg18.24 Å
Atom count2043
Residues263
Excluded volume36539 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1kyh__assembly_1__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1kyh__assembly_2__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 (2)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1kyha_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.72 — Ribokinase-like
Superfamily Superfamily superfamilyc.72.1 — Ribokinase-like
Family Family familyc.72.1.4 — YjeF C-terminal domain-like

CATH v4.4 (1 domains)

Domain ID domain_id1kyhA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology1190 — UDP-N-acetylmuramoyl-L-alanine:D-glutamate ligase
Homologous superfamily homologous superfamily20 — Ribokinase
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7. Citations (1)