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5k98

Structure of HipA-HipB-O2-O3 complex

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

Serine/threonine-protein kinase HipA

Escherichia coli (strain K12)

UniProt P23874

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 4 DNA 2 Antitoxin HipB × 2 （M9IJX7） ;DNA (5'-D(*TP*CP*CP*CP*TP*AP*TP*CP*CP*CP*CP*TP*TP*AP*AP*GP*GP*GP*GP*AP*TP*AP*G)-3') ; × 1 ;DNA (5'-D(*CP*TP*AP*TP*CP*CP*CP*CP*TP*TP*AP*AP*GP*GP*GP*GP*AP*TP*AP*GP*GP*GP*A)-3') ; × 1 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer
3dnt 3dnt 3dnu 3tpb 3tpd 3tpe 3tpt 3tpt 3tpv

9 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
2wiu 3dnv 3fbr 3hzi 4yg7 5k98

6 assemblies

View Construct and Data Evidence
UniProt name HIPA_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 10–448； UniProt 2–440 Author chain D； PDBConstruct 10–448； UniProt 2–440

Antitoxin HipB

Escherichia coli MP020980.2

UniProt M9IJX7

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 4 DNA 2 Serine/threonine-protein kinase HipA × 2 （P23874） ;DNA (5'-D(*TP*CP*CP*CP*TP*AP*TP*CP*CP*CP*CP*TP*TP*AP*AP*GP*GP*GP*GP*AP*TP*AP*G)-3') ; × 1 ;DNA (5'-D(*CP*TP*AP*TP*CP*CP*CP*CP*TP*TP*AP*AP*GP*GP*GP*GP*AP*TP*AP*GP*GP*GP*A)-3') ; × 1 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
5k98

1 assemblies

View Construct and Data Evidence
UniProt name M9IJX7_ECOLX
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 4–91； UniProt 1–88 Author chain P； PDBConstruct 4–91； UniProt 1–88

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_id5k98
Deposition date deposition_date2016-05-31
Structure title titleStructure of HipA-HipB-O2-O3 complex
Keywords keywordsHipA, persistence, E. coli, TRANSCRIPTION-DNA complex; TRANSCRIPTION/DNA
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.

5k98__assembly_1__model_1

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

Download this curve (.dat)

5k98__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.

5k98__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）35.79 Å
Rg (electron density)36.10 Å
Total Rg36.33 Å
Atom count8605
Residues1016
Excluded volume151300 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 5k98__assembly_1__model_1 hexameric （6） 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) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id5k98B00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology260 — 434 Repressor (Amino-terminal Domain)
Homologous superfamily homologous superfamily40 — lambda repressor-like DNA-binding domains
Domain ID domain_id5k98P00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology260 — 434 Repressor (Amino-terminal Domain)
Homologous superfamily homologous superfamily40 — lambda repressor-like DNA-binding domains
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7. Citations (1)