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3qz8

TT-4 ternary complex of Dpo4

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

DNA polymerase IV

Sulfolobus solfataricus

UniProt Q97W02

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Monomer Protein 1 DNA 2 5'-D(*GP*GP*CP*AP*CP*TP*GP*AP*TP*CP*AP*GP*G)-3' × 1 5'-D(*TP*TP*AP*CP*GP*CP*CP*TP*TP*GP*AP*TP*CP*AP*GP*TP*GP*CP*C)-3' × 1 CALCIUM ION × 3 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1 water × 3 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer
2rdi

1 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1jx4 1jxl 1n48 1n56 1n56 1ryr 1rys 1rys 1s0m 1s0m 1s0n 1s0o

182 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name DPO42_SULSO
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–352； UniProt 1–352

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_id3qz8
Deposition date deposition_date2011-03-04
Structure title titleTT-4 ternary complex of Dpo4
Keywords keywordslesion bypass, single-base deletion, -1 frameshift, REPLICATION-DNA complex, TRANSFERASE-DNA complex; TRANSFERASE/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.

3qz8__assembly_1__model_1

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

Download this curve (.dat)

3qz8__assembly_1__model_1 | I(q)

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

3qz8__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）23.31 Å
Rg (electron density)22.75 Å
Total Rg23.49 Å
Atom count6249
Residues369
Excluded volume58597 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3qz8__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)

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd3qz8a1
Class classe — Multi-domain proteins (alpha and beta)
Fold Fold folde.8 — DNA/RNA polymerases
Superfamily Superfamily superfamilye.8.1 — DNA/RNA polymerases
Family Family familye.8.1.7 — Lesion bypass DNA polymerase (Y-family), catalytic domain
Domain ID domain_idd3qz8a2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.240 — Lesion bypass DNA polymerase (Y-family), little finger domain
Superfamily Superfamily superfamilyd.240.1 — Lesion bypass DNA polymerase (Y-family), little finger domain
Family Family familyd.240.1.1 — Lesion bypass DNA polymerase (Y-family), little finger domain

CATH v4.4 (4 domains)

Domain ID domain_id3qz8A01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily270 — Reverse transcriptase/Diguanylate cyclase domain
Domain ID domain_id3qz8A02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology1170 — MutS, DNA mismatch repair protein, domain I
Homologous superfamily homologous superfamily60 —
Domain ID domain_id3qz8A03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily20 — 5' to 3' exonuclease, C-terminal subdomain
Domain ID domain_id3qz8A04
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily100 — DNA polymerase, Y-family, little finger domain
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7. Citations (1)