3irq

Crystal structure of a Z-Z junction

Method: X-RAY DIFFRACTION Dmax: 75.1 Å Quality: GOOD

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

Double-stranded RNA-specific adenosine deaminase

Homo sapiens

UniProt P55265

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Homooligomer Protein × 4 DNA 2 PDB declaration: hexameric(6) Consistent with all polymer counts Chain A; UniProt 140–202 Chain B; UniProt 140–202 Chain C; UniProt 140–202 Chain D; UniProt 140–202 Fragment:Zalpha domain ;DNA (5'-D(*GP*TP*CP*GP*CP*GP*CP*GP*TP*CP*GP*CP*GP*CP*G)-3') ; × 1 ;DNA (5'-D(*AP*CP*CP*GP*CP*GP*CP*GP*AP*CP*GP*CP*GP*CP*G)-3') ; × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;17% PEG 2000, 0.1 M Tris-HCl, 0.2 M ammonium acetate, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.80 Å R-free 0.271

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

23 other PDB entries and 28 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DSRAD_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 5–67; UniProt 140–202 Author chain B; PDBConstruct 5–67; UniProt 140–202 Author chain C; PDBConstruct 5–67; UniProt 140–202 Author chain D; PDBConstruct 5–67; UniProt 140–202

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.

SAXS scattering curve SAXS Profile

SAXS profile for 3irq

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3irq
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3irq
Deposition date deposition_date2009-08-24
Structure title titleCrystal structure of a Z-Z junction
Keywords keywords;Z-DNA, ADAR1, RNA EDITING, INNATE IMMUNITY, DNA JUNCTION, Z DOMAIN, Alternative promoter usage, Alternative splicing, Cytoplasm, Disease mutation, DNA-binding, Hydrolase, Isopeptide bond, Metal-binding, mRNA processing, Nucleus, Phosphoprotein, Polymorphism, RNA-binding, RNA-mediated gene silencing, Ubl conjugation, Zinc, HYDROLASE-DNA COMPLEX ;; HYDROLASE/DNA
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier23.05
Radius of gyration Rg (electron density) rg_electron23.10
Forward intensity I(0) i027612600.00
Molecular weight molecular_weight35877.0 kDa
Excluded volume excluded_volume43097 ų
Envelope volume envelope_volume56939 ų
Hydration-shell volume shell_volume21085 ų
Envelope diameter envelope_diameter77.5
Shell Rg shell_rg29.38
Envelope Rg envelope_rg23.05
Shape Rg shape_rg23.13
Total Rg total_rg23.75
Total atoms total_atoms2489
Residues n_residues279
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax75.1
Rg (real space) rg_real23.02
Rg uncertainty (real space) rg_real_error0.59
I(0) (real space) i0_real2.7610e+07
I(0) uncertainty (real space) i0_real_error3.8220e+05
Rg (reciprocal space) rg_reciprocal23.03
I(0) (reciprocal space) i0_reciprocal27610000.0000
Solution quality estimate total_estimate0.8185
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary30.1
Skewness Skewness skewness0.261
Kurtosis Kurtosis kurtosis-0.437
Angular range angular_range— – 0.3450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5259000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.886; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.982; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (8 domains)

Domain ID domain_idd3irqa1
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.5 — 'Winged helix' DNA-binding domain
Family Family familya.4.5.19 — Z-DNA binding domain
Domain ID domain_idd3irqa2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd3irqb1
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.5 — 'Winged helix' DNA-binding domain
Family Family familya.4.5.19 — Z-DNA binding domain
Domain ID domain_idd3irqb2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd3irqc1
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.5 — 'Winged helix' DNA-binding domain
Family Family familya.4.5.19 — Z-DNA binding domain
Domain ID domain_idd3irqc2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd3irqd1
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.5 — 'Winged helix' DNA-binding domain
Family Family familya.4.5.19 — Z-DNA binding domain
Domain ID domain_idd3irqd2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (4 domains)

Domain ID domain_id3irqA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
Domain ID domain_id3irqB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
Domain ID domain_id3irqC00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
Domain ID domain_id3irqD00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

8. Citations (1)

9. Files and Curves (10)