8ohm

CRYSTAL STRUCTURE OF RNA HELICASE FROM GENOTYPE 1B HEPATITIS C VIRUS: MECHANISM OF UNWINDING DUPLEX RNA

Method: X-RAY DIFFRACTION Dmax: 74.5 Å Quality: EXCELLENT

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

RNA HELICASE

Hepatitis C virus

UniProt P26663

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1216–1650 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:pH 5.6;pH 5.6 Resolution 2.30 Å R-free 0.303

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.

87 other PDB entries and 151 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name POLG_HCVBK
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–435; UniProt 1216–1650

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 8ohm

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8ohm
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8ohm
Deposition date deposition_date1998-03-13
Structure title titleCRYSTAL STRUCTURE OF RNA HELICASE FROM GENOTYPE 1B HEPATITIS C VIRUS: MECHANISM OF UNWINDING DUPLEX RNA
Keywords keywordsRNA HELICASE, HEPATITIS C VIRUS, HCV, UNWINDING MECHANISM, HELICASE; HELICASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier25.03
Radius of gyration Rg (electron density) rg_electron24.22
Forward intensity I(0) i035133000.00
Molecular weight molecular_weight45905.0 kDa
Excluded volume excluded_volume57487 ų
Envelope volume envelope_volume69050 ų
Hydration-shell volume shell_volume24140 ų
Envelope diameter envelope_diameter75.8
Shell Rg shell_rg31.08
Envelope Rg envelope_rg23.85
Shape Rg shape_rg24.23
Total Rg total_rg24.98
Total atoms total_atoms3228
Residues n_residues435
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 dmax74.5
Rg (real space) rg_real24.93
Rg uncertainty (real space) rg_real_error0.45
I(0) (real space) i0_real3.5130e+07
I(0) uncertainty (real space) i0_real_error5.1750e+05
Rg (reciprocal space) rg_reciprocal24.97
I(0) (reciprocal space) i0_reciprocal35130000.0000
Solution quality estimate total_estimate0.9135
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary24.8
Skewness Skewness skewness0.096
Kurtosis Kurtosis kurtosis-0.751
Angular range angular_range— – 0.3150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha10690000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.976; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.947

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd8ohma1
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.37.1.14 — RNA helicase
Domain ID domain_idd8ohma2
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.37.1.14 — RNA helicase

CATH v4.4 (3 domains)

Domain ID domain_id8ohmA01
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_id8ohmA02
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_id8ohmA03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology820 — RNA Helicase; Chain A, domain 3
Homologous superfamily homologous superfamily10 — RNA Helicase Chain A , domain 3

8. Citations (1)

9. Files and Curves (10)