8ccz

Crystal structure of human Sirt3 in complex with an inhibiting HIV1 Tat-37-59 peptide

Method: X-RAY DIFFRACTION Dmax: 90.1 Å Quality: EXCELLENT

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

NAD-dependent protein deacetylase sirtuin-3, mitochondrial

Homo sapiens

UniProt Q9NTG7

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 118–399 Not recorded Protein Tat × 1 (P12506) ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293.15 K;10 mg/ml human Sirt3-(118-399) in 20 mM Tris/HCl, pH 8.0, 150 mM NaCl, 5% (v/v) glycerol, 1 mM TCEP were incubated with 2 mM Tat-37-59 in 10% (v/v) DMSO for 60 min at 293.15 K. The complex was crystallized using the sitting-drop vapor-diffusion method at 293.15 K with 100 mM CHES, pH 9.0, 20% (w/v) PEG 8000 as reservoir solution. Resolution 1.95 Å R-free 0.276
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 118–399 Not recorded Protein Tat × 1 (P12506) ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293.15 K;10 mg/ml human Sirt3-(118-399) in 20 mM Tris/HCl, pH 8.0, 150 mM NaCl, 5% (v/v) glycerol, 1 mM TCEP were incubated with 2 mM Tat-37-59 in 10% (v/v) DMSO for 60 min at 293.15 K. The complex was crystallized using the sitting-drop vapor-diffusion method at 293.15 K with 100 mM CHES, pH 9.0, 20% (w/v) PEG 8000 as reservoir solution. Resolution 1.95 Å R-free 0.276

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.

43 other PDB entries and 89 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SIR3_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–282; UniProt 118–399 Author chain B; PDBConstruct 1–282; UniProt 118–399

Protein Tat

OrganismNot specified

UniProt P12506

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 37–59 Mutation:C37A NAD-dependent protein deacetylase sirtuin-3, mitochondrial × 1 (Q9NTG7) ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293.15 K;10 mg/ml human Sirt3-(118-399) in 20 mM Tris/HCl, pH 8.0, 150 mM NaCl, 5% (v/v) glycerol, 1 mM TCEP were incubated with 2 mM Tat-37-59 in 10% (v/v) DMSO for 60 min at 293.15 K. The complex was crystallized using the sitting-drop vapor-diffusion method at 293.15 K with 100 mM CHES, pH 9.0, 20% (w/v) PEG 8000 as reservoir solution. Resolution 1.95 Å R-free 0.276
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain D; UniProt 37–59 Mutation:C37A NAD-dependent protein deacetylase sirtuin-3, mitochondrial × 1 (Q9NTG7) ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293.15 K;10 mg/ml human Sirt3-(118-399) in 20 mM Tris/HCl, pH 8.0, 150 mM NaCl, 5% (v/v) glycerol, 1 mM TCEP were incubated with 2 mM Tat-37-59 in 10% (v/v) DMSO for 60 min at 293.15 K. The complex was crystallized using the sitting-drop vapor-diffusion method at 293.15 K with 100 mM CHES, pH 9.0, 20% (w/v) PEG 8000 as reservoir solution. Resolution 1.95 Å R-free 0.276

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.

6 other PDB entries and 7 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TAT_HV1Z2
Isoform
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 1–23; UniProt 37–59 Author chain D; PDBConstruct 1–23; UniProt 37–59

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 8ccz

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id8ccz
Deposition date deposition_date2023-01-28
Structure title titleCrystal structure of human Sirt3 in complex with an inhibiting HIV1 Tat-37-59 peptide
Keywords keywordsSirtuin, inhibitor, HIV, complex, SIGNALING PROTEIN; SIGNALING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier28.18
Radius of gyration Rg (electron density) rg_electron27.07
Forward intensity I(0) i065346900.00
Molecular weight molecular_weight64685.0 kDa
Excluded volume excluded_volume81692 ų
Envelope volume envelope_volume99772 ų
Hydration-shell volume shell_volume30979 ų
Envelope diameter envelope_diameter92.2
Shell Rg shell_rg33.88
Envelope Rg envelope_rg26.94
Shape Rg shape_rg27.05
Total Rg total_rg27.85
Total atoms total_atoms4556
Residues n_residues576
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 dmax90.1
Rg (real space) rg_real28.15
Rg uncertainty (real space) rg_real_error0.51
I(0) (real space) i0_real6.5350e+07
I(0) uncertainty (real space) i0_real_error9.8840e+05
Rg (reciprocal space) rg_reciprocal28.17
I(0) (reciprocal space) i0_reciprocal65350000.0000
Solution quality estimate total_estimate0.9010
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks0
Primary peak position r_peak_primary
Skewness Skewness skewness0.301
Kurtosis Kurtosis kurtosis-0.483
Angular range angular_range— – 0.2800 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha19620000.0000
Real-space data points n_real_points57
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.919; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.993; Smooth: 0.960

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)