1s7g

Structural Basis for the Mechanism and Regulation of Sir2 Enzymes

Method: X-RAY DIFFRACTION Dmax: 113.2 Å Quality: EXCELLENT

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

NAD-dependent deacetylase 2

Archaeoglobus fulgidus

UniProt O30124

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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain A; UniProt 1–253 Chain B; UniProt 1–253 Chain C; UniProt 1–253 Chain D; UniProt 1–253 Chain E; UniProt 1–253 Not recorded ZN ZINC ION × 9 SO4 SULFATE ION × 12 NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 3 1PE PENTAETHYLENE GLYCOL × 1 EDO 1,2-ETHANEDIOL × 3 2PE NONAETHYLENE GLYCOL × 1 P6G HEXAETHYLENE GLYCOL × 1 PG4 TETRAETHYLENE GLYCOL × 2 APR ADENOSINE-5-DIPHOSPHORIBOSE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.4;293 K;ammonium sulfate, PEG400, hepes, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.30 Å R-free 0.249

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.

3 other PDB entries and 12 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name NPD2_ARCFU
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–253; UniProt 1–253 Author chain B; PDBConstruct 1–253; UniProt 1–253 Author chain C; PDBConstruct 1–253; UniProt 1–253 Author chain D; PDBConstruct 1–253; UniProt 1–253 Author chain E; PDBConstruct 1–253; UniProt 1–253

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 1s7g

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1s7g
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1s7g
Deposition date deposition_date2004-01-29
Structure title titleStructural Basis for the Mechanism and Regulation of Sir2 Enzymes
Keywords keywordsenzyme, sirtuin, sir2, NAD+, ADP-ribose, TRANSCRIPTION; TRANSCRIPTION
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier36.21
Radius of gyration Rg (electron density) rg_electron35.68
Forward intensity I(0) i0314115000.00
Molecular weight molecular_weight141440.0 kDa
Excluded volume excluded_volume176120 ų
Envelope volume envelope_volume229740 ų
Hydration-shell volume shell_volume53848 ų
Envelope diameter envelope_diameter119.8
Shell Rg shell_rg42.08
Envelope Rg envelope_rg35.15
Shape Rg shape_rg35.67
Total Rg total_rg36.13
Total atoms total_atoms9874
Residues n_residues1244
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 dmax113.2
Rg (real space) rg_real36.06
Rg uncertainty (real space) rg_real_error0.78
I(0) (real space) i0_real3.1410e+08
I(0) uncertainty (real space) i0_real_error4.9360e+06
Rg (reciprocal space) rg_reciprocal36.16
I(0) (reciprocal space) i0_reciprocal314100000.0000
Solution quality estimate total_estimate0.9043
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary46.3
Skewness Skewness skewness0.175
Kurtosis Kurtosis kurtosis-0.511
Angular range angular_range— – 0.2200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha41330000.0000
Real-space data points n_real_points45
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.937; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.947

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (11)

7. Fold Classification (SCOP + CATH) 15 domains

SCOP 2.08 (5 domains)

Domain ID domain_idd1s7ga_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.31 — DHS-like NAD/FAD-binding domain
Superfamily Superfamily superfamilyc.31.1 — DHS-like NAD/FAD-binding domain
Family Family familyc.31.1.5 — Sir2 family of transcriptional regulators
Domain ID domain_idd1s7gb_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.31 — DHS-like NAD/FAD-binding domain
Superfamily Superfamily superfamilyc.31.1 — DHS-like NAD/FAD-binding domain
Family Family familyc.31.1.5 — Sir2 family of transcriptional regulators
Domain ID domain_idd1s7gc_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.31 — DHS-like NAD/FAD-binding domain
Superfamily Superfamily superfamilyc.31.1 — DHS-like NAD/FAD-binding domain
Family Family familyc.31.1.5 — Sir2 family of transcriptional regulators
Domain ID domain_idd1s7gd_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.31 — DHS-like NAD/FAD-binding domain
Superfamily Superfamily superfamilyc.31.1 — DHS-like NAD/FAD-binding domain
Family Family familyc.31.1.5 — Sir2 family of transcriptional regulators
Domain ID domain_idd1s7ge_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.31 — DHS-like NAD/FAD-binding domain
Superfamily Superfamily superfamilyc.31.1 — DHS-like NAD/FAD-binding domain
Family Family familyc.31.1.5 — Sir2 family of transcriptional regulators

CATH v4.4 (10 domains)

Domain ID domain_id1s7gA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1220 — TPP-binding domain
Domain ID domain_id1s7gA02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1600 — SIR2/SIRT2 'Small Domain'
Homologous superfamily homologous superfamily10 — SIR2/SIRT2 'Small Domain'
Domain ID domain_id1s7gB01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1220 — TPP-binding domain
Domain ID domain_id1s7gB02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1600 — SIR2/SIRT2 'Small Domain'
Homologous superfamily homologous superfamily10 — SIR2/SIRT2 'Small Domain'
Domain ID domain_id1s7gC01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1220 — TPP-binding domain
Domain ID domain_id1s7gC02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1600 — SIR2/SIRT2 'Small Domain'
Homologous superfamily homologous superfamily10 — SIR2/SIRT2 'Small Domain'
Domain ID domain_id1s7gD01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1220 — TPP-binding domain
Domain ID domain_id1s7gD02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1600 — SIR2/SIRT2 'Small Domain'
Homologous superfamily homologous superfamily10 — SIR2/SIRT2 'Small Domain'
Domain ID domain_id1s7gE01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1220 — TPP-binding domain
Domain ID domain_id1s7gE02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1600 — SIR2/SIRT2 'Small Domain'
Homologous superfamily homologous superfamily10 — SIR2/SIRT2 'Small Domain'

8. Citations (1)

9. Files and Curves (10)