4twj

The structure of Sir2Af2 bound to a myristoylated histone peptide

Method: X-RAY DIFFRACTION Dmax: 66.9 Å Quality: GOOD

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

NAD-dependent protein deacylase 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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–253 Not recorded Histone H4 peptide × 1 (P02309) ZN ZINC ION × 1 ACT ACETATE ION × 5 GOL GLYCEROL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.8;293 K;0.1 M Na-acetate pH 4.8, 14-18% (v/v) 2-propanol, and 14-15% (w/v) PEG 6,000 Resolution 1.65 Å R-free 0.205

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

Histone H4 peptide

OrganismNot specified

UniProt P02309

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 B; UniProt 9–21 Fragment:UNP residues 9-21 Non-standard monomer:Yes (specific site not provided by mmCIF) NAD-dependent protein deacylase 2 × 1 (O30124) ZN ZINC ION × 1 ACT ACETATE ION × 5 GOL GLYCEROL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.8;293 K;0.1 M Na-acetate pH 4.8, 14-18% (v/v) 2-propanol, and 14-15% (w/v) PEG 6,000 Resolution 1.65 Å R-free 0.205

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 63 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name H4_YEAST
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–13; UniProt 9–21

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 4twj

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4twj
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4twj
Deposition date deposition_date2014-06-30
Structure title titleThe structure of Sir2Af2 bound to a myristoylated histone peptide
Keywords keywordsSirtuin, demyristoylation, archaeal proteins, histone peptide, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.26
Radius of gyration Rg (electron density) rg_electron19.10
Forward intensity I(0) i013296000.00
Molecular weight molecular_weight27675.0 kDa
Excluded volume excluded_volume34761 ų
Envelope volume envelope_volume40162 ų
Hydration-shell volume shell_volume18130 ų
Envelope diameter envelope_diameter66.3
Shell Rg shell_rg24.82
Envelope Rg envelope_rg19.20
Shape Rg shape_rg19.05
Total Rg total_rg20.10
Total atoms total_atoms1939
Residues n_residues245
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 dmax66.9
Rg (real space) rg_real20.27
Rg uncertainty (real space) rg_real_error0.36
I(0) (real space) i0_real1.3300e+07
I(0) uncertainty (real space) i0_real_error1.6620e+05
Rg (reciprocal space) rg_reciprocal20.27
I(0) (reciprocal space) i0_reciprocal13300000.0000
Solution quality estimate total_estimate0.8837
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary22.9
Skewness Skewness skewness0.370
Kurtosis Kurtosis kurtosis-0.326
Angular range angular_range— – 0.3900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2326000.0000
Real-space data points n_real_points71
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.830; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.998

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id4twjA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1220 — TPP-binding domain
Domain ID domain_id4twjA02
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)