1yc5

Sir2-p53 peptide-nicotinamide

Method: X-RAY DIFFRACTION Dmax: 65.5 Å Quality: GOOD

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

NAD-dependent deacetylase

Thermotoga maritima

UniProt Q9WYW0

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 1–246 Not recorded Cellular tumor antigen p53 peptide × 1 (Q9NP68) ZN ZINC ION × 1 NCA NICOTINAMIDE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 9.6;293 K;CHES, PEG3350, nicotinamide, pH 9.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 1.40 Å R-free 0.202

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.

15 other PDB entries and 19 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name NPD_THEMA
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–246; UniProt 1–246

Cellular tumor antigen p53 peptide

OrganismNot specified

UniProt Q9NP68

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 372–389 Non-standard monomer:Yes (specific site not provided by mmCIF) NAD-dependent deacetylase × 1 (Q9WYW0) ZN ZINC ION × 1 NCA NICOTINAMIDE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 9.6;293 K;CHES, PEG3350, nicotinamide, pH 9.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 1.40 Å R-free 0.202

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.

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

View Construct and Data Evidence
UniProt name P53_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–18; UniProt 372–389

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 1yc5

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1yc5
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1yc5
Deposition date deposition_date2004-12-21
Structure title titleSir2-p53 peptide-nicotinamide
Keywords keywordssir2, sirtuin, sir2Tm, SirT1, p53, nicotinamide, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.09
Radius of gyration Rg (electron density) rg_electron18.93
Forward intensity I(0) i013063800.00
Molecular weight molecular_weight27808.0 kDa
Excluded volume excluded_volume35126 ų
Envelope volume envelope_volume40261 ų
Hydration-shell volume shell_volume18217 ų
Envelope diameter envelope_diameter67.1
Shell Rg shell_rg24.84
Envelope Rg envelope_rg19.17
Shape Rg shape_rg18.87
Total Rg total_rg20.00
Total atoms total_atoms1951
Residues n_residues246
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 dmax65.5
Rg (real space) rg_real20.09
Rg uncertainty (real space) rg_real_error0.52
I(0) (real space) i0_real1.3060e+07
I(0) uncertainty (real space) i0_real_error1.8690e+05
Rg (reciprocal space) rg_reciprocal20.09
I(0) (reciprocal space) i0_reciprocal13060000.0000
Solution quality estimate total_estimate0.8019
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary23.4
Skewness Skewness skewness0.369
Kurtosis Kurtosis kurtosis-0.283
Angular range angular_range— – 0.3950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2451000.0000
Real-space data points n_real_points71
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.808; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1yc5a1
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 (2 domains)

Domain ID domain_id1yc5A01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1220 — TPP-binding domain
Domain ID domain_id1yc5A02
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)