7ujn

Structure of Human SAMHD1 with Non-Hydrolysable dGTP Analog

Method: ELECTRON MICROSCOPY Dmax: 111.0 Å Quality: GOOD

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

Deoxynucleoside triphosphate triphosphohydrolase SAMHD1

Homo sapiens

UniProt Q9Y3Z3

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–626 Chain B; UniProt 1–626 Chain C; UniProt 1–626 Chain D; UniProt 1–626 Not recorded T8T 2'-deoxyguanosine-5'-O-(1-thiotriphosphate) × 12 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.89 Å

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.

75 other PDB entries and 105 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SAMH1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–626; UniProt 1–626 Author chain B; PDBConstruct 1–626; UniProt 1–626 Author chain C; PDBConstruct 1–626; UniProt 1–626 Author chain D; PDBConstruct 1–626; UniProt 1–626

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 7ujn

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7ujn
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7ujn
Deposition date deposition_date2022-03-31
Structure title titleStructure of Human SAMHD1 with Non-Hydrolysable dGTP Analog
Keywords keywordsdNTP Triphosphatase, HYDROLASE; HYDROLASE
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier36.65
Radius of gyration Rg (electron density) rg_electron36.19
Forward intensity I(0) i0830382000.00
Molecular weight molecular_weight231840.0 kDa
Excluded volume excluded_volume288500 ų
Envelope volume envelope_volume364580 ų
Hydration-shell volume shell_volume77185 ų
Envelope diameter envelope_diameter114.3
Shell Rg shell_rg46.68
Envelope Rg envelope_rg36.28
Shape Rg shape_rg36.18
Total Rg total_rg36.83
Total atoms total_atoms16272
Residues n_residues1948
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 dmax111.0
Rg (real space) rg_real36.36
Rg uncertainty (real space) rg_real_error0.46
I(0) (real space) i0_real8.3040e+08
I(0) uncertainty (real space) i0_real_error1.2530e+07
Rg (reciprocal space) rg_reciprocal36.54
I(0) (reciprocal space) i0_reciprocal830500000.0000
Solution quality estimate total_estimate0.8967
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary49.1
Skewness Skewness skewness0.083
Kurtosis Kurtosis kurtosis-0.515
Angular range angular_range— – 0.2150 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha723100000.0000
Real-space data points n_real_points44
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.914; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.965; Smooth: 0.947

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

8. Citations (1)

9. Files and Curves (10)