9lbt

DPPIV-VAMP

Method: X-RAY DIFFRACTION Dmax: 127.6 Å Quality: GOOD

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

Dipeptidyl peptidase 4 soluble form

Homo sapiens

UniProt P27487

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 41–765 Chain B; UniProt 41–765 Not recorded VAL-ALA-MET-PRO × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;296 K;0.25 M Ammonium acetate, 0.1 M Tris pH 8.5, 21% w/v Polyethylene glycol 3350 Resolution 1.99 Å R-free 0.195

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.

113 other PDB entries and 169 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DPP4_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–726; UniProt 41–765 Author chain B; PDBConstruct 2–726; UniProt 41–765

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 9lbt

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9lbt
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9lbt
Deposition date deposition_date2025-01-03
最后修订 last_revision2025-07-23
Structure title titleDPPIV-VAMP
Keywords keywordsDPP-IV, VAMP, PEPTIDE BINDING PROTEIN; PEPTIDE BINDING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier38.98
Radius of gyration Rg (electron density) rg_electron38.66
Forward intensity I(0) i0413234000.00
Molecular weight molecular_weight168380.0 kDa
Excluded volume excluded_volume210990 ų
Envelope volume envelope_volume271070 ų
Hydration-shell volume shell_volume57764 ų
Envelope diameter envelope_diameter130.3
Shell Rg shell_rg45.30
Envelope Rg envelope_rg38.39
Shape Rg shape_rg38.61
Total Rg total_rg39.17
Total atoms total_atoms11886
Residues n_residues1452
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 dmax127.6
Rg (real space) rg_real39.03
Rg uncertainty (real space) rg_real_error0.99
I(0) (real space) i0_real4.1320e+08
I(0) uncertainty (real space) i0_real_error7.2300e+06
Rg (reciprocal space) rg_reciprocal39.00
I(0) (reciprocal space) i0_reciprocal413200000.0000
Solution quality estimate total_estimate0.8816
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary40.5
Skewness Skewness skewness0.354
Kurtosis Kurtosis kurtosis-0.523
Angular range angular_range— – 0.2050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha47610000.0000
Real-space data points n_real_points42
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.853; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.901

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)