1qqs

NEUTROPHIL GELATINASE ASSOCIATED LIPOCALIN HOMODIMER

Method: X-RAY DIFFRACTION Dmax: 53.2 Å Quality: GOOD

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

NEUTROPHIL GELATINASE

Homo sapiens

UniProt P80188

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Homooligomer Protein × 2 其他Polymer 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 24–197 Not recorded alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 DKA DECANOIC ACID × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.5;298 K;14 % W/W PEG 8K 15% V/V GLYCEROL 50MM ACETATE, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 2.40 Å R-free 0.287

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.

57 other PDB entries and 162 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name NGAL_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–174; UniProt 24–197

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 1qqs

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1qqs
Deposition date deposition_date1999-06-07
Structure title titleNEUTROPHIL GELATINASE ASSOCIATED LIPOCALIN HOMODIMER
Keywords keywordsNEUTROPHIL LIPOCALIN, SIGNAL PROTEIN, GLYCOPROTEIN, SUGAR BINDING PROTEIN; SUGAR BINDING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier17.44
Radius of gyration Rg (electron density) rg_electron15.82
Forward intensity I(0) i07383190.00
Molecular weight molecular_weight20441.0 kDa
Excluded volume excluded_volume25858 ų
Envelope volume envelope_volume29664 ų
Hydration-shell volume shell_volume15520 ų
Envelope diameter envelope_diameter52.4
Shell Rg shell_rg22.02
Envelope Rg envelope_rg16.16
Shape Rg shape_rg15.77
Total Rg total_rg17.10
Total atoms total_atoms1443
Residues n_residues174
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 dmax53.2
Rg (real space) rg_real17.28
Rg uncertainty (real space) rg_real_error0.25
I(0) (real space) i0_real7.3830e+06
I(0) uncertainty (real space) i0_real_error8.2100e+04
Rg (reciprocal space) rg_reciprocal17.30
I(0) (reciprocal space) i0_reciprocal7383000.0000
Solution quality estimate total_estimate0.8956
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.9
Skewness Skewness skewness0.010
Kurtosis Kurtosis kurtosis-0.478
Angular range angular_range— – 0.4550 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha1584000.0000
Real-space data points n_real_points76
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.893; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.982; Smooth: 0.979

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1qqsa_
Class classb — All beta proteins
Fold Fold foldb.60 — Lipocalins
Superfamily Superfamily superfamilyb.60.1 — Lipocalins
Family Family familyb.60.1.1 — Retinol binding protein-like

CATH v4.4 (1 domains)

Domain ID domain_id1qqsA00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily20 — Calycin beta-barrel core domain

8. Citations (1)

9. Files and Curves (10)