4mvl

Crystal structure of an engineered lipocalin (Anticalin H1GA) in complex with the Alzheimer amyloid peptide Abeta1-40

Method: X-RAY DIFFRACTION Dmax: 90.1 Å Quality: EXCELLENT

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

Neutrophil gelatinase-associated lipocalin

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 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 21–198 Fragment:UNP residues 21-198 Mutation:Q28H,L36A,A40V,I41L,Q49L,L70G,R72D,K73D,D77L,W79K,C87S,N96R,Y100E,L103G,Y106W,K125E,S127A,Y132T,K134N Beta-amyloid protein 40 × 1 (P05067) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8;293 K;24 % (w/v) PEG 3350, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.30 Å R-free 0.279
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 21–198 Fragment:UNP residues 21-198 Mutation:Q28H,L36A,A40V,I41L,Q49L,L70G,R72D,K73D,D77L,W79K,C87S,N96R,Y100E,L103G,Y106W,K125E,S127A,Y132T,K134N Beta-amyloid protein 40 × 1 (P05067) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8;293 K;24 % (w/v) PEG 3350, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.30 Å R-free 0.279
3 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 21–198 Fragment:UNP residues 21-198 Mutation:Q28H,L36A,A40V,I41L,Q49L,L70G,R72D,K73D,D77L,W79K,C87S,N96R,Y100E,L103G,Y106W,K125E,S127A,Y132T,K134N Beta-amyloid protein 40 × 1 (P05067) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8;293 K;24 % (w/v) PEG 3350, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.30 Å R-free 0.279
4 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain D; UniProt 21–198 Fragment:UNP residues 21-198 Mutation:Q28H,L36A,A40V,I41L,Q49L,L70G,R72D,K73D,D77L,W79K,C87S,N96R,Y100E,L103G,Y106W,K125E,S127A,Y132T,K134N Beta-amyloid protein 40 × 1 (P05067) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8;293 K;24 % (w/v) PEG 3350, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.30 Å R-free 0.279

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 159 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 1–178; UniProt 21–198 Author chain B; PDBConstruct 1–178; UniProt 21–198 Author chain C; PDBConstruct 1–178; UniProt 21–198 Author chain D; PDBConstruct 1–178; UniProt 21–198

Beta-amyloid protein 40

OrganismNot specified

UniProt P05067

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 E; UniProt 672–711 Fragment:UNP residues 672-711 Neutrophil gelatinase-associated lipocalin × 1 (P80188) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8;293 K;24 % (w/v) PEG 3350, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.30 Å R-free 0.279
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain F; UniProt 672–711 Fragment:UNP residues 672-711 Neutrophil gelatinase-associated lipocalin × 1 (P80188) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8;293 K;24 % (w/v) PEG 3350, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.30 Å R-free 0.279
3 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain G; UniProt 672–711 Fragment:UNP residues 672-711 Neutrophil gelatinase-associated lipocalin × 1 (P80188) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8;293 K;24 % (w/v) PEG 3350, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.30 Å R-free 0.279
4 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain H; UniProt 672–711 Fragment:UNP residues 672-711 Neutrophil gelatinase-associated lipocalin × 1 (P80188) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8;293 K;24 % (w/v) PEG 3350, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.30 Å R-free 0.279

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.

211 other PDB entries and 279 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A4_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain E; PDBConstruct 1–40; UniProt 672–711 Author chain F; PDBConstruct 1–40; UniProt 672–711 Author chain G; PDBConstruct 1–40; UniProt 672–711 Author chain H; PDBConstruct 1–40; UniProt 672–711

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 4mvl

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id4mvl
Deposition date deposition_date2013-09-24
Structure title titleCrystal structure of an engineered lipocalin (Anticalin H1GA) in complex with the Alzheimer amyloid peptide Abeta1-40
Keywords keywordsbeta-barrel, engineered lipocalin, binding protein, PROTEIN BINDING-PROTEIN FIBRIL complex; PROTEIN BINDING/PROTEIN FIBRIL
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier30.57
Radius of gyration Rg (electron density) rg_electron29.56
Forward intensity I(0) i0104433000.00
Molecular weight molecular_weight82910.0 kDa
Excluded volume excluded_volume104840 ų
Envelope volume envelope_volume139530 ų
Hydration-shell volume shell_volume38509 ų
Envelope diameter envelope_diameter98.5
Shell Rg shell_rg37.34
Envelope Rg envelope_rg29.57
Shape Rg shape_rg29.50
Total Rg total_rg30.53
Total atoms total_atoms5864
Residues n_residues730
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 dmax90.1
Rg (real space) rg_real30.38
Rg uncertainty (real space) rg_real_error0.46
I(0) (real space) i0_real1.0440e+08
I(0) uncertainty (real space) i0_real_error1.5430e+06
Rg (reciprocal space) rg_reciprocal30.46
I(0) (reciprocal space) i0_reciprocal104400000.0000
Solution quality estimate total_estimate0.9080
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary88.3
Skewness Skewness skewness0.056
Kurtosis Kurtosis kurtosis-0.651
Angular range angular_range— – 0.2600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha54980000.0000
Real-space data points n_real_points53
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.973; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.993; Smooth: 0.887

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id4mvlA00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily20 — Calycin beta-barrel core domain
Domain ID domain_id4mvlB00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily20 — Calycin beta-barrel core domain
Domain ID domain_id4mvlC00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily20 — Calycin beta-barrel core domain
Domain ID domain_id4mvlD00
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)