4bxk

Crystal structure of the Angiotensin-1 converting enzyme N-domain in complex with a domain-specific inhibitor

Method: X-RAY DIFFRACTION Dmax: 108.2 Å Quality: GOOD

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

ANGIOTENSIN-CONVERTING ENZYME

HOMO SAPIENS

UniProt P12821

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 Monomer Protein × 1 其他Polymer 3 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 30–657 Fragment:N DOMAIN, RESIDUES 30-657 Mutation:YES alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ;beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 PEG DI(HYDROXYETHYL)ETHER × 3 P6G HEXAETHYLENE GLYCOL × 1 1IU [3-[[(2S)-1-azanyl-1-oxidanylidene-propan-2-yl]amino]-2-methyl-3-oxidanylidene-propyl]-[(1R)-1-[[(2R)-2-azanyl-3-(1H-1,2,3,4-tetrazol-5-yl)propanoyl]amino]-2-phenyl-ethyl]phosphinic acid × 1 ZN ZINC ION × 1 CL CHLORIDE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 8.5;0.06 M DIVALENT CATIONS, 0.1 M TRIS/BICINE PH 8.5, 30 % PEG550MME/PEG20000 Resolution 2.20 Å R-free 0.220
2 Other combination Monomer Protein × 1 其他Polymer 2 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 30–657 Fragment:N DOMAIN, RESIDUES 30-657 Mutation:YES 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 PEG DI(HYDROXYETHYL)ETHER × 2 P6G HEXAETHYLENE GLYCOL × 1 1IU [3-[[(2S)-1-azanyl-1-oxidanylidene-propan-2-yl]amino]-2-methyl-3-oxidanylidene-propyl]-[(1R)-1-[[(2R)-2-azanyl-3-(1H-1,2,3,4-tetrazol-5-yl)propanoyl]amino]-2-phenyl-ethyl]phosphinic acid × 1 ZN ZINC ION × 1 CL CHLORIDE ION × 1 PG4 TETRAETHYLENE GLYCOL × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 8.5;0.06 M DIVALENT CATIONS, 0.1 M TRIS/BICINE PH 8.5, 30 % PEG550MME/PEG20000 Resolution 2.20 Å R-free 0.220

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.

89 other PDB entries and 149 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ACE_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–628; UniProt 30–657 Author chain B; PDBConstruct 1–628; UniProt 30–657

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 4bxk

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id4bxk
Deposition date deposition_date2013-07-12
Structure title titleCrystal structure of the Angiotensin-1 converting enzyme N-domain in complex with a domain-specific inhibitor
Keywords keywordsHYDROLASE, METALLOPROTEASE, PROTEASE INHIBITOR; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier35.23
Radius of gyration Rg (electron density) rg_electron34.36
Forward intensity I(0) i0316840000.00
Molecular weight molecular_weight144560.0 kDa
Excluded volume excluded_volume180680 ų
Envelope volume envelope_volume223220 ų
Hydration-shell volume shell_volume52265 ų
Envelope diameter envelope_diameter108.5
Shell Rg shell_rg42.50
Envelope Rg envelope_rg34.20
Shape Rg shape_rg34.30
Total Rg total_rg35.11
Total atoms total_atoms10214
Residues n_residues1214
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 dmax108.2
Rg (real space) rg_real35.14
Rg uncertainty (real space) rg_real_error0.53
I(0) (real space) i0_real3.1680e+08
I(0) uncertainty (real space) i0_real_error4.4350e+06
Rg (reciprocal space) rg_reciprocal35.20
I(0) (reciprocal space) i0_reciprocal316900000.0000
Solution quality estimate total_estimate0.8959
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary38.5
Skewness Skewness skewness0.212
Kurtosis Kurtosis kurtosis-0.639
Angular range angular_range— – 0.2250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha123000000.0000
Real-space data points n_real_points46
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.960; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.764

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (13)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd4bxka_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.92 — Zincin-like
Superfamily Superfamily superfamilyd.92.1 — Metalloproteases ('zincins'), catalytic domain
Family Family familyd.92.1.0 — automated matches
Domain ID domain_idd4bxkb_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.92 — Zincin-like
Superfamily Superfamily superfamilyd.92.1 — Metalloproteases ('zincins'), catalytic domain
Family Family familyd.92.1.0 — automated matches

8. Citations (1)

9. Files and Curves (10)