1qq4

CRYSTAL STRUCTURE OF AN ALPHA-LYTIC PROTEASE MUTANT WITH ACCELERATED FOLDING KINETICS, R102H/G134S

Method: X-RAY DIFFRACTION Dmax: 55.5 Å Quality: GOOD

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

ALPHA-LYTIC PROTEASE

Lysobacter enzymogenes

UniProt P00778

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 200–397 Fragment:RESIDUES 1-198 Mutation:R102H,G134S SO4 SULFATE ION × 5 GOL GLYCEROL × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.14;298 K;lithium sulfate, tris-sulfate, pH 5.14, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 1.20 Å R-free 0.174

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.

48 other PDB entries and 56 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PRLA_LYSEN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–198; UniProt 200–397

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 1qq4

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1qq4
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1qq4
Deposition date deposition_date1999-06-10
Structure title titleCRYSTAL STRUCTURE OF AN ALPHA-LYTIC PROTEASE MUTANT WITH ACCELERATED FOLDING KINETICS, R102H/G134S
Keywords keywordsDOUBLE BETA BARREL, BACTERIAL SERINE PROTEASE, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier16.32
Radius of gyration Rg (electron density) rg_electron15.11
Forward intensity I(0) i09474270.00
Molecular weight molecular_weight20635.0 kDa
Excluded volume excluded_volume24948 ų
Envelope volume envelope_volume27522 ų
Hydration-shell volume shell_volume15050 ų
Envelope diameter envelope_diameter52.1
Shell Rg shell_rg21.37
Envelope Rg envelope_rg15.44
Shape Rg shape_rg15.07
Total Rg total_rg16.20
Total atoms total_atoms1435
Residues n_residues198
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 dmax55.5
Rg (real space) rg_real16.19
Rg uncertainty (real space) rg_real_error0.40
I(0) (real space) i0_real9.4740e+06
I(0) uncertainty (real space) i0_real_error1.3110e+05
Rg (reciprocal space) rg_reciprocal16.21
I(0) (reciprocal space) i0_reciprocal9474000.0000
Solution quality estimate total_estimate0.7844
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary21.3
Skewness Skewness skewness0.110
Kurtosis Kurtosis kurtosis-0.413
Angular range angular_range— – 0.4900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3042000.0000
Real-space data points n_real_points79
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.732; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1qq4a_
Class classb — All beta proteins
Fold Fold foldb.47 — Trypsin-like serine proteases
Superfamily Superfamily superfamilyb.47.1 — Trypsin-like serine proteases
Family Family familyb.47.1.1 — Prokaryotic proteases

CATH v4.4 (2 domains)

Domain ID domain_id1qq4A01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1qq4A02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases

8. Citations (1)

9. Files and Curves (10)