1lwg

Multiple Methionine Substitutions are Tolerated in T4 Lysozyme and have Coupled Effects on Folding and Stability

Method: X-RAY DIFFRACTION Dmax: 60.1 Å Quality: GOOD

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

Lysozyme

Enterobacteria phage T4

UniProt P00720

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 1–164 Mutation:C54T,L84M,V87M,L91M,C97A,L99M,V111M,L118M,L121M,L133M PO4 PHOSPHATE ION × 1 CL CHLORIDE ION × 3 K POTASSIUM ION × 1 HED 2-HYDROXYETHYL DISULFIDE × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;VAPOR DIFFUSION, HANGING DROP Resolution 1.70 Å
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–164 Mutation:C54T,L84M,V87M,L91M,C97A,L99M,V111M,L118M,L121M,L133M PO4 PHOSPHATE ION × 2 CL CHLORIDE ION × 6 K POTASSIUM ION × 2 HED 2-HYDROXYETHYL DISULFIDE × 6 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;VAPOR DIFFUSION, HANGING DROP Resolution 1.70 Å

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.

721 other PDB entries and 845 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name LYS_BPT4
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–164; UniProt 1–164

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 1lwg

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1lwg
Deposition date deposition_date2002-05-31
Structure title titleMultiple Methionine Substitutions are Tolerated in T4 Lysozyme and have Coupled Effects on Folding and Stability
Keywords keywordshydrolase (o-glycosyl), T4 lysozyme, methionine core mutant, protein engineering, protein folding, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier17.29
Radius of gyration Rg (electron density) rg_electron16.40
Forward intensity I(0) i07492080.00
Molecular weight molecular_weight19241.0 kDa
Excluded volume excluded_volume23757 ų
Envelope volume envelope_volume26761 ų
Hydration-shell volume shell_volume14185 ų
Envelope diameter envelope_diameter59.2
Shell Rg shell_rg21.88
Envelope Rg envelope_rg16.56
Shape Rg shape_rg16.36
Total Rg total_rg17.39
Total atoms total_atoms1327
Residues n_residues162
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 dmax60.1
Rg (real space) rg_real17.28
Rg uncertainty (real space) rg_real_error0.43
I(0) (real space) i0_real7.4920e+06
I(0) uncertainty (real space) i0_real_error8.6610e+04
Rg (reciprocal space) rg_reciprocal17.28
I(0) (reciprocal space) i0_reciprocal7492000.0000
Solution quality estimate total_estimate0.8522
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary59.3
Skewness Skewness skewness0.371
Kurtosis Kurtosis kurtosis-0.176
Angular range angular_range— – 0.4600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2032000.0000
Real-space data points n_real_points77
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.723; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.952; Smooth: 0.955

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1lwga_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.2 — Lysozyme-like
Superfamily Superfamily superfamilyd.2.1 — Lysozyme-like
Family Family familyd.2.1.3 — Phage lysozyme

CATH v4.4 (1 domains)

Domain ID domain_id1lwgA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology530 — Lysozyme
Homologous superfamily homologous superfamily40

8. Citations (1)

9. Files and Curves (10)