4eul

Crystal structure of enhanced Green Fluorescent Protein to 1.35A resolution reveals alternative conformations for Glu222

Method: X-RAY DIFFRACTION Dmax: 61.3 Å Quality: GOOD

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

Green fluorescent protein

Aequorea victoria

UniProt P42212

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 2–238 Mutation:F64L, S65T Non-standard monomer:Yes (specific site not provided by mmCIF) CA CALCIUM ION × 2 PEG DI(HYDROXYETHYL)ETHER × 4 SO4 SULFATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 6.5;277 K;0.1 M MES pH 6.5, 200 mM calcium acetate, 20% (w/v) PEG8000, 13% PEG200 for cryoprotection, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 1.35 Å R-free 0.169

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.

568 other PDB entries and 744 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GFP_AEQVI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–237; UniProt 2–238

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 4eul

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id4eul
Deposition date deposition_date2012-04-25
Structure title titleCrystal structure of enhanced Green Fluorescent Protein to 1.35A resolution reveals alternative conformations for Glu222
Keywords keywordsbeta barrel, cyclization of T65, Y66, G67 backbone atoms, generating chromophore, FLUORESCENT PROTEIN; FLUORESCENT PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.29
Radius of gyration Rg (electron density) rg_electron17.08
Forward intensity I(0) i012341000.00
Molecular weight molecular_weight26345.0 kDa
Excluded volume excluded_volume32995 ų
Envelope volume envelope_volume37131 ų
Hydration-shell volume shell_volume17924 ų
Envelope diameter envelope_diameter60.9
Shell Rg shell_rg23.62
Envelope Rg envelope_rg17.54
Shape Rg shape_rg17.03
Total Rg total_rg18.23
Total atoms total_atoms1853
Residues n_residues226
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 dmax61.3
Rg (real space) rg_real18.20
Rg uncertainty (real space) rg_real_error0.36
I(0) (real space) i0_real1.2340e+07
I(0) uncertainty (real space) i0_real_error1.5600e+05
Rg (reciprocal space) rg_reciprocal18.22
I(0) (reciprocal space) i0_reciprocal12340000.0000
Solution quality estimate total_estimate0.8703
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.0
Skewness Skewness skewness0.207
Kurtosis Kurtosis kurtosis-0.351
Angular range angular_range— – 0.4350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4434000.0000
Real-space data points n_real_points75
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.771; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.997

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd4eula_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.22 — GFP-like
Superfamily Superfamily superfamilyd.22.1 — GFP-like
Family Family familyd.22.1.1 — Fluorescent proteins

CATH v4.4 (1 domains)

Domain ID domain_id4eulA00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology155 — Green Fluorescent Protein
Homologous superfamily homologous superfamily10 — Green fluorescent protein

8. Citations (1)

9. Files and Curves (10)