8jkc

Crystal structure of the Green fluorescent protein SE_A277 variant at pH 4.5

Method: X-RAY DIFFRACTION Dmax: 114.3 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 1–238 Mutation:F64L,Q80R,S147D,N149Q,V163A,S175G,S202F,Q204T,A206T Non-standard monomer:Yes (specific site not provided by mmCIF) No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.5;298 K;0.1M sodium acetate pH 4.5, 2.2M Sodium Chloride Resolution 1.95 Å R-free 0.246
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 1–238 Mutation:F64L,Q80R,S147D,N149Q,V163A,S175G,S202F,Q204T,A206T Non-standard monomer:Yes (specific site not provided by mmCIF) No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.5;298 K;0.1M sodium acetate pH 4.5, 2.2M Sodium Chloride Resolution 1.95 Å R-free 0.246
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 1–238 Mutation:F64L,Q80R,S147D,N149Q,V163A,S175G,S202F,Q204T,A206T Non-standard monomer:Yes (specific site not provided by mmCIF) No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.5;298 K;0.1M sodium acetate pH 4.5, 2.2M Sodium Chloride Resolution 1.95 Å R-free 0.246
4 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain D; UniProt 1–238 Mutation:F64L,Q80R,S147D,N149Q,V163A,S175G,S202F,Q204T,A206T Non-standard monomer:Yes (specific site not provided by mmCIF) No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.5;298 K;0.1M sodium acetate pH 4.5, 2.2M Sodium Chloride Resolution 1.95 Å R-free 0.246

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 741 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 1–236; UniProt 1–238 Author chain B; PDBConstruct 1–236; UniProt 1–238 Author chain C; PDBConstruct 1–236; UniProt 1–238 Author chain D; PDBConstruct 1–236; UniProt 1–238

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 8jkc

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8jkc
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id8jkc
Deposition date deposition_date2023-06-01
Structure title titleCrystal structure of the Green fluorescent protein SE_A277 variant at pH 4.5
Keywords keywordsbioimaging, Sensor. GFP, 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_guinier34.12
Radius of gyration Rg (electron density) rg_electron33.64
Forward intensity I(0) i0159978000.00
Molecular weight molecular_weight102290.0 kDa
Excluded volume excluded_volume128160 ų
Envelope volume envelope_volume159750 ų
Hydration-shell volume shell_volume40172 ų
Envelope diameter envelope_diameter115.0
Shell Rg shell_rg39.64
Envelope Rg envelope_rg33.41
Shape Rg shape_rg33.63
Total Rg total_rg34.11
Total atoms total_atoms7228
Residues n_residues896
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 dmax114.3
Rg (real space) rg_real34.19
Rg uncertainty (real space) rg_real_error0.84
I(0) (real space) i0_real1.6000e+08
I(0) uncertainty (real space) i0_real_error2.6920e+06
Rg (reciprocal space) rg_reciprocal34.15
I(0) (reciprocal space) i0_reciprocal160000000.0000
Solution quality estimate total_estimate0.8850
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary34.8
Skewness Skewness skewness0.354
Kurtosis Kurtosis kurtosis-0.512
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha34580000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.874; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.967; Smooth: 0.912

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

8. Citations (1)

9. Files and Curves (10)