6gel

The structure of TWITCH-2B

Method: X-RAY DIFFRACTION Dmax: 122.6 Å Quality: GOOD

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

Green fluorescent protein,Optimized Ratiometric Calcium Sensor,Green fluorescent protein,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 Insufficient information Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 1–227 Chain A; UniProt 174–238 Chain A; UniProt 1–173 Non-standard monomer:Yes (specific site not provided by mmCIF) CA CALCIUM ION × 2 GOL GLYCEROL × 1 PG4 TETRAETHYLENE GLYCOL × 2 FMT FORMIC ACID × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 7;293 K;0.2 M sodium formiate, 5 mM calcium chloride, 18 % PEG 3350 Resolution 2.51 Å R-free 0.240
2 Insufficient information Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 1–227 Chain B; UniProt 174–238 Chain B; UniProt 1–173 Non-standard monomer:Yes (specific site not provided by mmCIF) CA CALCIUM ION × 2 GOL GLYCEROL × 2 FMT FORMIC ACID × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 7;293 K;0.2 M sodium formiate, 5 mM calcium chloride, 18 % PEG 3350 Resolution 2.51 Å R-free 0.240

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 743 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 1–226; UniProt 1–227 Author chain A; PDBConstruct 310–374; UniProt 174–238 Author chain A; PDBConstruct 381–552; UniProt 1–173 Author chain B; PDBConstruct 1–226; UniProt 1–227 Author chain B; PDBConstruct 310–374; UniProt 174–238 Author chain B; PDBConstruct 381–552; UniProt 1–173

Green fluorescent protein,Optimized Ratiometric Calcium Sensor,Green fluorescent protein,Green fluorescent protein

Aequorea victoria

UniProt W5IDB2

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 1–69 Non-standard monomer:Yes (specific site not provided by mmCIF) CA CALCIUM ION × 2 GOL GLYCEROL × 1 PG4 TETRAETHYLENE GLYCOL × 2 FMT FORMIC ACID × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 7;293 K;0.2 M sodium formiate, 5 mM calcium chloride, 18 % PEG 3350 Resolution 2.51 Å R-free 0.240
2 Insufficient information Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 1–69 Non-standard monomer:Yes (specific site not provided by mmCIF) CA CALCIUM ION × 2 GOL GLYCEROL × 2 FMT FORMIC ACID × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 7;293 K;0.2 M sodium formiate, 5 mM calcium chloride, 18 % PEG 3350 Resolution 2.51 Å R-free 0.240

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.

1 other PDB entries and 2 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name W5IDB2_OPSTA
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 234–302; UniProt 1–69 Author chain B; PDBConstruct 234–302; UniProt 1–69

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 6gel

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6gel
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6gel
Deposition date deposition_date2018-04-26
Structure title titleThe structure of TWITCH-2B
Keywords keywordsFluorescent Protein, Twitch-2B, FRET, Ratiometric Biosensor; FLUORESCENT PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier37.45
Radius of gyration Rg (electron density) rg_electron37.14
Forward intensity I(0) i0225515000.00
Molecular weight molecular_weight121050.0 kDa
Excluded volume excluded_volume151030 ų
Envelope volume envelope_volume197810 ų
Hydration-shell volume shell_volume45178 ų
Envelope diameter envelope_diameter126.0
Shell Rg shell_rg42.37
Envelope Rg envelope_rg36.71
Shape Rg shape_rg37.12
Total Rg total_rg37.51
Total atoms total_atoms8531
Residues n_residues1058
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 dmax122.6
Rg (real space) rg_real37.53
Rg uncertainty (real space) rg_real_error0.94
I(0) (real space) i0_real2.2550e+08
I(0) uncertainty (real space) i0_real_error4.0300e+06
Rg (reciprocal space) rg_reciprocal37.49
I(0) (reciprocal space) i0_reciprocal225500000.0000
Solution quality estimate total_estimate0.8875
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary38.0
Skewness Skewness skewness0.317
Kurtosis Kurtosis kurtosis-0.595
Angular range angular_range— – 0.2100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha37060000.0000
Real-space data points n_real_points43
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.916; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.974; Smooth: 0.813

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id6gelA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology238 — Recoverin; domain 1
Homologous superfamily homologous superfamily10 — EF-hand
Domain ID domain_id6gelB01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology238 — Recoverin; domain 1
Homologous superfamily homologous superfamily10 — EF-hand

8. Citations (2)

9. Files and Curves (10)