2v2c

The A178L mutation in the C-terminal hinge of the flexible loop-6 of triosephosphate isomerase (TIM) induces a more closed conformation of this hinge region in dimeric and monomeric TIM

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

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

TRIOSEPHOSPHATE ISOMERASE GLYCOSOMAL

TRYPANOSOMA BRUCEI BRUCEI

UniProt P04789

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–250 Mutation:YES SO4 SULFATE ION × 6 PGA 2-PHOSPHOGLYCOLIC ACID × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.5;0.1 M TEA PH 7.5, 2 % PEG 400, 2.0 M (NH4)2SO4 Resolution 1.89 Å R-free 0.182

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 80 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TPIS_TRYBB
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–250; UniProt 1–250

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 2v2c

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2v2c
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2v2c
Deposition date deposition_date2007-06-05
Structure title titleThe A178L mutation in the C-terminal hinge of the flexible loop-6 of triosephosphate isomerase (TIM) induces a more closed conformation of this hinge region in dimeric and monomeric TIM
Keywords keywords;ISOMERASE, GLYCOSOME, TIM-BARREL, GLYCOLYSIS, ENGINEERING, PENTOSE SHUNT, POINT MUTATION, TIM, 2PG, A178L, LOOP6, HINGE, LOOP-6, ENZYME, FATTY ACID BIOSYNTHESIS, TRIOSEPHOSPHATE ISOMERASE, GLUCONEOGENESIS, LIPID SYNTHESIS, 2-PHOSPHO GLYCOLLATE ;; ISOMERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.34
Radius of gyration Rg (electron density) rg_electron17.07
Forward intensity I(0) i013243900.00
Molecular weight molecular_weight27195.0 kDa
Excluded volume excluded_volume34087 ų
Envelope volume envelope_volume38264 ų
Hydration-shell volume shell_volume18351 ų
Envelope diameter envelope_diameter55.6
Shell Rg shell_rg23.60
Envelope Rg envelope_rg17.37
Shape Rg shape_rg17.04
Total Rg total_rg18.15
Total atoms total_atoms1910
Residues n_residues249
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_real18.21
Rg uncertainty (real space) rg_real_error0.23
I(0) (real space) i0_real1.3240e+07
I(0) uncertainty (real space) i0_real_error1.4880e+05
Rg (reciprocal space) rg_reciprocal18.23
I(0) (reciprocal space) i0_reciprocal13240000.0000
Solution quality estimate total_estimate0.9033
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.0
Skewness Skewness skewness0.090
Kurtosis Kurtosis kurtosis-0.464
Angular range angular_range— – 0.4350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2865000.0000
Real-space data points n_real_points75
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.925; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.976; Smooth: 0.986

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd2v2ca_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.1 — Triosephosphate isomerase (TIM)
Family Family familyc.1.1.1 — Triosephosphate isomerase (TIM)

CATH v4.4 (1 domains)

Domain ID domain_id2v2cA00
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I

8. Citations (1)

9. Files and Curves (10)