4twa

Crystal Structure of Prolyl-tRNA Synthetase (PRS) from Plasmodium falciparum

Method: X-RAY DIFFRACTION Dmax: 102.8 Å Quality: GOOD

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

Proline--tRNA ligase

Plasmodium falciparum

UniProt Q8I5R7

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 254–746 Chain B; UniProt 254–746 Fragment:UNP residues 254-746 CL CHLORIDE ION × 6 SO4 SULFATE ION × 11 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.6;293 K;0.8 M lithium sulphate monohydrate and 0.1 M sodium acetate Resolution 3.00 Å R-free 0.249
2 Protein homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 254–746 Chain B; UniProt 254–746 Fragment:UNP residues 254-746 CL CHLORIDE ION × 12 SO4 SULFATE ION × 22 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.6;293 K;0.8 M lithium sulphate monohydrate and 0.1 M sodium acetate Resolution 3.00 Å R-free 0.249

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.

14 other PDB entries and 24 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SYP_PLAF7
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 5–497; UniProt 254–746 Author chain B; PDBConstruct 5–497; UniProt 254–746

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 4twa

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id4twa
Deposition date deposition_date2014-06-30
Structure title titleCrystal Structure of Prolyl-tRNA Synthetase (PRS) from Plasmodium falciparum
Keywords keywordsProtein translation, Halofuginone, Malaria, Inhibitor, PRS, Synthetase, LIGASE; LIGASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier32.20
Radius of gyration Rg (electron density) rg_electron31.08
Forward intensity I(0) i0189222000.00
Molecular weight molecular_weight111620.0 kDa
Excluded volume excluded_volume140180 ų
Envelope volume envelope_volume172980 ų
Hydration-shell volume shell_volume45427 ų
Envelope diameter envelope_diameter109.2
Shell Rg shell_rg38.92
Envelope Rg envelope_rg31.17
Shape Rg shape_rg31.03
Total Rg total_rg31.91
Total atoms total_atoms7847
Residues n_residues968
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 dmax102.8
Rg (real space) rg_real32.04
Rg uncertainty (real space) rg_real_error0.61
I(0) (real space) i0_real1.8920e+08
I(0) uncertainty (real space) i0_real_error2.8590e+06
Rg (reciprocal space) rg_reciprocal32.11
I(0) (reciprocal space) i0_reciprocal189200000.0000
Solution quality estimate total_estimate0.8993
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary39.8
Skewness Skewness skewness0.190
Kurtosis Kurtosis kurtosis-0.490
Angular range angular_range— – 0.2450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha32050000.0000
Real-space data points n_real_points50
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.915; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.996; Smooth: 0.947

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id4twaA01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology930 — BirA Bifunctional Protein; domain 2
Homologous superfamily homologous superfamily10 — Bira Bifunctional Protein; Domain 2
Domain ID domain_id4twaA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily800 — Anticodon-binding domain
Domain ID domain_id4twaA03
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology110 — Translation Initiation Factor IF3
Homologous superfamily homologous superfamily30 — C-terminal domain of ProRS
Domain ID domain_id4twaB01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology930 — BirA Bifunctional Protein; domain 2
Homologous superfamily homologous superfamily10 — Bira Bifunctional Protein; Domain 2
Domain ID domain_id4twaB02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily800 — Anticodon-binding domain
Domain ID domain_id4twaB03
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology110 — Translation Initiation Factor IF3
Homologous superfamily homologous superfamily30 — C-terminal domain of ProRS

8. Citations (1)

9. Files and Curves (10)