1jkx

Unexpected formation of an epoxide-derived multisubstrate adduct inhibitor on the active site of GAR transformylase

Method: X-RAY DIFFRACTION Dmax: 114.8 Å Quality: GOOD

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

PHOSPHORIBOSYLGLYCINAMIDE FORMYLTRANSFERASE

Escherichia coli

UniProt P08179

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 1–212 Chain B; UniProt 1–212 Fragment:TRANSFERASE 138 N-[5'-O-PHOSPHONO-RIBOFURANOSYL]-2-[2-HYDROXY-2-[4-[GLUTAMIC ACID]-N-CARBONYLPHENYL]-3-[2-AMINO-4-HYDROXY-QUINAZOLIN-6-YL]-PROPANYLAMINO]-ACETAMIDE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.4;295 K;PEG 3350, CaCl2, MPD, imidazole malate, PH 7.4, VAPOR DIFFUSION, SITTING DROP at 295K Resolution 1.60 Å R-free 0.243
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 1–212 Chain D; UniProt 1–212 Fragment:TRANSFERASE 138 N-[5'-O-PHOSPHONO-RIBOFURANOSYL]-2-[2-HYDROXY-2-[4-[GLUTAMIC ACID]-N-CARBONYLPHENYL]-3-[2-AMINO-4-HYDROXY-QUINAZOLIN-6-YL]-PROPANYLAMINO]-ACETAMIDE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.4;295 K;PEG 3350, CaCl2, MPD, imidazole malate, PH 7.4, VAPOR DIFFUSION, SITTING DROP at 295K Resolution 1.60 Å R-free 0.243

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.

8 other PDB entries and 12 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PUR3_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–212; UniProt 1–212 Author chain B; PDBConstruct 1–212; UniProt 1–212 Author chain C; PDBConstruct 1–212; UniProt 1–212 Author chain D; PDBConstruct 1–212; UniProt 1–212

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 1jkx

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1jkx
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1jkx
Deposition date deposition_date2001-07-13
Structure title titleUnexpected formation of an epoxide-derived multisubstrate adduct inhibitor on the active site of GAR transformylase
Keywords keywordsPURINE BIOSYNTHESIS, ANTI-CANCER AGENT, ENZYME-ASSEMBLED MULTISUBSTRATE ADDUCT INHIBITOR COMPLEX, TRANSFERASE; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier36.12
Radius of gyration Rg (electron density) rg_electron35.42
Forward intensity I(0) i0142525000.00
Molecular weight molecular_weight94607.0 kDa
Excluded volume excluded_volume117840 ų
Envelope volume envelope_volume160040 ų
Hydration-shell volume shell_volume38971 ų
Envelope diameter envelope_diameter116.8
Shell Rg shell_rg40.72
Envelope Rg envelope_rg34.55
Shape Rg shape_rg35.43
Total Rg total_rg35.74
Total atoms total_atoms6676
Residues n_residues836
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 dmax114.8
Rg (real space) rg_real36.00
Rg uncertainty (real space) rg_real_error1.02
I(0) (real space) i0_real1.4250e+08
I(0) uncertainty (real space) i0_real_error2.4240e+06
Rg (reciprocal space) rg_reciprocal36.08
I(0) (reciprocal space) i0_reciprocal142500000.0000
Solution quality estimate total_estimate0.8986
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary52.2
Skewness Skewness skewness0.079
Kurtosis Kurtosis kurtosis-0.676
Angular range angular_range— – 0.2200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha18070000.0000
Real-space data points n_real_points45
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: 0.989; Smooth: 0.940

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1jkxa_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.65 — Formyltransferase
Superfamily Superfamily superfamilyc.65.1 — Formyltransferase
Family Family familyc.65.1.1 — Formyltransferase
Domain ID domain_idd1jkxb_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.65 — Formyltransferase
Superfamily Superfamily superfamilyc.65.1 — Formyltransferase
Family Family familyc.65.1.1 — Formyltransferase
Domain ID domain_idd1jkxc_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.65 — Formyltransferase
Superfamily Superfamily superfamilyc.65.1 — Formyltransferase
Family Family familyc.65.1.1 — Formyltransferase
Domain ID domain_idd1jkxd_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.65 — Formyltransferase
Superfamily Superfamily superfamilyc.65.1 — Formyltransferase
Family Family familyc.65.1.1 — Formyltransferase

CATH v4.4 (4 domains)

Domain ID domain_id1jkxA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily170 — Formyl transferase, N-terminal domain
Domain ID domain_id1jkxB00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily170 — Formyl transferase, N-terminal domain
Domain ID domain_id1jkxC00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily170 — Formyl transferase, N-terminal domain
Domain ID domain_id1jkxD00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily170 — Formyl transferase, N-terminal domain

8. Citations (2)

9. Files and Curves (10)