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1evl

CRYSTAL STRUCTURE OF A TRUNCATED FORM OF THREONYL-TRNA SYNTHETASE WITH A THREONYL ADENYLATE ANALOG

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

THREONYL-TRNA SYNTHETASE

Escherichia coli

UniProt P0A8M3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 2 ZINC ION × 2 5'-O-(N-(L-THREONYL)-SULFAMOYL)ADENOSINE × 2 water × 2 Consistent with protein count
2 Protein homooligomer Homooligomer Protein 2 ZINC ION × 2 5'-O-(N-(L-THREONYL)-SULFAMOYL)ADENOSINE × 2 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1tje 1tke 1tkg 1tky

4 assemblies

Homodimer
1evk 1evl 1evl 1fyf 4hwo 4hwp 4hwr 4hws 4p3o 4p3p 8h98

11 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1kog 1kog 1kog 1kog 1kog 1qf6

6 assemblies

View Construct and Data Evidence
UniProt name SYT_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–401； UniProt 242–642 Author chain B； PDBConstruct 1–401； UniProt 242–642 Author chain C； PDBConstruct 1–401； UniProt 242–642 Author chain D； PDBConstruct 1–401； UniProt 242–642

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id1evl
Deposition date deposition_date2000-04-20
Structure title titleCRYSTAL STRUCTURE OF A TRUNCATED FORM OF THREONYL-TRNA SYNTHETASE WITH A THREONYL ADENYLATE ANALOG
Keywords keywordsAmino acid recognition, zinc ion, tRNA-synthetase, adenylate analog, deletion mutant, LIGASE; LIGASE
Experimental Method methodX-RAY DIFFRACTION
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

1evl__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1evl__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1evl__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）28.50 Å
Rg (electron density)27.32 Å
Total Rg28.18 Å
Atom count6595
Residues802
Excluded volume116700 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1evl__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1evl__assembly_2__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (4)

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6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

Domain ID domain_idd1evla1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.51 — Anticodon-binding domain-like
Superfamily Superfamily superfamilyc.51.1 — Class II aaRS ABD-related
Family Family familyc.51.1.1 — Anticodon-binding domain of Class II aaRS
Domain ID domain_idd1evla2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.104 — Class II aaRS and biotin synthetases
Superfamily Superfamily superfamilyd.104.1 — Class II aaRS and biotin synthetases
Family Family familyd.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain
Domain ID domain_idd1evlb1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.51 — Anticodon-binding domain-like
Superfamily Superfamily superfamilyc.51.1 — Class II aaRS ABD-related
Family Family familyc.51.1.1 — Anticodon-binding domain of Class II aaRS
Domain ID domain_idd1evlb2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.104 — Class II aaRS and biotin synthetases
Superfamily Superfamily superfamilyd.104.1 — Class II aaRS and biotin synthetases
Family Family familyd.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain
Domain ID domain_idd1evlc1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.51 — Anticodon-binding domain-like
Superfamily Superfamily superfamilyc.51.1 — Class II aaRS ABD-related
Family Family familyc.51.1.1 — Anticodon-binding domain of Class II aaRS
Domain ID domain_idd1evlc2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.104 — Class II aaRS and biotin synthetases
Superfamily Superfamily superfamilyd.104.1 — Class II aaRS and biotin synthetases
Family Family familyd.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain
Domain ID domain_idd1evld1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.51 — Anticodon-binding domain-like
Superfamily Superfamily superfamilyc.51.1 — Class II aaRS ABD-related
Family Family familyc.51.1.1 — Anticodon-binding domain of Class II aaRS
Domain ID domain_idd1evld2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.104 — Class II aaRS and biotin synthetases
Superfamily Superfamily superfamilyd.104.1 — Class II aaRS and biotin synthetases
Family Family familyd.104.1.1 — Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain

CATH v4.4 (8 domains)

Domain ID domain_id1evlA01
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_id1evlA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily800 — Anticodon-binding domain
Domain ID domain_id1evlB01
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_id1evlB02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily800 — Anticodon-binding domain
Domain ID domain_id1evlC01
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_id1evlC02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily800 — Anticodon-binding domain
Domain ID domain_id1evlD01
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_id1evlD02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily800 — Anticodon-binding domain
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7. Citations (2)