1kzf

Crystal Structure of the Acyl-homoserine Lactone Synthase, EsaI

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

acyl-homoserinelactone synthase EsaI

Pantoea stewartii subsp. stewartii

UniProt P54656

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name ESAI_ERWST
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 21–230; UniProt 1–210

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_id1kzf
Deposition date deposition_date2002-02-06
Structure title titleCrystal Structure of the Acyl-homoserine Lactone Synthase, EsaI
Keywords keywordsalpha-beta, autoinducer synthase, acylhomoserine lactone, quorum sensing, bacterial pathogenesis, 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.

1kzf__assembly_1__model_1

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

Download this curve (.dat)

1kzf__assembly_1__model_1 | I(q)

10-2 10-1 105 106 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1kzf__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)17.95 Å
Rg (electron density)16.57 Å
Total Rg17.61 Å
Atom count1549
Residues198
Excluded volume27631 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1kzf__assembly_1__model_1 monomeric (1) 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 (2)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1kzfa_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.108 — Acyl-CoA N-acyltransferases (Nat)
Superfamily Superfamily superfamilyd.108.1 — Acyl-CoA N-acyltransferases (Nat)
Family Family familyd.108.1.3 — Autoinducer synthetase

CATH v4.4 (1 domains)

Domain ID domain_id1kzfA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology630 — Aminopeptidase
Homologous superfamily homologous superfamily30 — Gcn5-related N-acetyltransferase (GNAT)
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7. Citations (2)