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2hxg

Crystal Structure of Mn2+ bound ECAI

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

L-arabinose isomerase

Escherichia coli

UniProt Q8FL89

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 6 MANGANESE (II) ION × 6 water × 6 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers
2hxg

1 assemblies

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name ARAA_ECOL6
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–500； UniProt 1–500 Author chain B； PDBConstruct 1–500； UniProt 1–500 Author chain C； PDBConstruct 1–500； UniProt 1–500

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_id2hxg
Deposition date deposition_date2006-08-03
Structure title titleCrystal Structure of Mn2+ bound ECAI
Keywords keywords;T2031, NYSGXRC, Isomerase, tagatose production, Structural Genomics, PSI-2, Protein Structure Initiative, New York SGX Research Center for Structural Genomics ;; ISOMERASE
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.

2hxg__assembly_1__model_1

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

Download this curve (.dat)

2hxg__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

2hxg__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）43.03 Å
Rg (electron density)42.09 Å
Total Rg42.47 Å
Atom count22924
Residues2988
Excluded volume404570 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2hxg__assembly_1__model_1 hexameric （6） 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 (3)

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6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (6 domains)

Domain ID domain_idd2hxga1
Class classb — All beta proteins
Fold Fold foldb.43 — Reductase/isomerase/elongation factor common domain
Superfamily Superfamily superfamilyb.43.2 — FucI/AraA C-terminal domain-like
Family Family familyb.43.2.2 — AraA C-terminal domain-like
Domain ID domain_idd2hxga2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.85 — FucI/AraA N-terminal and middle domains
Superfamily Superfamily superfamilyc.85.1 — FucI/AraA N-terminal and middle domains
Family Family familyc.85.1.2 — AraA N-terminal and middle domain-like
Domain ID domain_idd2hxgb1
Class classb — All beta proteins
Fold Fold foldb.43 — Reductase/isomerase/elongation factor common domain
Superfamily Superfamily superfamilyb.43.2 — FucI/AraA C-terminal domain-like
Family Family familyb.43.2.2 — AraA C-terminal domain-like
Domain ID domain_idd2hxgb2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.85 — FucI/AraA N-terminal and middle domains
Superfamily Superfamily superfamilyc.85.1 — FucI/AraA N-terminal and middle domains
Family Family familyc.85.1.2 — AraA N-terminal and middle domain-like
Domain ID domain_idd2hxgc1
Class classb — All beta proteins
Fold Fold foldb.43 — Reductase/isomerase/elongation factor common domain
Superfamily Superfamily superfamilyb.43.2 — FucI/AraA C-terminal domain-like
Family Family familyb.43.2.2 — AraA C-terminal domain-like
Domain ID domain_idd2hxgc2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.85 — FucI/AraA N-terminal and middle domains
Superfamily Superfamily superfamilyc.85.1 — FucI/AraA N-terminal and middle domains
Family Family familyc.85.1.2 — AraA N-terminal and middle domain-like

CATH v4.4 (3 domains)

Domain ID domain_id2hxgA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily10940 —
Domain ID domain_id2hxgB01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily10940 —
Domain ID domain_id2hxgC01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily10940 —
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7. Citations (1)