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4v44

E. COLI (lacZ) BETA-GALACTOSIDASE IN COMPLEX WITH 2-F-LACTOSE

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

Beta-Galactosidase

Escherichia coli

UniProt P00722

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Homooligomer Protein 4 其他Polymer 4 2-deoxy-2-fluoro-beta-D-galactopyranose-(1-4)-beta-D-glucopyranose × 4 MAGNESIUM ION × 8 SODIUM ION × 8 water × 4 Consistent with protein count
2 Other combination Homooligomer Protein 4 其他Polymer 4 2-deoxy-2-fluoro-beta-D-galactopyranose-(1-4)-beta-D-glucopyranose × 4 MAGNESIUM ION × 8 SODIUM ION × 8 water × 4 Consistent with protein count
3 Other combination Homooligomer Protein 4 其他Polymer 4 2-deoxy-2-fluoro-beta-D-galactopyranose-(1-4)-beta-D-glucopyranose × 4 MAGNESIUM ION × 8 SODIUM ION × 8 water × 4 Consistent with protein count
4 Other combination Homooligomer Protein 4 其他Polymer 4 2-deoxy-2-fluoro-beta-D-galactopyranose-(1-4)-beta-D-glucopyranose × 4 MAGNESIUM ION × 8 SODIUM ION × 8 water × 4 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer
1dp0 1f4a 1f4h 1hn1 1jyv 1jyw 1jyx 1jz2 1jz3 1jz4 1jz5 1jz6

75 assemblies; showing the first 12

Other homooligomers
3czj

1 assemblies

Heteromeric or nucleic-acid complex
1jyn 1jz8 4ckd 4duw 4v44 4v44 4v44 4v44

8 assemblies

View Construct and Data Evidence
UniProt name BGAL_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–1023； UniProt 1–1023 Author chain B； PDBConstruct 1–1023； UniProt 1–1023 Author chain C； PDBConstruct 1–1023； UniProt 1–1023 Author chain D； PDBConstruct 1–1023； UniProt 1–1023 Author chain E； PDBConstruct 1–1023； UniProt 1–1023 Author chain F； PDBConstruct 1–1023； UniProt 1–1023 Author chain G； PDBConstruct 1–1023； UniProt 1–1023 Author chain H； PDBConstruct 1–1023； UniProt 1–1023 Author chain I； PDBConstruct 1–1023； UniProt 1–1023 Author chain J； PDBConstruct 1–1023； UniProt 1–1023 Author chain K； PDBConstruct 1–1023； UniProt 1–1023 Author chain L； PDBConstruct 1–1023； UniProt 1–1023 Author chain M； PDBConstruct 1–1023； UniProt 1–1023 Author chain N； PDBConstruct 1–1023； UniProt 1–1023 Author chain O； PDBConstruct 1–1023； UniProt 1–1023 Author chain P； PDBConstruct 1–1023； UniProt 1–1023

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_id4v44
Deposition date deposition_date2001-09-13
Structure title titleE. COLI (lacZ) BETA-GALACTOSIDASE IN COMPLEX WITH 2-F-LACTOSE
Keywords keywordsTIM BARREL (ALPHA/BETA BARREL), JELLY-ROLL BARREL, IMMUNOGLOBULIN, BETA SUPERSANDWICH, HYDROLASE; HYDROLASE
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.

4v44__assembly_1__model_1

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

Download this curve (.dat)

4v44__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.

4v44__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）52.58 Å
Rg (electron density)52.23 Å
Total Rg52.51 Å
Atom count32948
Residues4072
Excluded volume578520 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 4v44__assembly_1__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 4v44__assembly_2__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 4v44__assembly_3__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
4 1 4v44__assembly_4__model_1 tetrameric （4） 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 (5)

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7. Citations (5)