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4fbi

Crystal Structure of an R46A mutant of the Restriction-Modification Controller Protein C.Esp1396I (Trigonal Form)

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

Regulatory protein

Enterobacter sp.

UniProt Q8GGH0

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 2 GLYCEROL × 1 water × 2 Consistent with protein count
2 Protein homooligomer Homooligomer Protein 2 GLYCEROL × 1 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer
3fya 3g5g 3g5g 3g5g 3g5g 3g5g 3g5g 3g5g 4f8d 4f8d 4fbi 4fbi

22 assemblies; showing the first 12

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
3clc 3s8q 3ufd 3ufd 4i8t 4ivz 4ivz 4iwr 4iwr 4x4b 4x4c 4x4d

17 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name Q8GGH0_9ENTR
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 4–82； UniProt 1–79 Author chain B； PDBConstruct 4–82； UniProt 1–79 Author chain C； PDBConstruct 4–82； UniProt 1–79 Author chain D； PDBConstruct 4–82； UniProt 1–79

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_id4fbi
Deposition date deposition_date2012-05-23
Structure title titleCrystal Structure of an R46A mutant of the Restriction-Modification Controller Protein C.Esp1396I (Trigonal Form)
Keywords keywordsRestriction-modification, helix-turn-helix, transcriptional regulator, DNA, TRANSCRIPTION; TRANSCRIPTION
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.

4fbi__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

4fbi__assembly_2__model_1 | I(q)

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

4fbi__assembly_2__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）16.79 Å
Rg (electron density)15.33 Å
Total Rg16.44 Å
Atom count1208
Residues150
Excluded volume22256 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 4fbi__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 4fbi__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 (3)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd4fbia_
Class classa — All alpha proteins
Fold Fold folda.35 — lambda repressor-like DNA-binding domains
Superfamily Superfamily superfamilya.35.1 — lambda repressor-like DNA-binding domains
Family Family familya.35.1.0 — automated matches
Domain ID domain_idd4fbib_
Class classa — All alpha proteins
Fold Fold folda.35 — lambda repressor-like DNA-binding domains
Superfamily Superfamily superfamilya.35.1 — lambda repressor-like DNA-binding domains
Family Family familya.35.1.0 — automated matches
Domain ID domain_idd4fbic_
Class classa — All alpha proteins
Fold Fold folda.35 — lambda repressor-like DNA-binding domains
Superfamily Superfamily superfamilya.35.1 — lambda repressor-like DNA-binding domains
Family Family familya.35.1.0 — automated matches
Domain ID domain_idd4fbid_
Class classa — All alpha proteins
Fold Fold folda.35 — lambda repressor-like DNA-binding domains
Superfamily Superfamily superfamilya.35.1 — lambda repressor-like DNA-binding domains
Family Family familya.35.1.0 — automated matches

CATH v4.4 (4 domains)

Domain ID domain_id4fbiA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology260 — 434 Repressor (Amino-terminal Domain)
Homologous superfamily homologous superfamily40 — lambda repressor-like DNA-binding domains
Domain ID domain_id4fbiB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology260 — 434 Repressor (Amino-terminal Domain)
Homologous superfamily homologous superfamily40 — lambda repressor-like DNA-binding domains
Domain ID domain_id4fbiC00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology260 — 434 Repressor (Amino-terminal Domain)
Homologous superfamily homologous superfamily40 — lambda repressor-like DNA-binding domains
Domain ID domain_id4fbiD00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology260 — 434 Repressor (Amino-terminal Domain)
Homologous superfamily homologous superfamily40 — lambda repressor-like DNA-binding domains
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7. Citations (3)