1pfo

PERFRINGOLYSIN O

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

PERFRINGOLYSIN O

Clostridium perfringens

UniProt P19995

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name TACY_CLOPE
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; 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_id1pfo
Deposition date deposition_date1997-07-31
Structure title titlePERFRINGOLYSIN O
Keywords keywordsTOXIN, THIOL-ACTIVATED CYTOLYSIN, HEMOLYSIS, CYTOLYSIS; TOXIN
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.

1pfo__assembly_1__model_1

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

Download this curve (.dat)

1pfo__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.

1pfo__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)39.44 Å
Rg (electron density)40.05 Å
Total Rg40.14 Å
Atom count7410
Residues942
Excluded volume131380 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1pfo__assembly_1__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 (2)

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1pfoa1
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.69 — Perfringolysin N-terminal-like
Superfamily Superfamily superfamilyf.69.1 — Perfringolysin N-terminal-like
Family Family familyf.69.1.1 — Perfringolysin N-terminal-like
Domain ID domain_idd1pfoa2
Class classb — All beta proteins
Fold Fold foldb.183 — Perfringolysin C-terminal-like
Superfamily Superfamily superfamilyb.183.1 — Perfringolysin C-terminal-like
Family Family familyb.183.1.1 — Perfringolysin C-terminal-like

CATH v4.4 (4 domains)

Domain ID domain_id1pfoA01
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology840 — HIV-1 Reverse Transcriptase; Chain A, domain 3
Homologous superfamily homologous superfamily10 — Thiol-activated cytolysin superfamily/Thiol-activated cytolysin, alpha-beta domain
Domain ID domain_id1pfoA02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1040 — Carboxypeptidase Inhibitor; Chain A
Homologous superfamily homologous superfamily20 —
Domain ID domain_id1pfoA03
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology30 — Glutaredoxin
Homologous superfamily homologous superfamily40 — Perfringolysin
Domain ID domain_id1pfoA04
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily1430 — Perfringolysin, domain 4
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7. Citations (1)