1ppa

THE CRYSTAL STRUCTURE OF A LYSINE 49 PHOSPHOLIPASE A2 FROM THE VENOM OF THE COTTONMOUTH SNAKE AT 2.0 ANGSTROMS RESOLUTION

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

PHOSPHOLIPASE A2

Agkistrodon piscivorus piscivorus

UniProt P04361

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PA2H_AGKPI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–121; UniProt 1–121

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_id1ppa
Deposition date deposition_date1991-10-29
Structure title titleTHE CRYSTAL STRUCTURE OF A LYSINE 49 PHOSPHOLIPASE A2 FROM THE VENOM OF THE COTTONMOUTH SNAKE AT 2.0 ANGSTROMS RESOLUTION
Keywords keywordsHYDROLASE(CARBOXYLIC ESTERASE); HYDROLASE(CARBOXYLIC ESTERASE)
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.

1ppa__assembly_1__model_1

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

Download this curve (.dat)

1ppa__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.

1ppa__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)15.01 Å
Rg (electron density)14.29 Å
Total Rg15.43 Å
Atom count975
Residues121
Excluded volume17403 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1ppa__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 (3)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1ppaa_
Class classa — All alpha proteins
Fold Fold folda.133 — Phospholipase A2, PLA2
Superfamily Superfamily superfamilya.133.1 — Phospholipase A2, PLA2
Family Family familya.133.1.2 — Vertebrate phospholipase A2

CATH v4.4 (1 domains)

Domain ID domain_id1ppaA00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology90 — Phospholipase A2
Homologous superfamily homologous superfamily10 — Phospholipase A2 domain
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7. Citations (1)