7ufg

Cryo-EM structure of PAPP-A in complex with IGFBP5

Method: ELECTRON MICROSCOPY
▼

1. Protein Identity and Related Structures Protein Identity & Related Structures

Pappalysin-1

Homo sapiens

UniProt Q13219

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Insulin-like growth factor-binding protein 5 × 2 (P24593) ZINC ION × 2 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PAPP1_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–1547; UniProt 81–1627 Author chain B; PDBConstruct 1–1547; UniProt 81–1627

Insulin-like growth factor-binding protein 5

Homo sapiens

UniProt P24593

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Pappalysin-1 × 2 (Q13219) ZINC ION × 2 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name IBP5_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 10–261; UniProt 21–272 Author chain D; PDBConstruct 10–261; UniProt 21–272

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id7ufg
Deposition date deposition_date2022-03-22
Structure title titleCryo-EM structure of PAPP-A in complex with IGFBP5
Keywords keywordsMetalloprotease, Metal-binding, HYDROLASE, HYDROLASE-Hormone complex; HYDROLASE/Hormone
Experimental Method methodELECTRON MICROSCOPY
▼

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.

7ufg__assembly_1__model_1

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

Download this curve (.dat)

7ufg__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.

7ufg__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)52.81 Å
Rg (electron density)53.06 Å
Total Rg53.19 Å
Atom count33028
Residues2378
Excluded volume320940 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 7ufg__assembly_1__model_1 tetrameric (4) Success 4.1.3-1-20251215 (887e7ef) View Download
▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (3)

▼

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id7ufgA01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily200 —
Domain ID domain_id7ufgB01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily200 —
▶

7. Citations (1)