← Back to search
3fr1

NFLVHS segment from Islet Amyloid Polypeptide (IAPP or Amylin)

Method: X-RAY DIFFRACTION
▼

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

Islet amyloid polypeptide

OrganismNot specified

UniProt P10997

State in the Current Structure

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

Other States of the Same Protein in the Database

Monomer
1kuw 2kb8 2l86 3fr1 5mgq 6ucj 6uck

7 assemblies

Homodimer
3fr1 3fr1

2 assemblies

Homotetramer

None

Other homooligomers
5knz 5ko0 6y1a 6zrf 6zrq 6zrr 7m61 7m62 7m64 7m65 7ykw 7yl0

39 assemblies; showing the first 12

Heteromeric or nucleic-acid complex
2g48 2g48 3g7v 3g7v 3g7w 3g7w 3hgz 3hgz 5k5g 6vw2 7bg0 7bg0

14 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name IAPP_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–6； UniProt 47–52

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_id3fr1
Deposition date deposition_date2009-01-08
Structure title titleNFLVHS segment from Islet Amyloid Polypeptide (IAPP or Amylin)
Keywords keywordsamyloid-like protofibril, Amidation, Amyloid, Cleavage on pair of basic residues, Hormone, Polymorphism, Secreted, PROTEIN FIBRIL; PROTEIN FIBRIL
Experimental Method methodX-RAY DIFFRACTION
▼

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.

3fr1__assembly_3__model_1

Assembly 3 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

3fr1__assembly_3__model_1 | I(q)

10-2 10-1 104 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

3fr1__assembly_3__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）8.40 Å
Rg (electron density)6.77 Å
Total Rg8.50 Å
Atom count52
Residues6
Excluded volume924 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3fr1__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 3fr1__assembly_2__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 3fr1__assembly_3__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (3)

▶

7. Citations (1)