1s4b

Crystal structure of human thimet oligopeptidase.

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

Thimet oligopeptidase

Homo sapiens

UniProt P52888

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name MEPD_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain P; PDBConstruct 1–674; UniProt 15–688

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_id1s4b
Deposition date deposition_date2004-01-15
Structure title titleCrystal structure of human thimet oligopeptidase.
Keywords keywordsZinc metallopeptidase domain, HYDROLASE; HYDROLASE
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.

1s4b__assembly_1__model_1

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

Download this curve (.dat)

1s4b__assembly_1__model_1 | I(q)

10-2 10-1 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1s4b__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)27.66 Å
Rg (electron density)26.53 Å
Total Rg27.38 Å
Atom count5305
Residues654
Excluded volume94042 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1s4b__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) 4 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1s4bp_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.92 — Zincin-like
Superfamily Superfamily superfamilyd.92.1 — Metalloproteases ('zincins'), catalytic domain
Family Family familyd.92.1.5 — Neurolysin-like

CATH v4.4 (3 domains)

Domain ID domain_id1s4bP01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1050 — Glutathione S-transferase Yfyf (Class Pi); Chain A, domain 2
Homologous superfamily homologous superfamily40 — Endopeptidase. Chain P; domain 1
Domain ID domain_id1s4bP02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1370 — Neurolysin; domain 3
Homologous superfamily homologous superfamily10 — Neurolysin, domain 3
Domain ID domain_id1s4bP03
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology390 — Collagenase (Catalytic Domain)
Homologous superfamily homologous superfamily10 — Collagenase (Catalytic Domain)
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7. Citations (3)