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2c1w

The structure of XendoU: a splicing independent snoRNA processing endoribonuclease

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

ENDOU PROTEIN

XENOPUS LAEVIS

UniProt Q8JFY9

State in the Current Structure

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

Other States of the Same Protein in the Database

Monomer
2c1w 2c1w 2c1w

3 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name Q8JFY9_XENLA
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–292； UniProt 1–292 Author chain B； PDBConstruct 1–292； UniProt 1–292 Author chain C； PDBConstruct 1–292； UniProt 1–292

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_id2c1w
Deposition date deposition_date2005-09-21
Structure title titleThe structure of XendoU: a splicing independent snoRNA processing endoribonuclease
Keywords keywordsNUCLEASE, SNORNA, ENDORIBONUCLEASE, SPLICING INDEPENDENT PROCESSING; NUCLEASE
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.

2c1w__assembly_1__model_1

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

Download this curve (.dat)

2c1w__assembly_1__model_1 | I(q)

10-2 10-1 105 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

2c1w__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）19.54 Å
Rg (electron density)18.10 Å
Total Rg19.25 Å
Atom count2252
Residues273
Excluded volume39919 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2c1w__assembly_1__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 2c1w__assembly_2__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 2c1w__assembly_3__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) 3 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd2c1wa1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.294 — EndoU-like
Superfamily Superfamily superfamilyd.294.1 — EndoU-like
Family Family familyd.294.1.1 — Eukaryotic EndoU ribonuclease
Domain ID domain_idd2c1wb_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.294 — EndoU-like
Superfamily Superfamily superfamilyd.294.1 — EndoU-like
Family Family familyd.294.1.1 — Eukaryotic EndoU ribonuclease
Domain ID domain_idd2c1wc_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.294 — EndoU-like
Superfamily Superfamily superfamilyd.294.1 — EndoU-like
Family Family familyd.294.1.1 — Eukaryotic EndoU ribonuclease
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7. Citations (1)