7os2

Cryo-EM structure of Brr2 in complex with Jab1/MPN and C9ORF78

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

U5 small nuclear ribonucleoprotein 200 kDa helicase

Homo sapiens

UniProt O75643

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 Telomere length and silencing protein 1 homolog × 1 (Q9NZ63) Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name U520_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain B; PDBConstruct 4–1739; UniProt 394–2129

Telomere length and silencing protein 1 homolog

Homo sapiens

UniProt Q9NZ63

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name TLS1_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 5–293; UniProt 1–289

Pre-mRNA-processing-splicing factor 8

Homo sapiens

UniProt Q6P2Q9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) Telomere length and silencing protein 1 homolog × 1 (Q9NZ63) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PRP8_HUMAN
Isoform —
PDB entities 3
Chains and sequence ranges Author chain J; PDBConstruct 7–278; UniProt 2064–2335

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_id7os2
Deposition date deposition_date2021-06-07
Structure title titleCryo-EM structure of Brr2 in complex with Jab1/MPN and C9ORF78
Keywords keywordsmRNA Splicing, Spliceosomal Assembly, Splicing Regulation, Brr2 Helicase, SPLICING; SPLICING
Experimental Method methodELECTRON MICROSCOPY
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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.

7os2__assembly_1__model_1

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

Download this curve (.dat)

7os2__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.

7os2__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)43.64 Å
Rg (electron density)43.08 Å
Total Rg43.35 Å
Atom count16485
Residues2046
Excluded volume294990 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 7os2__assembly_1__model_1 trimeric (3) 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) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id7os2B01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
Domain ID domain_id7os2B02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id7os2B03
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id7os2B04
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily150 — C2 domain
Domain ID domain_id7os2B05
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id7os2B06
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
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7. Citations (2)