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1onv

NMR Structure of a Complex Containing the TFIIF Subunit RAP74 and the RNAP II CTD Phosphatase FCP1

Method: SOLUTION NMR
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Transcription initiation factor IIF, alpha subunit

Homo sapiens

UniProt P35269

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 serine phosphatase FCP1a × 1 （Q9Y5B0） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1i27 1nha

2 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1f3u 1f3u 1f3u 1f3u 1j2x 1onv 2k7l 5iy6 5iy7 5iy8 5iy9 5iya

62 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name T2FA_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–82； UniProt 436–517

serine phosphatase FCP1a

Homo sapiens

UniProt Q9Y5B0

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Transcription initiation factor IIF, alpha subunit × 1 （P35269） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1j2x 1onv

2 assemblies

View Construct and Data Evidence
UniProt name CTDP1_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–83； UniProt 760–842

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_id1onv
Deposition date deposition_date2003-03-02
Structure title titleNMR Structure of a Complex Containing the TFIIF Subunit RAP74 and the RNAP II CTD Phosphatase FCP1
Keywords keywords;Transcription Factor, Human General Transcription Factor TFIIF, RAP74, RNA Polymerase II CTD Phosphatase, TFIIF-associating CTD Phosphatase, FCP1, TRANSCRIPTION ;; TRANSCRIPTION
Experimental Method methodSOLUTION NMR
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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.

1onv__assembly_1__model_9

Assembly 1 · Model 9 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1onv__assembly_1__model_9 | I(q)

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

1onv__assembly_1__model_9 | 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）14.39 Å
Rg (electron density)12.66 Å
Total Rg14.16 Å
Atom count1437
Residues88
Excluded volume12630 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1onv__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 1onv__assembly_1__model_2 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 1onv__assembly_1__model_3 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 1onv__assembly_1__model_4 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 1onv__assembly_1__model_5 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 1onv__assembly_1__model_6 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 1onv__assembly_1__model_7 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 1onv__assembly_1__model_8 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 1onv__assembly_1__model_9 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 1onv__assembly_1__model_10 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 11 1onv__assembly_1__model_11 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 12 1onv__assembly_1__model_12 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 13 1onv__assembly_1__model_13 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 14 1onv__assembly_1__model_14 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 15 1onv__assembly_1__model_15 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 16 1onv__assembly_1__model_16 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 17 1onv__assembly_1__model_17 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 18 1onv__assembly_1__model_18 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 19 1onv__assembly_1__model_19 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 20 1onv__assembly_1__model_20 dimeric （2） 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 (2)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1onva_
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.5 — 'Winged helix' DNA-binding domain
Family Family familya.4.5.30 — C-terminal domain of the rap74 subunit of TFIIF

CATH v4.4 (1 domains)

Domain ID domain_id1onvA00
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
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7. Citations (1)