7ktr

Cryo-EM structure of the human SAGA coactivator complex (TRRAP, core)

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

;Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein ;

OrganismNot specified

UniProt F2Z2U4

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 11 TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L × 1 (O75529) Isoform 3 of Transcription factor SPT20 homolog × 1 (Q8NEM7) ;STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA ; × 1 (O94864) Transcription initiation factor TFIID subunit 9B × 1 (Q9HBM6) TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L × 1 (Q9Y6J9) Transcription initiation factor TFIID subunit 12 × 1 (Q16514) Transcription initiation factor TFIID subunit 10 × 1 (Q12962) ;Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog ; × 1 (O75486) Transcriptional adapter 1 × 1 (Q96BN2) Ataxin-7 × 1 (O15265) INOSITOL HEXAKISPHOSPHATE × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name F2Z2U4_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 18–1337; UniProt 369–1688 Author chain A; PDBConstruct 1647–3195; UniProt 2300–3848

TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L

OrganismNot specified

UniProt O75529

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 11 ;Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein ; × 1 (F2Z2U4) Isoform 3 of Transcription factor SPT20 homolog × 1 (Q8NEM7) ;STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA ; × 1 (O94864) Transcription initiation factor TFIID subunit 9B × 1 (Q9HBM6) TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L × 1 (Q9Y6J9) Transcription initiation factor TFIID subunit 12 × 1 (Q16514) Transcription initiation factor TFIID subunit 10 × 1 (Q12962) ;Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog ; × 1 (O75486) Transcriptional adapter 1 × 1 (Q96BN2) Ataxin-7 × 1 (O15265) INOSITOL HEXAKISPHOSPHATE × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name TAF5L_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–589; UniProt 1–589

Isoform 3 of Transcription factor SPT20 homolog

OrganismNot specified

UniProt Q8NEM7

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 11 ;Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein ; × 1 (F2Z2U4) TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L × 1 (O75529) ;STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA ; × 1 (O94864) Transcription initiation factor TFIID subunit 9B × 1 (Q9HBM6) TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L × 1 (Q9Y6J9) Transcription initiation factor TFIID subunit 12 × 1 (Q16514) Transcription initiation factor TFIID subunit 10 × 1 (Q12962) ;Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog ; × 1 (O75486) Transcriptional adapter 1 × 1 (Q96BN2) Ataxin-7 × 1 (O15265) INOSITOL HEXAKISPHOSPHATE × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SP20H_HUMAN
Isoform Q8NEM7-3
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 1–811; UniProt 1–811

;STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA ;

unclassified Rhodococcus

UniProt O94864

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 11 ;Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein ; × 1 (F2Z2U4) TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L × 1 (O75529) Isoform 3 of Transcription factor SPT20 homolog × 1 (Q8NEM7) Transcription initiation factor TFIID subunit 9B × 1 (Q9HBM6) TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L × 1 (Q9Y6J9) Transcription initiation factor TFIID subunit 12 × 1 (Q16514) Transcription initiation factor TFIID subunit 10 × 1 (Q12962) ;Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog ; × 1 (O75486) Transcriptional adapter 1 × 1 (Q96BN2) Ataxin-7 × 1 (O15265) INOSITOL HEXAKISPHOSPHATE × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name ST65G_HUMAN
Isoform —
PDB entities 4
Chains and sequence ranges Author chain D; PDBConstruct 16–51; UniProt 52–87 Author chain D; PDBConstruct 74–369; UniProt 119–414

Transcription initiation factor TFIID subunit 9B

OrganismNot specified

UniProt Q9HBM6

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 11 ;Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein ; × 1 (F2Z2U4) TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L × 1 (O75529) Isoform 3 of Transcription factor SPT20 homolog × 1 (Q8NEM7) ;STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA ; × 1 (O94864) TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L × 1 (Q9Y6J9) Transcription initiation factor TFIID subunit 12 × 1 (Q16514) Transcription initiation factor TFIID subunit 10 × 1 (Q12962) ;Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog ; × 1 (O75486) Transcriptional adapter 1 × 1 (Q96BN2) Ataxin-7 × 1 (O15265) INOSITOL HEXAKISPHOSPHATE × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name TAF9B_HUMAN
Isoform —
PDB entities 5
Chains and sequence ranges Author chain E; PDBConstruct 1–251; UniProt 1–251

TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L

OrganismNot specified

UniProt Q9Y6J9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 11 ;Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein ; × 1 (F2Z2U4) TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L × 1 (O75529) Isoform 3 of Transcription factor SPT20 homolog × 1 (Q8NEM7) ;STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA ; × 1 (O94864) Transcription initiation factor TFIID subunit 9B × 1 (Q9HBM6) Transcription initiation factor TFIID subunit 12 × 1 (Q16514) Transcription initiation factor TFIID subunit 10 × 1 (Q12962) ;Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog ; × 1 (O75486) Transcriptional adapter 1 × 1 (Q96BN2) Ataxin-7 × 1 (O15265) INOSITOL HEXAKISPHOSPHATE × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name TAF6L_HUMAN
Isoform —
PDB entities 6
Chains and sequence ranges Author chain F; PDBConstruct 1–622; UniProt 1–622

Transcription initiation factor TFIID subunit 12

OrganismNot specified

UniProt Q16514

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 11 ;Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein ; × 1 (F2Z2U4) TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L × 1 (O75529) Isoform 3 of Transcription factor SPT20 homolog × 1 (Q8NEM7) ;STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA ; × 1 (O94864) Transcription initiation factor TFIID subunit 9B × 1 (Q9HBM6) TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L × 1 (Q9Y6J9) Transcription initiation factor TFIID subunit 10 × 1 (Q12962) ;Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog ; × 1 (O75486) Transcriptional adapter 1 × 1 (Q96BN2) Ataxin-7 × 1 (O15265) INOSITOL HEXAKISPHOSPHATE × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name TAF12_HUMAN
Isoform —
PDB entities 7
Chains and sequence ranges Author chain G; PDBConstruct 1–161; UniProt 1–161

Transcription initiation factor TFIID subunit 10

OrganismNot specified

UniProt Q12962

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 11 ;Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein ; × 1 (F2Z2U4) TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L × 1 (O75529) Isoform 3 of Transcription factor SPT20 homolog × 1 (Q8NEM7) ;STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA ; × 1 (O94864) Transcription initiation factor TFIID subunit 9B × 1 (Q9HBM6) TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L × 1 (Q9Y6J9) Transcription initiation factor TFIID subunit 12 × 1 (Q16514) ;Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog ; × 1 (O75486) Transcriptional adapter 1 × 1 (Q96BN2) Ataxin-7 × 1 (O15265) INOSITOL HEXAKISPHOSPHATE × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name TAF10_HUMAN
Isoform —
PDB entities 8
Chains and sequence ranges Author chain H; PDBConstruct 1–218; UniProt 1–218

;Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog ;

OrganismNot specified

UniProt O75486

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 11 ;Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein ; × 1 (F2Z2U4) TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L × 1 (O75529) Isoform 3 of Transcription factor SPT20 homolog × 1 (Q8NEM7) ;STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA ; × 1 (O94864) Transcription initiation factor TFIID subunit 9B × 1 (Q9HBM6) TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L × 1 (Q9Y6J9) Transcription initiation factor TFIID subunit 12 × 1 (Q16514) Transcription initiation factor TFIID subunit 10 × 1 (Q12962) Transcriptional adapter 1 × 1 (Q96BN2) Ataxin-7 × 1 (O15265) INOSITOL HEXAKISPHOSPHATE × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SUPT3_HUMAN
Isoform —
PDB entities 9
Chains and sequence ranges Author chain I; PDBConstruct 1–156; UniProt 1–156 Author chain I; PDBConstruct 169–299; UniProt 187–317

Transcriptional adapter 1

OrganismNot specified

UniProt Q96BN2

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 11 ;Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein ; × 1 (F2Z2U4) TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L × 1 (O75529) Isoform 3 of Transcription factor SPT20 homolog × 1 (Q8NEM7) ;STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA ; × 1 (O94864) Transcription initiation factor TFIID subunit 9B × 1 (Q9HBM6) TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L × 1 (Q9Y6J9) Transcription initiation factor TFIID subunit 12 × 1 (Q16514) Transcription initiation factor TFIID subunit 10 × 1 (Q12962) ;Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog ; × 1 (O75486) Ataxin-7 × 1 (O15265) INOSITOL HEXAKISPHOSPHATE × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name TADA1_HUMAN
Isoform —
PDB entities 10
Chains and sequence ranges Author chain J; PDBConstruct 1–335; UniProt 1–335

Ataxin-7

OrganismNot specified

UniProt O15265

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 11 ;Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein,Transformation/transcription domain-associated protein ; × 1 (F2Z2U4) TAF5-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 5L × 1 (O75529) Isoform 3 of Transcription factor SPT20 homolog × 1 (Q8NEM7) ;STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA,STAGA complex 65 subunit gamma,STAGA complex 65 subunit gamma,DhaA ; × 1 (O94864) Transcription initiation factor TFIID subunit 9B × 1 (Q9HBM6) TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L × 1 (Q9Y6J9) Transcription initiation factor TFIID subunit 12 × 1 (Q16514) Transcription initiation factor TFIID subunit 10 × 1 (Q12962) ;Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog,Transcription initiation protein SPT3 homolog ; × 1 (O75486) Transcriptional adapter 1 × 1 (Q96BN2) INOSITOL HEXAKISPHOSPHATE × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name ATX7_HUMAN
Isoform —
PDB entities 11
Chains and sequence ranges Author chain N; PDBConstruct 1–892; UniProt 1–892

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_id7ktr
Deposition date deposition_date2020-11-24
Structure title titleCryo-EM structure of the human SAGA coactivator complex (TRRAP, core)
Keywords keywordscoactivator, gene regulation, transcription, chromatin; TRANSCRIPTION
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.

7ktr__assembly_1__model_1

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

Download this curve (.dat)

7ktr__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

7ktr__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)64.28 Å
Rg (electron density)64.05 Å
Total Rg64.04 Å
Atom count79321
Residues5168
Excluded volume717350 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 7ktr__assembly_1__model_1 undecameric (11) 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 (12)

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6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id7ktrB01
Class class1 — Mainly Alpha
Architecture architecture25 — Alpha Horseshoe
Topology topology40 — Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Homologous superfamily homologous superfamily500 — TFIID subunit TAF5, NTD2 domain
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7. Citations (1)