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X - Possible homology level

H - Homology level

T - Topology level

F - Family level

* - Provisional representative


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Evolutionary classification of protein domain structures

alpha arraysalpha-helix arrays with mainly perpendicular helices

alpha bundlesalpha-helix bundles with mainly parallel helices

alpha superhelicesrepeating alpha-helix hairpins form a superhelix

alpha duplicates or obligate multimersalpha duplicates or monomers associate together to form a compact domain

alpha complex topologyalpha domain with complex and unique topology that cannot be described as array or bundle or superhelix

beta barrelssingle beta-sheet folded upon itself to form a barrel

beta meanderssingle beta-sheet with mainly meander topology

beta sandwichestwo beta-sheets stacked together to form a sandwich

beta duplicates or obligate multimersbeta duplicates or monomers associate together to form a compact domain

beta complex topologybeta domains with complex and unique topology that cannot be described as barrel or sandwich or meander

X: triple barrel
H: triple barrel
T: Rap30/74 interaction domains-like
F: TFIIF_alpha

PF05793 CL0123

Representatives:

e1f3uD1[D:7-153] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRANSCRIPTION INITIATION FACTOR IIF, ALPHA SUBUNIT ; X-RAY DIFFRACTION 1.7Å

e1f3uH1[H:7-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRANSCRIPTION INITIATION FACTOR IIF, ALPHA SUBUNIT ; X-RAY DIFFRACTION 1.7Å

e5oqmQ1[Q:21-35,Q:97-142,Q:327-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e7ui9P1[P:95-142,P:348-399] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e5fmfU1[U:94-396] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA POLYMERASE II PRE-INITIATION COMPLEX, TFG1 ; ELECTRON MICROSCOPY

e5fywQ1[Q:21-35,Q:97-142,Q:327-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRANSCRIPTION INITIATION FACTOR IIF SUBUNIT ALPHA ; ELECTRON MICROSCOPY

e7uifP1[P:95-142,P:348-399] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e7uioAP1[AP:95-142,AP:348-399] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e4v1nQ1[Q:92-143,Q:343-412] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRANSCRIPTION INITIATION FACTOR IIF SUBUNIT ALPHA ; ELECTRON MICROSCOPY

e5fz5Q1[Q:21-35,Q:97-142,Q:327-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRANSCRIPTION INITIATION FACTOR IIF SUBUNIT ALPHA ; ELECTRON MICROSCOPY

e7uioBP1[BP:95-142,BP:348-399] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e5iy6S1[S:5-54,S:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e5iy7S1[S:5-54,S:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e5iy8S1[S:5-54,S:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e5iy9S1[S:5-54,S:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e5iyaS1[S:5-54,S:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e5iybS1[S:5-54,S:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e5iycS1[S:5-54,S:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e5iydS1[S:5-54,S:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e5svaf1[f:99-142,f:327-417] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e5oqjQ1[Q:21-35,Q:97-142,Q:327-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e6gykQ1[Q:21-35,Q:97-142,Q:327-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e6gylQ1[Q:21-35,Q:97-142,Q:327-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e6gymQ1[Q:21-35,Q:97-142,Q:327-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e7lbmS1[S:19-54,S:93-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7edxS1[S:5-54,S:93-176] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7eg7S1[S:5-54,S:93-176] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7eg8S1[S:5-54,S:93-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7eg9S1[S:5-54,S:93-176] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7egaS1[S:5-54,S:93-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7egbS1[S:5-54,S:93-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7nvrQ1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7nvsQ1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7nvtQ1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7nvuQ1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7nvyQ1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7nvzQ1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7nw0Q1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7egcS1[S:5-54,S:93-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7enaFA1[FA:5-54,FA:93-176] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7encFA1[FA:5-54,FA:93-176] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7ml0Q1[Q:21-35,Q:97-142,Q:327-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e7ml1Q1[Q:21-35,Q:97-142,Q:327-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e7ml2Q1[Q:21-35,Q:97-142,Q:327-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e7ml4Q1[Q:21-35,Q:97-142,Q:327-415] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIF subunit alpha ; ELECTRON MICROSCOPY

e8gxqFA1[FA:5-54,FA:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e8gxsFA1[FA:5-54,FA:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7zwdQ1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7zx7Q1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e7zx8Q1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e8bvwQ1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e8byqQ1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e8bz1Q1[Q:5-54,Q:93-180] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIF subunit 1 ; ELECTRON MICROSCOPY

e1f3uF1[F:5-153] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRANSCRIPTION INITIATION FACTOR IIF, ALPHA SUBUNIT ; X-RAY DIFFRACTION 1.7Å

e4v1oQ1[Q:92-143,Q:343-412] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRANSCRIPTION INITIATION FACTOR IIF SUBUNIT ALPHA ; ELECTRON MICROSCOPY

F: Unmapped domains

Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.

a+b two layersone alpha-helix layer and one beta-sheet layer

a+b three layersone mainly antiparallel beta-sheet layer sandwiched between two alpha-helix layers

a+b four layerstwo beta-sheet layers sandwiched between two alpha-helix layers

a+b complex topologyalpha and beta domain with complex and unique topology that cannot be described in layers

a+b duplicates or obligate multimersalpha and beta duplicates or monomers associated together to form a compact domain

a/b barrelsrepeating beta-alpha units form a barrel

a/b three-layered sandwichesrepeating beta-alpha units form a sandwich with a mainly parallel beta-sheet layer stacked between two alpha-helix layers

mixed a+b and a/balpha and beta domain consists of both a+b and a/b regions

few secondary structure elementsstabilized by cofactors or disulfides

extended segmentsextended, non-globular segments, frequently bind to other proteins to form complexes