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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

X: HTH
H: HTH
T: winged
F: TFIIE_alpha

PF02002 CL0123

Representatives:

e1q1hA1[A:1-88] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription Factor E ; X-RAY DIFFRACTION 2.90Å

e7od9F1[F:268-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

C-terminal domain of CheF from Methanococcus maripaludis ; ligands: BEF ; X-RAY DIFFRACTION 2.3Å

e6kf9G1[G:4-84] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription factor E ; ELECTRON MICROSCOPY

e5fywW2[W:6-99] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRANSCRIPTION INITIATION FACTOR IIE SUBUNIT ALPHA ; ELECTRON MICROSCOPY

e5iy6Q2[Q:11-100,Q:175-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e5fmfR1[R:12-95] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRANSCRIPTION INITIATION FACTOR IIE SUBUNIT ALPHA, TFA1 ; ELECTRON MICROSCOPY

e5iy8Q2[Q:11-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e5iyaQ2[Q:11-100,Q:175-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e5iycQ2[Q:11-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e5iy7Q2[Q:11-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e5iy9Q2[Q:11-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e5iybQ2[Q:11-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e5iydQ1[Q:11-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e5svah2[h:12-95] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIE subunit alpha ; ELECTRON MICROSCOPY

e5gpyA1[A:10-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; X-RAY DIFFRACTION 2.10Å

e5fz5W2[W:6-99] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRANSCRIPTION INITIATION FACTOR IIE SUBUNIT ALPHA ; ELECTRON MICROSCOPY

e6gylW2[W:4-99,W:170-194] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIE subunit alpha,Tfa1,Tfa1 ; ELECTRON MICROSCOPY

e6kf4G1[G:4-86] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription factor E ; ELECTRON MICROSCOPY

e6plnA1[A:5-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription factor E ; X-RAY DIFFRACTION 2.6Å

e6xjfA1[A:8-109] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription factor E ; X-RAY DIFFRACTION 3.1Å

e6xjfB1[B:7-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription factor E ; X-RAY DIFFRACTION 3.1Å

e6xjfC1[C:7-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription factor E ; X-RAY DIFFRACTION 3.1Å

e6xjfD1[D:8-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription factor E ; X-RAY DIFFRACTION 3.1Å

e6xjfE1[E:7-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription factor E ; X-RAY DIFFRACTION 3.1Å

e6xjfF1[F:7-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription factor E ; X-RAY DIFFRACTION 3.1Å

e6xjfG1[G:4-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription factor E ; X-RAY DIFFRACTION 3.1Å

e6xjfH1[H:7-88] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription factor E ; X-RAY DIFFRACTION 3.1Å

e7lbmQ2[Q:11-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7eg9U2[U:11-100,U:175-203] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7egaU1[U:11-100,U:175-203] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7egbU2[U:11-100,U:175-203] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7nvrW2[W:10-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7nvsW2[W:10-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7nvtW2[W:10-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7nvuW2[W:10-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7nvyW2[W:10-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7nvzW1[W:10-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7nw0W2[W:10-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e6plnB1[B:7-82] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription factor E ; X-RAY DIFFRACTION 2.6Å

e7egcU2[U:11-100,U:175-203] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7enaEA1[EA:11-100,EA:175-203] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7encEA2[EA:11-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e7ml0W2[W:4-99,W:170-194] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIE subunit alpha ; ELECTRON MICROSCOPY

e7ml1W1[W:4-99,W:170-194] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIE subunit alpha ; ELECTRON MICROSCOPY

e7ml2W1[W:4-99,W:170-194] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIE subunit alpha ; ELECTRON MICROSCOPY

e7ml4W1[W:4-99,W:170-194] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Transcription initiation factor IIE subunit alpha ; ELECTRON MICROSCOPY

e8gxqEA1[EA:10-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e8gxsEA2[EA:10-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e8bvwW2[W:10-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; ELECTRON MICROSCOPY

e8byqW2[W:10-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

General transcription factor IIE subunit 1 ; 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.

T: DNA-binding domain of intron-encoded endonucleases

lacks the N-terminal helix, circularly permuted wing

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

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