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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: RPB6/omega subunit-like
H: RPB6/omega subunit-like
T: RPB6
F: RNA_pol_Rpb6

PF01192

Representatives:

e1twfF1[F:72-155] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASES I, II, AND III 23 KDA POLYPEPTIDE ; X-RAY DIFFRACTION 2.3Å

e5fywF1[F:72-154] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 2 ; ELECTRON MICROSCOPY

e5fz5F1[F:72-154] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 2 ; ELECTRON MICROSCOPY

e5m3fF1[F:55-154] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerases I, II, and III subunit RPABC2 ; ELECTRON MICROSCOPY

e5m3mF1[F:57-154] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerases I, II, and III subunit RPABC2 ; ELECTRON MICROSCOPY

e7okxF1[F:50-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7nkxF1[F:69-155] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerases I, II, and III subunit RPABC2 ; ELECTRON MICROSCOPY

e7ok0K1[K:1-86] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit K ; ELECTRON MICROSCOPY

e7okyF1[F:50-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7ol0F1[F:50-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7oq4K1[K:2-86] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit K ; ELECTRON MICROSCOPY

e7oqyK1[K:1-86] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit K ; ELECTRON MICROSCOPY

e7eu0F1[F:59-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerases II, IV and V subunit 6A ; ELECTRON MICROSCOPY

e7eu1F1[F:58-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerases II, IV and V subunit 6A ; ELECTRON MICROSCOPY

e7fjiF1[F:51-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerases I, II, and III subunit RPABC2 ; ELECTRON MICROSCOPY

e7fjjF1[F:51-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerases I, II, and III subunit RPABC2 ; ELECTRON MICROSCOPY

e7ob9F1[F:49-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerases I, II, and III subunit RPABC2 ; ELECTRON MICROSCOPY

e7obaF1[F:50-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerases I, II, and III subunit RPABC2 ; ELECTRON MICROSCOPY

e7obbF1[F:50-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerases I, II, and III subunit RPABC2 ; ELECTRON MICROSCOPY

e7oo3F1[F:46-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7oobF1[F:46-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7oopF1[F:46-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7opcF1[F:46-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7opdF1[F:46-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7oznF1[F:49-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7oznR1[R:49-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7ozoF1[F:49-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7ozoR1[R:49-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7ozpF1[F:49-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7ozpR1[R:49-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e7pksF1[F:50-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase II subunit F ; ELECTRON MICROSCOPY

e4qiwK1[K:2-57] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit K ; X-RAY DIFFRACTION 3.5Å

e1qklA1[A:801-927] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE II 14.4 KD POLYPEPTIDE ; SOLUTION NMR

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.

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