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
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
![](/ecod/img/m.gif)
![](/ecod/img/m.gif)
![](/ecod/img/p.gif)
![](/ecod/img/p.gif)
Representatives:
e1twfC2[C:42-172]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
DNA-DIRECTED RNA POLYMERASE II 45 KDA POLYPEPTIDE ; ligands: ZN ; X-RAY DIFFRACTION 2.3Å
e5n61C2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e5x50C2[C:37-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; X-RAY DIFFRACTION 4.290Å
e5x4zC1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; X-RAY DIFFRACTION 7.800Å
e5x4zO2[O:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; X-RAY DIFFRACTION 7.800Å
e5x51C1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; X-RAY DIFFRACTION 7.000Å
e5x51O2[O:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; X-RAY DIFFRACTION 7.000Å
e5oa1C2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e5w5yC1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e5w64C2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e5w66C2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e5w65C2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e5xogC1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; X-RAY DIFFRACTION 3.000Å
e5xonC2[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e5oikC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e5oqjC2[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e5oqmC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e5ot2C1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.2Å
e5vvrC2[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e5vvsC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e6eu0C1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6eu1C2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6eu2C2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6eu3C1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6f40C1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6f41C1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6f42C2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6f44C2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6bloC1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.4Å
e6blpC1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.2Å
e6bm2C1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.4Å
e6bm4C2[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 2.95Å
e6bqfC1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.35Å
e6exvC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e5w4uC2[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.6Å
e6a5lC2[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6cnbC1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6h67C2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6gmhC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II subunit C ; ligands: ZN ; ELECTRON MICROSCOPY
e6gmlC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II subunit C ; ligands: ZN ; ELECTRON MICROSCOPY
e5w51C1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.4Å
e6a5oC1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6a5pC2[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6a5rC1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6a5tC2[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6a5uC2[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6a5vC1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH
; ligands: ZN
e6cncC2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6cndC1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6cnfC2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6h68C2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6gykC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e6gylC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e6gymC2[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e6i84C2[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e6ir9C1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6j4wC2[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6j4xC2[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6j4yC2[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6j4zC1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6j50C1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6j51C1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6inqC1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e6hkoC1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6hlqC2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6hlrC1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6hlsC2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6o9lC1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e6drdC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e6o6cC2[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e6rqhC2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6rqlC2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6rqtC2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6rrdC1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6ruiC1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6ruoC1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6rweC1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6tutC2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ligands: ZN ; ELECTRON MICROSCOPY
e6tpsC2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e6upxC2[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.300Å
e6upyC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.290Å
e6upzC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.020Å
e6uq0C1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.560Å
e6uq1C2[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.540Å
e6uq2C1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.090Å
e6uq3C1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.470Å
e6kf3D1[D:38-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit D ; ELECTRON MICROSCOPY
e6kf4D1[D:38-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit D ; ELECTRON MICROSCOPY
e6kf9D2[D:38-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit D ; ELECTRON MICROSCOPY
e6tedC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II subunit C ; ligands: ZN ; ELECTRON MICROSCOPY
e7a6hC1[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7ae1C2[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7ae3C2[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7aeaC1[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7aocC1[C:82-228] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7aodC1[C:82-228] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7aodO1[O:82-228] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7aoeC1[C:82-228] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7astH2[H:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7d58C1[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7d59C2[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7b0yC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e6xreC1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7dn3C1[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7lbmC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7du2C2[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7edxq2[q:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7eg7q2[q:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7eg8q2[q:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7eg9q2[q:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7egaq2[q:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7egbq2[q:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nvrC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nvsC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nvtC1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nvuC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nvyC1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nvzC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nw0C1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7o4iC2[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7kedC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.550Å
e7egcq1[q:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7b7uC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7enaPC2[PC:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7keeC1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.410Å
e7kefC1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.890Å
e7o4jC1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7o72C2[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7o73C1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7o75C1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nkyC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7encPC1[PC:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7f4gC1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7nkxC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7eu0C1[C:46-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases II, IV and V subunit 3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7eu1C1[C:46-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases II, IV and V subunit 3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ml4C1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7rimC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 2.9Å
e7oobC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7pksC1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7fjiC1[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7oq4D2[D:37-158] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit D ; ELECTRON MICROSCOPY
e7ml0C1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ml1C1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ml2C1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ripC2[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.270Å
e7riqC2[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 2.960Å
e7riwC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.17Å
e7rixC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.3Å
e7riyC2[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; X-RAY DIFFRACTION 3.630Å
e7okxC1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7okyC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ol0C2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7oo3C1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7oopC1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7opcC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7opdC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7oznC1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7oznO2[O:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ozoC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ozoO2[O:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ozpC1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ozpO2[O:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7fjjC2[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7meic2[c:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7vbaC2[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7vbbC1[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7xn7C2[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e7xseC1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e7xsxC2[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e7xszC1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e7xtdC2[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e7meiC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7mk9C1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7mkac2[c:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7vbcC1[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e8a43C2[C:85-227] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ELECTRON MICROSCOPY
e7z1lC1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ligands: 4QM ; ELECTRON MICROSCOPY
e7z1mC2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ligands: 4QM ; ELECTRON MICROSCOPY
e7z1nC1[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ligands: 1N7 ; ELECTRON MICROSCOPY
e7z1oC2[C:76-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases I and III subunit RPAC1 ; ligands: 1N7 ; ELECTRON MICROSCOPY
e7xt7C1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e7xtiC1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e8ceoC1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7zs9C2[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7zsaC1[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7zsbC2[C:38-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e8h0vC1[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e8h0wC2[C:41-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ligands: ZN ; ELECTRON MICROSCOPY
e7ui9C1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7uifC1[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7uioAC1[AC:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7uioBC1[BC:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e8gxqPC1[PC:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e8gxsPC2[PC:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7uncC1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7undC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7zwdC2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7zx7C2[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7zx8C1[C:43-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e8cenC2[C:42-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
Previous Nexta+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