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
![](/ecod/img/m.gif)
![](/ecod/img/m.gif)
![](/ecod/img/p.gif)
![](/ecod/img/m.gif)
Representatives:
e1twfC1[C:3-41,C:173-268]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
DNA-DIRECTED RNA POLYMERASE II 45 KDA POLYPEPTIDE ; X-RAY DIFFRACTION 2.3Å
e6a5rC2[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e6a5tC1[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e6a5uC1[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e6a5vC2[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH
e6gykC2[C:4-41,C:173-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e6gylC2[C:4-41,C:173-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e6gymC1[C:4-41,C:173-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e6i84C1[C:3-37,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e6ir9C2[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e6j4wC1[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e6j4xC1[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e6j4yC1[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e6j4zC2[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e6j50C2[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e6j51C2[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e6inqC2[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e6o9lC2[C:1-42,C:179-275] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e6drdC1[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e6o6cC1[C:1-41,C:173-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e6upxC1[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.300Å
e6upyC2[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.290Å
e6upzC2[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.020Å
e6uq0C2[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.560Å
e6uq1C1[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.540Å
e6uq2C2[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.090Å
e6uq3C2[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.470Å
e6tedC1[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II subunit C ; ELECTRON MICROSCOPY
e7b0yC1[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e6xreC2[C:1-42,C:179-275] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ligands: ZN ; ELECTRON MICROSCOPY
e7lbmC1[C:1-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7edxq1[q:2-42,q:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7eg7q1[q:2-42,q:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7eg8q1[q:2-42,q:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7eg9q1[q:2-42,q:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7egaq1[q:2-42,q:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7egbq1[q:2-42,q:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7nvrC1[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7nvsC1[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7nvtC2[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7nvuC1[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7nvyC2[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7nvzC1[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7nw0C2[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7o4iC1[C:3-37,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7kedC2[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.550Å
e7egcq2[q:2-42,q:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7b7uC1[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7enaPC1[PC:2-42,PC:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7keeC2[C:3-37,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.410Å
e7kefC2[C:3-37,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.890Å
e7o4jC2[C:3-37,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7o72C1[C:3-37,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7o73C2[C:3-37,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7o75C2[C:3-37,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7nkyC2[C:4-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7encPC2[PC:2-42,PC:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7f4gC2[C:2-42,C:179-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7nkxC2[C:4-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7eu0C2[C:5-45,C:183-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases II, IV and V subunit 3 ; ELECTRON MICROSCOPY
e7eu1C2[C:5-45,C:183-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases II, IV and V subunit 3 ; ELECTRON MICROSCOPY
e7ml4C2[C:3-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7rimC2[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 2.9Å
e7oobC1[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7pksC2[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7ml0C2[C:4-41,C:173-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7ml1C2[C:4-41,C:173-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7ml2C2[C:4-41,C:173-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7ripC1[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.270Å
e7riqC1[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 2.960Å
e7riwC2[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.17Å
e7rixC2[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.3Å
e7riyC1[C:2-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; X-RAY DIFFRACTION 3.630Å
e7okxC2[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7okyC1[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7ol0C1[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7oo3C2[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7oopC2[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7opcC1[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7opdC1[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7oznC2[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7oznO1[O:2-42,O:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7ozoC1[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7ozoO1[O:2-42,O:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7ozpC2[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7ozpO1[O:2-42,O:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7meic1[c:4-41,c:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7xn7C1[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e7xseC2[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e7xsxC1[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e7xszC2[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e7xtdC1[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e7meiC2[C:4-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7mk9C2[C:4-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7mkac1[c:4-41,c:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7xt7C2[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e7xtiC2[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e8ceoC2[C:3-37,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7zs9C1[C:3-37,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7zsaC2[C:3-37,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7zsbC1[C:3-37,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e8h0vC2[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e8h0wC1[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II third largest subunit B44, part of central core ; ELECTRON MICROSCOPY
e7ui9C2[C:1-41,C:173-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7uifC2[C:1-41,C:173-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7uioAC2[AC:1-41,AC:173-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7uioBC2[BC:1-41,BC:173-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e8gxqPC2[PC:2-42,PC:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e8gxsPC1[PC:2-42,PC:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7uncC2[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7undC1[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7zwdC1[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7zx7C1[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7zx8C2[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e8cenC1[C:3-41,C:173-268] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e8bvwC2[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e8byqC2[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e8bz1C2[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7ycx31[3:2-42,3:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB3 ; ELECTRON MICROSCOPY
e7wbvC1[C:4-40,C:173-266] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8p4eC2[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8p4aC1[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8a40C2[C:2-42,C:179-271] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8b3dC1[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e8oeuC2[C:2-42,C:179-270] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e4qiwD2[D:1-37,D:149-188,D:208-258] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit D ; X-RAY DIFFRACTION 3.5Å
e4qiwO1[O:1-37,O:149-188,O:208-258] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit D ; X-RAY DIFFRACTION 3.5Å
e4qjvA1[A:1-37,A:149-188,A:208-259] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit D ; X-RAY DIFFRACTION 1.6Å
e4qjvC1[C:1-37,C:149-188,C:208-258] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit D ; X-RAY DIFFRACTION 1.6Å
e6kf3D2[D:2-37,D:149-188,D:208-258] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit D ; ELECTRON MICROSCOPY
e6kf4D2[D:2-37,D:149-188,D:208-258] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit D ; ELECTRON MICROSCOPY
e6kf9D1[D:2-37,D:149-188,D:208-258] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit D ; ELECTRON MICROSCOPY
Previousa+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