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/p.gif)
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![](/ecod/img/m.gif)
Representatives:
e1twfA4[A:2-336]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT ; ligands: ZN ; X-RAY DIFFRACTION 2.3Å
e6m6bD3[D:3-165,D:449-622] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6m6cD5[D:3-165,D:449-622] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6vjsD4[D:8-333] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: QZY,ZN ; X-RAY DIFFRACTION 4.0Å
e6vjsI7[I:8-333] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; X-RAY DIFFRACTION 4.0Å
e6ztjCD9[CD:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: PHE,ZN ; ELECTRON MICROSCOPY
e6ztlCD6[CD:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: PHE,ZN ; ELECTRON MICROSCOPY
e6ztmCD2[CD:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: PHE,ZN ; ELECTRON MICROSCOPY
e6ztnCD9[CD:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: PHE,ZN ; ELECTRON MICROSCOPY
e6ztoCD8[CD:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: PHE,ZN ; ELECTRON MICROSCOPY
e6ztpCD6[CD:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: PHE,ZN ; ELECTRON MICROSCOPY
e6zu1CD9[CD:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: PHE,ZN ; ELECTRON MICROSCOPY
e7adbY2[Y:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6z9pY4[Y:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: DG,ZN ; ELECTRON MICROSCOPY
e6z9qY3[Y:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6z9rY9[Y:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: DG,ZN ; ELECTRON MICROSCOPY
e6z9sY1[Y:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6z9tY5[Y:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: DA,DT,ZN ; ELECTRON MICROSCOPY
e7c17D7[D:17-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6ldiD2[D:17-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7b0yA1[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e6wmpD6[D:12-331] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6wmrD6[D:12-331] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6wmtD3[D:12-331] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7aocA8[A:1-142,A:173-258,A:321-471] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit rpa1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7aodA7[A:1-142,A:173-258,A:321-471] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit rpa1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7aodM3[M:1-142,M:173-258,M:321-471] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit rpa1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7aoeA7[A:1-142,A:173-258,A:321-471] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit rpa1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7adcY7[Y:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7addY5[Y:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7adeY9[Y:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7d7cD4[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7d7dD2[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6wmuD2[D:3-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6x26J3[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6x2fJ4[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6x2nJ7[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6x43J8[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6x4wJ4[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6x4yJ9[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6x50J6[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6xasJ1[J:10-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6xavJ5[J:1-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7lbmA1[A:10-157,A:183-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e6xl9D3[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6xh7D6[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7edxo8[o:11-155,o:181-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7eg7o7[o:11-155,o:181-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7eg8o7[o:11-155,o:181-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7eg9o1[o:11-155,o:181-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7egao1[o:11-155,o:181-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7egbo5[o:11-155,o:181-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nvrA4[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7nvsA4[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nvtA1[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nvuA4[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nvyA2[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nvzA4[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nw0A3[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e6xh8D4[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6xl5D8[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6xljD9[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: 1N7,ZN ; ELECTRON MICROSCOPY
e6xllD4[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6xlmD9[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6xlnD9[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e6xreA5[A:19-155,A:181-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e6cceD1[D:3-55,D:86-147,D:230-408] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: EDO,GLU ; X-RAY DIFFRACTION 3.05Å
e6ccvD3[D:4-147,D:230-408] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: EDO,GLU,SO4,ZN ; X-RAY DIFFRACTION 3.05Å
e6eydD4[D:4-147,D:230-408] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7kedA6[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; X-RAY DIFFRACTION 3.550Å
e7o4iA7[A:2-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7egco3[o:11-155,o:181-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nkyA6[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7keeA5[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; X-RAY DIFFRACTION 3.410Å
e7kefA8[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; X-RAY DIFFRACTION 3.890Å
e7o4jA6[A:2-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7o72A9[A:2-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7o73A9[A:2-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7o75A6[A:2-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7okxA1[A:10-156,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7nkxA1[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ok0A1[A:1-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit A' ; ligands: ZN ; ELECTRON MICROSCOPY
e6gmhA1[A:11-152,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e6rqlA1[A:3-127,A:182-270,A:309-467] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA190 ; ELECTRON MICROSCOPY
e7okyA1[A:10-156,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7ol0A1[A:10-156,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7oq4A1[A:1-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit A' ; ligands: ZN ; ELECTRON MICROSCOPY
e7oqyA1[A:2-309] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit A' ; ligands: ZN ; ELECTRON MICROSCOPY
e7pksA1[A:11-154,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7rimA4[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; X-RAY DIFFRACTION 2.9Å
e7oobA2[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7dy6D2[D:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7befD2[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ELECTRON MICROSCOPY
e7l7bD3[D:3-322] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: FI8,ZN ; ELECTRON MICROSCOPY
e7ml0A6[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7mlbD8[D:3-165,D:449-609] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; X-RAY DIFFRACTION 3.60Å
e7ml1A2[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7ml2A7[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7ml4A3[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7ripA9[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; X-RAY DIFFRACTION 3.270Å
e7riqA4[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; X-RAY DIFFRACTION 2.960Å
e7riwA3[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; X-RAY DIFFRACTION 3.17Å
e7rixA4[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; X-RAY DIFFRACTION 3.3Å
e7riyA2[A:3-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; X-RAY DIFFRACTION 3.630Å
e7oo3A7[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7oopA4[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7opcA9[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7opdA3[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7m8eD5[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7mkdJ7[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: 1N7,ZN ; ELECTRON MICROSCOPY
e7mkeJ3[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: 1N7,ZN ; ELECTRON MICROSCOPY
e7mkiJ7[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: 1N7,ZN ; ELECTRON MICROSCOPY
e7mkjJ2[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: 1N7,ZN ; ELECTRON MICROSCOPY
e7begD7[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ELECTRON MICROSCOPY
e7eh0D10[D:3-165,D:449-609] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; X-RAY DIFFRACTION 2.800Å
e7eh1D5[D:3-165,D:449-609] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; X-RAY DIFFRACTION 2.898Å
e7eh2D12[D:3-165,D:449-609] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; X-RAY DIFFRACTION 3.340Å
e7eh2N12[N:3-165,N:449-609] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; X-RAY DIFFRACTION 3.340Å
e7meia3[a:2-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7py3D9[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7meiA6[A:2-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7mk9A8[A:2-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7mkaa9[a:2-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7py0D4[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7py1D6[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7py5D2[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7py6D6[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7py7D4[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7py8D6[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7pyjD4[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7pykD9[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7q0jD2[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7q0kD1[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7vwyD3[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7vwzD8[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8e3fB8[B:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8e5kB8[B:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8e5oB3[B:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8e6xB4[B:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8e6zB3[B:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7xueJ6[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7xugJ7[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7xuiJ1[J:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7mliD1[D:3-165,D:449-609] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; X-RAY DIFFRACTION 3.6Å
e7mljD1[D:3-165,D:449-609] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; X-RAY DIFFRACTION 3.75Å
e7z1lA3[A:1-358] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7z1mA3[A:1-358] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7z1nA7[A:1-358] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7z1oA9[A:1-358] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7xn7A1[A:2-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7xseA7[A:2-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7xsxA5[A:2-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7xszA9[A:2-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7xtdA3[A:2-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7n4eD5[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7rdqD1[D:3-165,D:449-610] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7ubmD1[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7xt7A6[A:2-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7xtiA6[A:2-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7ubnD9[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7ui9A1[A:1-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ELECTRON MICROSCOPY
e7uifA8[A:1-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ELECTRON MICROSCOPY
e7uioAA5[AA:1-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ELECTRON MICROSCOPY
e7uioBA4[BA:1-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ELECTRON MICROSCOPY
e7zs9A9[A:2-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7zsaA6[A:2-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7zsbA6[A:2-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB1 ; ligands: ZN ; ELECTRON MICROSCOPY
e7zwdA4[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7zx7A7[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7zx8A8[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e7yp9D3[D:17-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7ye1D4[D:17-335] Image Pymol Jmol Links: PDB, SCOP, CATH
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7ye2D6[D:17-335] Image Pymol Jmol Links: PDB, SCOP, CATH
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8abyD7[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8abzD5[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8ac0D6[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8ac1D3[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8ac2D7[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8acpD4[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8ad1D2[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8eg7J4[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8eg8J4[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8egbJ9[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8eh8J6[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8eh9J3[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8ehaJ7[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8ehfJ3[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8ehiJ9[J:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7qv9D5[D:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ELECTRON MICROSCOPY
e7qwpD2[D:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ELECTRON MICROSCOPY
e7qxiD2[D:2-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ELECTRON MICROSCOPY
e7w5wD3[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e7w5xD6[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ELECTRON MICROSCOPY
e7w5yD6[D:15-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ELECTRON MICROSCOPY
e7ypbD8[D:16-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8h0vA1[A:2-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e8h0wA1[A:2-337] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e8igrJ1[J:16-333] Image Pymol Jmol Links: PDB, SCOP, CATH
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8igsJ4[J:16-333] Image Pymol Jmol Links: PDB, SCOP, CATH
DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; ELECTRON MICROSCOPY
e8bvwA4[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
e8byqA7[A:11-155,A:182-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit ; ligands: ZN ; ELECTRON MICROSCOPY
Previous Nexte2a69D1[D:2-165,D:449-610]
nonrep
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Pymol
Jmol Links:
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CATH, PubMed,
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DNA-DIRECTED RNA POLYMERASE BETA' CHAIN ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.5Å
e2o5iD1[D:2-165,D:449-622]
nonrep
Image
Pymol
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CATH, PubMed,
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DNA-DIRECTED RNA POLYMERASE BETA' CHAIN ; ligands: ZN ; X-RAY DIFFRACTION 2.5Å
e3dxjN10[N:2-165,N:449-609]
nonrep
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Pymol
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BACTRIAL RNA POLYMERASE BETA-PRIME SUBUNIT ; ligands: ZN ; X-RAY DIFFRACTION 3.0Å
e4c3hA1[A:1-463]
nonrep
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DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA190 ; ligands: ZN ; X-RAY DIFFRACTION 3.27Å
e4bxxA1[A:2-336]
nonrep
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DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 ; ligands: ZN ; X-RAY DIFFRACTION 3.28Å
e2pmzA1[A:4-306]
nonrep
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DNA-directed RNA polymerase subunit A ; ligands: ZN ; X-RAY DIFFRACTION 3.400Å
e4ljzD1[D:8-333]
nonrep
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DNA-directed RNA polymerase subunit beta' ; ligands: ZN ; X-RAY DIFFRACTION 3.5871Å
e3wodD5[D:2-165,D:448-621]
nonrep
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DNA-directed RNA polymerase subunit beta' ; X-RAY DIFFRACTION 3.6Å
e1l9uD1[D:3-157,D:453-616]
nonrep
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Pymol
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RNA POLYMERASE, BETA-PRIME SUBUNIT ; ligands: ZN ; X-RAY DIFFRACTION 4Å
e4jk2D1[D:8-333]
nonrep
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ESCHERICHIA COLI RNA POLYMERASE BETA' SUBUNIT ; ligands: ZN ; X-RAY DIFFRACTION 4.2Å
![](/ecod/img/p.gif)
Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
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