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/m.gif)
![](/ecod/img/m.gif)
Representatives:
e1twfB3[B:851-974]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
DNA-DIRECTED RNA POLYMERASE II 140 KDA POLYPEPTIDE ; X-RAY DIFFRACTION 2.3Å
e2e2jB3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II 140 kDa polypeptide ; X-RAY DIFFRACTION 3.5Å
e3fkiB7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB2 ; X-RAY DIFFRACTION 3.88Å
e3gtgB7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.78Å
e3gtjB8[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.40Å
e3gtkB3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.80Å
e3hozB3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB2 ; X-RAY DIFFRACTION 3.65Å
e1i3qB8[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II 140KD POLYPEPTIDE ; X-RAY DIFFRACTION 3.1Å
e3i4mB3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB2 ; X-RAY DIFFRACTION 3.7Å
e3i4nB7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB2 ; X-RAY DIFFRACTION 3.9Å
e1i50B3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II 140KD POLYPEPTIDE ; X-RAY DIFFRACTION 2.8Å
e1k83B7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II 140KD POLYPEPTIDE ; X-RAY DIFFRACTION 2.8Å
e2nvyB7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II 140 KDA POLYPEPTIDE ; X-RAY DIFFRACTION 3.4Å
e1twaB8[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II 140 KDA POLYPEPTIDE ; X-RAY DIFFRACTION 3.2Å
e1twcB3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II 140 KDA POLYPEPTIDE ; X-RAY DIFFRACTION 3.0Å
e1twgB8[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II 140 KDA POLYPEPTIDE ; X-RAY DIFFRACTION 3.3Å
e1twhB7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II 140 KDA POLYPEPTIDE ; X-RAY DIFFRACTION 3.4Å
e4y52B6[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.500Å
e4y7nB2[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2,DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.300Å
e5c3eB4[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.400Å
e5c44B5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.852Å
e5c4aB2[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 4.2Å
e5c4jB7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 4.0Å
e5c4xB5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 4.0Å
e4ym7AB6[AB:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; X-RAY DIFFRACTION 5.5Å
e4ym7BB7[BB:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; X-RAY DIFFRACTION 5.5Å
e4ym7CB5[CB:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; X-RAY DIFFRACTION 5.5Å
e4ym7DB2[DB:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; X-RAY DIFFRACTION 5.5Å
e4ym7EB3[EB:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; X-RAY DIFFRACTION 5.5Å
e4ym7FB4[FB:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; X-RAY DIFFRACTION 5.5Å
e5fmfB6[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB2 ; ELECTRON MICROSCOPY
e5fj8B3[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC2 ; ELECTRON MICROSCOPY
e5fj9B2[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC2 ; ELECTRON MICROSCOPY
e5fjaB6[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC2 ; ELECTRON MICROSCOPY
e5flmB3[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB2 ; ELECTRON MICROSCOPY
e5fywB4[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB2 ; ELECTRON MICROSCOPY
e5fz5B4[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB2 ; ELECTRON MICROSCOPY
e5iy6B6[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e5iy7B3[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e5iy8B1[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e5iy9B7[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e5iyaB5[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e5iybB1[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e5iycB6[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e5iydB7[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e5g5lB7[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA135 ; ELECTRON MICROSCOPY
e5svaB1[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e5m5wB2[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5m5xB6[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5m5yB3[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5m64B4[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5u0sb1[b:840-963] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RNA polymerase II subunit Rpb2 ; ELECTRON MICROSCOPY
e5lmxB3[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5u5qB5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.80Å
e5n5yB6[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5n5zB7[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5n60B1[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5n61B6[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5x4zB1[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 7.800Å
e5x4zN4[N:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 7.800Å
e5x50B5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.290Å
e5x51B2[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 7.000Å
e5x51N4[N:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 7.000Å
e5oa1B5[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5w5yB4[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5w64B3[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5w66B1[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5w65B1[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e5xogB2[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.000Å
e5xonB1[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e5oikB4[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e5oqjB2[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e5oqmB1[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e5ot2B6[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.2Å
e5vvrB5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e5vvsB5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e6eu1B1[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6eu0B7[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6eu2B3[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6eu3B2[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6f40B6[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6f41B7[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6f42B6[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6f44B3[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6bloB2[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.4Å
e6blpB4[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.2Å
e6bm2B4[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.4Å
e6bm4B7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 2.95Å
e6bqfB3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.35Å
e6exvB4[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB2 ; ELECTRON MICROSCOPY
e5w4uB7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.6Å
e6h67B3[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6a5lB5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6gmhB2[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6gmlB1[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6cnbB6[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e5w51B2[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.4Å
e6h68B5[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6cncB6[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6cndB7[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6cnfB6[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6a5oB4[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6a5pB5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6a5rB4[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6a5tB1[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6a5uB7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6a5vB7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH
e6gykB2[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e6gylB4[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e6gymB6[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e6i84B3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e6ir9B2[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6j4wB7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6j4xB1[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6j4yB7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6j4zB7[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6j50B2[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6j51B5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6hlqB6[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6hlrB7[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6hlsB5[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6inqB1[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6hkoB1[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6o9lB2[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e6drdB4[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e6o6cB3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e6rqhB5[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6rqlB3[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6rqtB5[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6rrdB2[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6ruiB6[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6ruoB2[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6rweB2[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6tutB6[B:783-906] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6tpsB3[B:799-911] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase I subunit RPA135 ; ELECTRON MICROSCOPY
e6upxB3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.300Å
e6upyB5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.290Å
e6upzB2[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.020Å
e6uq0B3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.560Å
e6uq1B4[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.540Å
e6uq2B4[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.090Å
e6uq3B5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.470Å
e6kf3B7[B:752-876] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6kf4B5[B:752-876] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6kf9B7[B:752-876] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6tedB3[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7aocB3[B:784-896] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Probable DNA-directed RNA polymerase I subunit RPA2 ; ELECTRON MICROSCOPY
e7aodB4[B:784-896] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Probable DNA-directed RNA polymerase I subunit RPA2 ; ELECTRON MICROSCOPY
e7aodN4[N:784-896] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Probable DNA-directed RNA polymerase I subunit RPA2 ; ELECTRON MICROSCOPY
e7aoeB4[B:784-896] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Probable DNA-directed RNA polymerase I subunit RPA2 ; ELECTRON MICROSCOPY
e7a6hB2[B:767-891] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e7ae1B5[B:767-891] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e7ae3B2[B:767-891] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e7aeaB7[B:767-891] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e7astM3[M:767-891] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e7d58B4[B:767-891] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e7d59B2[B:767-891] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e7b0yB7[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7lbmB4[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e7dn3B1[B:767-891] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e7du2B2[B:767-891] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase III subunit RPC2 ; ELECTRON MICROSCOPY
e6xreB7[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e7edxp7[p:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7eg7p4[p:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7eg8p4[p:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7eg9p5[p:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7egap7[p:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7egbp6[p:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7nvrB7[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7nvsB5[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7nvtB1[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7nvuB4[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7nvyB6[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7nvzB6[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7nw0B5[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7kedB6[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.550Å
e7egcp5[p:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7enaPB6[PB:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7o4iB6[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e7b7uB5[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7keeB1[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.410Å
e7kefB5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; X-RAY DIFFRACTION 3.890Å
e7nkyB4[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e7encPB6[PB:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e7o4jB3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e7o72B3[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e7o73B5[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e7o75B6[B:851-974] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase II subunit RPB2 ; ELECTRON MICROSCOPY
e7f4gB5[B:806-929] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY
e6rflB6[B:770-879] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-dependent RNA polymerase subunit rpo132 ; ELECTRON MICROSCOPY
e6ricB6[B:770-879] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-dependent RNA polymerase subunit rpo132 ; ELECTRON MICROSCOPY
e6ridB6[B:770-879] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-dependent RNA polymerase subunit rpo132 ; ELECTRON MICROSCOPY
e6rieB6[B:770-879] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-dependent RNA polymerase subunit rpo132 ; ELECTRON MICROSCOPY
e7amvB6[B:770-879] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase ; ELECTRON MICROSCOPY
e7aofB6[B:770-879] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase ; ELECTRON MICROSCOPY
e7aohB6[B:770-879] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase ; ELECTRON MICROSCOPY
e7aozB6[B:770-879] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase ; ELECTRON MICROSCOPY
e7ap8B6[B:770-879] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase ; ELECTRON MICROSCOPY
e7ap9B6[B:770-879] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerase ; ELECTRON MICROSCOPY
e7eu0B7[B:800-910] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases IV and V subunit 2 ; ELECTRON MICROSCOPY
e7eu1B7[B:800-910] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DNA-directed RNA polymerases IV and V subunit 2 ; ELECTRON MICROSCOPY
Nexte1smyC9[C:701-833]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; ligands: MG ; X-RAY DIFFRACTION 2.7Å
e4c2mB6[B:799-911]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA135 ; X-RAY DIFFRACTION 2.80Å
e4by7B6[B:851-974]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB2 ; X-RAY DIFFRACTION 3.15Å
e2e2iB9[B:851-974]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
DNA-DIRECTED RNA POLYMERASE II 140 KDA POLYPEPTIDE ; X-RAY DIFFRACTION 3.41Å
e4kmuC5[C:713-790]
nonrep
Image
Pymol
Jmol Links:
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DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 3.85Å
e4kmuC6[C:828-938,C:1045-1062]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 3.85Å
![](/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