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X - Possible homology level

H - Homology level

T - Topology level

F - Family level

* - Provisional representative

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Evolutionary classification of protein domain structures

alpha arraysalpha-helix arrays with mainly perpendicular helices

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

X: cradle loop barrel

Refs: Structure 14, 1489-1498; Current opinion in structural biology 18, 358-365

H: RIFT-related
T: acid protease

126354, 3-crossover-4

T: double psi

152436, 2-crossover-3, 5-crossover-6

F: RNA_pol_Rpb2_6

PF00562 CL0410

Representatives:

e1twfB1[B:814-850,B:975-1097] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE II 140 KDA POLYPEPTIDE ; ligands: MN,UTP ; X-RAY DIFFRACTION 2.3Å

e1smyC8[C:663-700,C:834-999] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; ligands: G4P,MG ; X-RAY DIFFRACTION 2.7Å

e4wqsC3[C:662-698,C:833-998] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.300Å

e3aoiC7[C:664-698,C:836-1001] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 4.3Å

e3aoiH7[H:664-698,H:836-1001] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 4.3Å

e4wqtC7[C:664-698,C:836-1001] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.400Å

e4wqtM7[M:664-698,M:836-1001] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.400Å

e1hqmC4[C:663-700,C:834-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.2Å

e1l9uC3[C:663-700,C:834-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA POLYMERASE, BETA SUBUNIT ; X-RAY DIFFRACTION 4Å

e1l9uL3[L:663-700,L:834-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA POLYMERASE, BETA SUBUNIT ; X-RAY DIFFRACTION 4Å

e1l9zC3[C:663-700,C:834-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA POLYMERASE, BETA SUBUNIT ; X-RAY DIFFRACTION 6.5Å

e2a69C9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; ligands: MG ; X-RAY DIFFRACTION 2.5Å

e2a69M9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; ligands: MG ; X-RAY DIFFRACTION 2.5Å

e2a6eC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; X-RAY DIFFRACTION 2.8Å

e2a6eM9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; X-RAY DIFFRACTION 2.8Å

e2a6hC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; X-RAY DIFFRACTION 2.4Å

e2a6hM9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; X-RAY DIFFRACTION 2.4Å

e3aohC10[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 4.1Å

e3aohH7[H:664-700,H:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 4.1Å

e3aohM7[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 4.1Å

e3aoiM7[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 4.3Å

e2be5C9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; ligands: MG,TGT ; X-RAY DIFFRACTION 2.4Å

e2be5M9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; ligands: MG,TGT ; X-RAY DIFFRACTION 2.4Å

e2cw0C9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase beta chain ; X-RAY DIFFRACTION 3.3Å

e2cw0M9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase beta chain ; X-RAY DIFFRACTION 3.3Å

e3dxjC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BACTRIAL RNA POLYMERASE BETA SUBUNIT; CHAIN C, M ; ligands: MPD ; X-RAY DIFFRACTION 3.0Å

e3dxjM9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BACTRIAL RNA POLYMERASE BETA SUBUNIT; CHAIN C, M ; ligands: MPD ; X-RAY DIFFRACTION 3.0Å

e3eqlC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 2.7Å

e3eqlM9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 2.7Å

e4g7hC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 2.9Å

e4g7hM9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 2.9Å

e4g7oC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 2.99Å

e4g7oM9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 2.99Å

e4g7zC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 3.81Å

e4g7zM9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 3.81Å

e4gzyC7[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.500Å

e4gzzC7[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.000Å

e1iw7C9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA POLYMERASE BETA SUBUNIT ; ligands: MG ; X-RAY DIFFRACTION 2.6Å

e1iw7M9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RNA POLYMERASE BETA SUBUNIT ; ligands: MG ; X-RAY DIFFRACTION 2.6Å

e2o5iC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; X-RAY DIFFRACTION 2.5Å

e2o5iM9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; X-RAY DIFFRACTION 2.5Å

e2o5jC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; ligands: APC ; X-RAY DIFFRACTION 3.0Å

e2o5jM9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; ligands: APC,MG ; X-RAY DIFFRACTION 3.0Å

e2ppbC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; ligands: APC ; X-RAY DIFFRACTION 3.0Å

e2ppbM9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; ligands: APC ; X-RAY DIFFRACTION 3.0Å

e1smyM9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; ligands: G4P,MG ; X-RAY DIFFRACTION 2.7Å

e1zyrC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; X-RAY DIFFRACTION 3.0Å

e1zyrM9[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; X-RAY DIFFRACTION 3.0Å

e3wodC7[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.6Å

e4mq9C9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 3.35Å

e4oinC8[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 2.8Å

e4oioC8[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; ligands: 2TM,ATP,MG ; X-RAY DIFFRACTION 3.1Å

e4oipC8[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; ligands: ATP ; X-RAY DIFFRACTION 3.4Å

e4oiqC8[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 3.62Å

e4oirC8[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 3.1Å

e4q5sC8[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.0Å

e4q4zC8[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: 2TM,ATP ; X-RAY DIFFRACTION 2.85Å

e4wqsM7[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.300Å

e4wqtH7[H:664-700,H:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.400Å

e2a68C1[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE BETA CHAIN ; ligands: MG ; X-RAY DIFFRACTION 2.5Å

e5e17C5[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.2Å

e5e18C3[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.300Å

e5i2dC1[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.40Å

e5i2dN2[N:663-700,N:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.40Å

e5d4cC6[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: ATP,C,CTP,MG ; X-RAY DIFFRACTION 3.300Å

e5d4cM7[M:663-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: ATP,C,CTP,MG ; X-RAY DIFFRACTION 3.300Å

e5d4dC1[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: C,CTP,MG,NAD ; X-RAY DIFFRACTION 3.000Å

e5d4dM6[M:663-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: A,C,CTP ; X-RAY DIFFRACTION 3.000Å

e5d4eC7[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: C,COD,DPO,MG ; X-RAY DIFFRACTION 3.100Å

e5d4eM2[M:663-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: C,COD,DPO,MG ; X-RAY DIFFRACTION 3.100Å

e5tmcC2[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: G4P,MG ; X-RAY DIFFRACTION

e5tmfC2[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION

e5vo8C3[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: POP ; X-RAY DIFFRACTION 3.3Å

e5voiC3[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 2.8Å

e5x21C2[C:660-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: PUM ; X-RAY DIFFRACTION 3.300Å

e5x22C1[C:660-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: 2TM,MG ; X-RAY DIFFRACTION 3.3330Å

e5x22M1[M:660-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: 2TM,MG ; X-RAY DIFFRACTION 3.3330Å

e1i6vC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE ; X-RAY DIFFRACTION 3.3Å

e1ynjC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase beta chain ; X-RAY DIFFRACTION 3.2Å

e1ynnC9[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase beta chain ; X-RAY DIFFRACTION 3.3Å

e4xlnC4[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.000Å

e4xlnI2[I:663-700,I:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.000Å

e4xlpC5[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.000Å

e4xlpI5[I:664-700,I:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.000Å

e4xlqC7[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.500Å

e4xlqI7[I:664-700,I:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.500Å

e4xlrC5[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.150Å

e4xlrI1[I:663-700,I:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.150Å

e4xlsC3[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.01Å

e4xlsI6[I:664-700,I:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.01Å

e5tjgC2[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 2.6Å

e5xj0C4[C:660-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.000Å

e6asgC7[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.800Å

e6cuuC3[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 2.794Å

e6oy5C4[C:660-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: GTP,MG ; X-RAY DIFFRACTION 3Å

e6oy6C1[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: GTP,MG ; X-RAY DIFFRACTION 3.1Å

e6p70C5[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.05Å

e6ovrC4[C:660-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: POP ; X-RAY DIFFRACTION 2.83Å

e6ovyC1[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: POP ; X-RAY DIFFRACTION 3Å

e6ow3C1[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: POP ; X-RAY DIFFRACTION 2.77Å

e6oy7C2[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: POP ; X-RAY DIFFRACTION 3.04Å

e6p71C4[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: MG,UTP ; X-RAY DIFFRACTION 2.85Å

e6kqdC5[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.300Å

e6kqdM5[M:664-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.300Å

e6kqeC1[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.300Å

e6kqfC3[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 2.450Å

e6kqgC2[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 2.783Å

e6kqhC7[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.180Å

e6kqlC5[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 2.880Å

e6kqmC1[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.197Å

e6kqnC7[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.489Å

e6l74C7[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.100Å

e6ltsC7[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.45Å

e6woxC6[C:660-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: DCP,NA ; X-RAY DIFFRACTION 3.14Å

e6woyC3[C:660-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: CH1,MG ; X-RAY DIFFRACTION 3.00Å

e6m6aC4[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY

e6m6bC2[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY

e6m6cC7[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY

e7mlbC3[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.60Å

e7eh0C1[C:660-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: 2TM ; X-RAY DIFFRACTION 2.800Å

e7eh1C2[C:660-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ligands: 2TM ; X-RAY DIFFRACTION 2.898Å

e7eh2C1[C:660-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.340Å

e7eh2M4[M:660-700,M:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.340Å

e7rdqC6[C:660-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY

e7mliC2[C:663-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.6Å

e7mljC6[C:664-700,C:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 3.75Å

e8hsrI5[I:664-700,I:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY

e8hsgI6[I:664-700,I:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY

e8hshI2[I:664-700,I:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY

e8hslI1[I:664-700,I:827-999] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; ELECTRON MICROSCOPY

e4c2mB5[B:762-798,B:912-1040] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA135 ; X-RAY DIFFRACTION 2.80Å

e4by7B5[B:814-850,B:975-1097] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB2 ; X-RAY DIFFRACTION 3.15Å

e2e2iB8[B:814-850,B:975-1097] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE II 140 KDA POLYPEPTIDE ; ligands: DGT ; X-RAY DIFFRACTION 3.41Å

e4kmuC7[C:791-827,C:1063-1239] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE SUBUNIT BETA ; X-RAY DIFFRACTION 3.85Å

e4s20C1[C:791-828,C:1060-1237] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase subunit beta ; X-RAY DIFFRACTION 4.7Å

F: Unmapped domains

Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.

T: AbrB

122'1'344'3', 2-crossover-3, 2'-crossover-3'

T: Bacterial fluorinating enzyme-C

1265437, 2-crossover-3, 6-crossover-7

T: FMN-binding split barrel

123654, 3-crossover-4

T: Surface presentation of antigens (SPOA)

123654, 3-crossover-4, swapping

T: Alanine racemase-C

125436, 2-crossover-3, 5-crossover-6

T: Aminomethyltransferase beta-barrel domain

143256, 1-crossover-2, 4-crossover-5

T: PUA domain

12543, 2-crossover-3

beta meanderssingle beta-sheet with mainly meander topology

beta sandwichestwo beta-sheets stacked together to form a sandwich

beta duplicates or obligate multimersbeta duplicates or monomers associate together to form a compact domain

beta complex topologybeta domains with complex and unique topology that cannot be described as barrel or sandwich or meander

a+b two layersone alpha-helix layer and one beta-sheet layer

a+b three layersone mainly antiparallel beta-sheet layer sandwiched between two alpha-helix layers

a+b four layerstwo beta-sheet layers sandwiched between two alpha-helix layers

a+b complex topologyalpha and beta domain with complex and unique topology that cannot be described in layers

a+b duplicates or obligate multimersalpha and beta duplicates or monomers associated together to form a compact domain

a/b barrelsrepeating beta-alpha units form a barrel

a/b three-layered sandwichesrepeating beta-alpha units form a sandwich with a mainly parallel beta-sheet layer stacked between two alpha-helix layers

mixed a+b and a/balpha and beta domain consists of both a+b and a/b regions

few secondary structure elementsstabilized by cofactors or disulfides

extended segmentsextended, non-globular segments, frequently bind to other proteins to form complexes