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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

X: Long alpha-hairpin
H: RPC62 helical hairpin domain
T: RPC62 helical hairpin domain
F: RPC3_helical

PF20912

Representatives:

e2xv4S5[S:427-532] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC3 ; ligands: PO4 ; X-RAY DIFFRACTION 2.95Å

e2xubA8[A:427-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC3 ; X-RAY DIFFRACTION 2.8Å

e5afqA5[A:427-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC3 ; X-RAY DIFFRACTION 7.00Å

e5afqB5[B:427-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC3 ; X-RAY DIFFRACTION 7.00Å

e7astX4[X:427-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e7a6hO2[O:427-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e7ae1O2[O:427-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ligands: SF4 ; ELECTRON MICROSCOPY

e7ae3O2[O:427-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ligands: SF4 ; ELECTRON MICROSCOPY

e7aeaO2[O:427-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ligands: SF4 ; ELECTRON MICROSCOPY

e7d58O2[O:427-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ligands: SF4 ; ELECTRON MICROSCOPY

e7d59O2[O:427-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ligands: SF4 ; ELECTRON MICROSCOPY

e7dn3O3[O:427-465,O:491-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ligands: SF4 ; ELECTRON MICROSCOPY

e7du2O5[O:427-465,O:491-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ligands: SF4 ; ELECTRON MICROSCOPY

e7fjiO3[O:427-465,O:491-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ligands: SF4 ; ELECTRON MICROSCOPY

e7fjjO3[O:427-465,O:491-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ligands: SF4 ; ELECTRON MICROSCOPY

e8iueO2[O:427-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ligands: SF4 ; ELECTRON MICROSCOPY

e8iuhO2[O:427-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ligands: SF4 ; ELECTRON MICROSCOPY

e8ityO2[O:427-534] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: SF4 ; ELECTRON MICROSCOPY

e5fj8O2[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC3 ; ELECTRON MICROSCOPY

e5fjaO2[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC3 ; ELECTRON MICROSCOPY

e5fj9O2[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC3 ; ELECTRON MICROSCOPY

e6eu1O4[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e6eu2O2[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e6eu3O2[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e6f40O4[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e6f41O2[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e6f42O3[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e6f44O4[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e6eu0O4[O:568-653] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e6cnbO2[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e6cncO4[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e6cndO2[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e6cnfO5[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e6tutO4[O:568-653] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e7z1oO2[O:568-653] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e7z1lO3[O:568-653] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e7z1mO3[O:568-653] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e7z1nO4[O:568-653] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e8bwsO2[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e7z0hO3[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e7z2zO2[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e7z30O1[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

e7z31O2[O:568-654] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA-directed RNA polymerase III subunit RPC3 ; ELECTRON MICROSCOPY

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

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