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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

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

X: 26S proteasome regulatory subunits C-terminal helices
H: 26S proteasome regulatory subunit RPN5 C-terminal helix
T: 26S proteasome regulatory subunit RPN5 C-terminal helix
F: RPN5_C

PF18098

Representatives:

e3j47P1[P:409-442] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e5gjqP2[P:421-454] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e4cr2P1[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S PROTEASOME REGULATORY SUBUNIT RPN5 ; ELECTRON MICROSCOPY

e4cr3P2[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S PROTEASOME REGULATORY SUBUNIT RPN5 ; ELECTRON MICROSCOPY

e4cr4P2[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S PROTEASOME REGULATORY SUBUNIT RPN5 ; ELECTRON MICROSCOPY

e5a5bP2[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S PROTEASOME REGULATORY SUBUNIT RPN5 ; ELECTRON MICROSCOPY

e3jckB2[B:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e3jcoP1[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e3jcpP3[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e5l4kP1[P:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5gjrP3[P:421-454] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5gjr31[3:421-454] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5t0gW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5t0iW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5t0jW1[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5t0cAW3[AW:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5t0cBW2[BW:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5t0hW2[W:420-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5mpdP1[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e5mpeP1[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e5mpbP3[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e5mpcP3[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e5wviP3[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e5wvkP1[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e5ln3P3[P:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5vgzW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5vhfW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5vhhW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5vhiW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5vhsW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e6epcP1[P:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Proteasome (Prosome, macropain) 26S subunit, non-ATPase, 12 ; ELECTRON MICROSCOPY

e6epdP1[P:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Proteasome (Prosome, macropain) 26S subunit, non-ATPase, 12 ; ELECTRON MICROSCOPY

e6epeP1[P:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Proteasome (Prosome, macropain) 26S subunit, non-ATPase, 12 ; ELECTRON MICROSCOPY

e6epfP2[P:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Proteasome (Prosome, macropain) 26S subunit, non-ATPase, 12 ; ELECTRON MICROSCOPY

e6fvtP3[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e6fvwP3[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e5vfpW3[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5vfqW1[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5vfrW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5vfsW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5vfuW3[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e5vftW3[W:420-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e6fvuP2[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e6fvvP2[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e6fvxP3[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e6fvyP3[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e6mseW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e6msgW3[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e6mshW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e6msjW3[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e6mskW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e6msbW3[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e6msdW1[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e6j2cP3[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e6j2qP3[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e6j2xP2[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S PROTEASOME REGULATORY SUBUNIT RPN5 ; ELECTRON MICROSCOPY

e6j2nP3[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e6j30P2[P:408-442] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e6wjdW1[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e6wjnW1[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7qo5P3[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e7w37W2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7w38W2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7w39W1[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7w3aW3[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7w3bW3[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7w3cW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7w3fW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7w3gW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7w3hW3[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7w3iW1[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7w3jW3[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7w3kW1[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7w3mW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7qo3P2[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e7qo6P1[P:408-440] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN5 ; ELECTRON MICROSCOPY

e8amzP1[P:404-442] Image Pymol Jmol Links: PDB, SCOP, CATH

PCI domain-containing protein ; ELECTRON MICROSCOPY

e8cvtW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7qxnW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7qxpW3[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7qxuW3[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7qxwW1[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7qy7W1[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7qyaW2[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY

e7qybW3[W:421-456] Image Pymol Jmol Links: PDB, SCOP, CATH

26S proteasome non-ATPase regulatory subunit 12 ; ELECTRON MICROSCOPY