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




Representatives:
e4rg6A1[A:5-774]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
Cell division cycle protein 27 homolog ; X-RAY DIFFRACTION 3.3Å
e8pkpP1[P:5-171,P:452-768] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e8tauJ1[J:2-170,J:451-780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8tarP1[P:5-176,P:446-769] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8tauP1[P:5-176,P:446-769] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e5khrF1[F:5-170,F:451-765] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e5khuH1[H:5-171,H:456-767] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e5g04F1[F:5-170,F:451-782] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CELL DIVISION CYCLE PROTEIN 27 HOMOLOG ; ELECTRON MICROSCOPY
e5g04H1[H:5-170,H:451-767] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CELL DIVISION CYCLE PROTEIN 27 HOMOLOG ; ELECTRON MICROSCOPY
e5g05F1[F:5-171,F:455-755] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CELL DIVISION CYCLE PROTEIN 27 HOMOLOG ; ELECTRON MICROSCOPY
e5g05H1[H:5-175,H:451-767] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CELL DIVISION CYCLE PROTEIN 27 HOMOLOG ; ELECTRON MICROSCOPY
e4ui9F1[F:5-170,F:451-819] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CELL DIVISION CYCLE PROTEIN 27 HOMOLOG ; ELECTRON MICROSCOPY
e5a31F1[F:5-170,F:451-782] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ANAPHASE-PROMOTING COMPLEX SUBUNIT 3 ; ELECTRON MICROSCOPY
e4rg6B1[B:5-774] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; X-RAY DIFFRACTION 3.3Å
e4rg7A1[A:5-774] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; X-RAY DIFFRACTION 4.25Å
e4rg7B1[B:6-171,B:465-774] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; X-RAY DIFFRACTION 4.25Å
e4rg9A1[A:6-774] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; X-RAY DIFFRACTION 3.25Å
e4rg9B1[B:5-774] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; X-RAY DIFFRACTION 3.25Å
e5a31H1[H:5-170,H:451-767] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ANAPHASE-PROMOTING COMPLEX SUBUNIT 3 ; ELECTRON MICROSCOPY
e4ui9H1[H:5-170,H:451-771] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CELL DIVISION CYCLE PROTEIN 27 HOMOLOG ; ELECTRON MICROSCOPY
e5lcwF1[F:5-170,F:451-767] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e5lcwH1[H:5-170,H:451-767] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e5khrH1[H:5-170,H:451-767] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e5khuF1[F:5-171,F:458-763] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e5l9uF1[F:5-170,F:451-766] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e5l9uH1[H:5-170,H:451-771] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e5l9tF1[F:5-170,F:451-766] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e5l9tH1[H:5-170,H:451-771] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e6q6gJ1[J:5-170,J:451-780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e6q6gP1[P:5-171,P:452-768] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e6q6hJ1[J:5-170,J:451-780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e6q6hP1[P:5-171,P:452-768] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e6tljF1[F:5-170,F:451-767] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e6tljH1[H:5-170,H:451-767] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e6tm5F1[F:5-171,F:455-755] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e6tm5H1[H:5-175,H:451-767] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e6tntF1[F:5-171,F:455-755] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e6tntH1[H:5-175,H:451-767] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e7qe7J1[J:2-176,J:446-780] Image Pymol Jmol Links: PDB, SCOP, CATH
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e7qe7P1[P:5-176,P:446-769] Image Pymol Jmol Links: PDB, SCOP, CATH
Cell division cycle protein 27 homolog ; ELECTRON MICROSCOPY
e8pkpJ1[J:5-170,J:451-768] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e8tarJ1[J:2-170,J:451-780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY

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