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




Representatives:
e3zy2A1[A:25-213]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
PUTATIVE GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 1 ; ligands: GDP ; X-RAY DIFFRACTION 1.54Å
e3zy2A2[A:214-380]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
PUTATIVE GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 1 ; ligands: GDP,MN ; X-RAY DIFFRACTION 1.54Å
e3zy3A2[A:200-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PUTATIVE GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 1 ; ligands: GDP,SO4 ; X-RAY DIFFRACTION 1.86Å
e3zy3B2[B:200-380] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PUTATIVE GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 1 ; ligands: GDP ; X-RAY DIFFRACTION 1.86Å
e3zy4A2[A:200-380] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PUTATIVE GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 1 ; ligands: SO4 ; X-RAY DIFFRACTION 1.74Å
e3zy5A2[A:200-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PUTATIVE GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 1 ; ligands: GFB ; X-RAY DIFFRACTION 1.96Å
e3zy6A2[A:200-380] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PUTATIVE GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 1 ; ligands: GFB ; X-RAY DIFFRACTION 1.91Å
e4ap6A2[A:242-429] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 2 ; ligands: GFB ; X-RAY DIFFRACTION 3.401Å
e4ap6D4[D:242-429] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 2 ; ligands: GFB ; X-RAY DIFFRACTION 3.401Å
e4ap6C4[C:242-429] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 2 ; ligands: GFB ; X-RAY DIFFRACTION 3.401Å
e4ap6B4[B:242-429] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 2 ; ligands: GFB,NAG ; X-RAY DIFFRACTION 3.401Å
e4ap5B4[B:242-429] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 2 ; ligands: MG,NAG ; X-RAY DIFFRACTION 3.0Å
e4ap5A4[A:242-429] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 2 ; ligands: CL,NAG ; X-RAY DIFFRACTION 3.0Å
e5foeA2[A:239-426] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 2,Thrombospondin-1 ; ligands: EDO,GDP ; X-RAY DIFFRACTION 1.98Å
e5foeB1[B:239-425] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 2,Thrombospondin-1 ; ligands: GDP ; X-RAY DIFFRACTION 1.98Å
e5ux6A1[A:200-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GOL ; X-RAY DIFFRACTION 2.087Å
e5ux6B2[B:200-383] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; X-RAY DIFFRACTION 2.087Å
e5uxhA1[A:200-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GFB ; X-RAY DIFFRACTION 2.41Å
e5uxhB2[B:200-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GFB ; X-RAY DIFFRACTION 2.41Å
e5kxhA2[A:205-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP ; X-RAY DIFFRACTION 1.328Å
e5kxqA2[A:205-383] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP ; X-RAY DIFFRACTION 1.9Å
e5kxqB2[B:205-383] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP,NA ; X-RAY DIFFRACTION 1.9Å
e5kxqC1[C:205-383] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP,NA ; X-RAY DIFFRACTION 1.9Å
e5kxqD2[D:205-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP ; X-RAY DIFFRACTION 1.9Å
e5ky0A2[A:205-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP ; X-RAY DIFFRACTION 1.53Å
e5ky2A2[A:205-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP ; X-RAY DIFFRACTION 1.47Å
e5ky3A1[A:205-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GFB ; X-RAY DIFFRACTION 1.526Å
e5ky4A2[A:205-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP,PGO ; X-RAY DIFFRACTION 1.47Å
e5ky5A1[A:205-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP ; X-RAY DIFFRACTION 1.50Å
e5ky7A2[A:205-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP ; X-RAY DIFFRACTION 1.60Å
e5ky8A1[A:205-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP ; X-RAY DIFFRACTION 1.65Å
e5ky9A2[A:205-384] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP ; X-RAY DIFFRACTION 1.83Å
e8ay1A1[A:239-424] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 2,Spondin-1 ; ligands: EDO,SO4 ; X-RAY DIFFRACTION 2.13Å
e8ay1B1[B:239-424] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 2,Spondin-1 ; ligands: EDO,GOL,SO4 ; X-RAY DIFFRACTION 2.13Å

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