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
e3zy3A1[A:24-199] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PUTATIVE GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 1 ; ligands: GDP,SO4 ; X-RAY DIFFRACTION 1.86Å
e3zy3B1[B:26-199] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PUTATIVE GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 1 ; ligands: GDP ; X-RAY DIFFRACTION 1.86Å
e3zy4A1[A:23-199] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PUTATIVE GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 1 ; ligands: BTB,SO4 ; X-RAY DIFFRACTION 1.74Å
e3zy5A1[A:23-199] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PUTATIVE GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 1 ; ligands: BTB,GFB,SO4 ; X-RAY DIFFRACTION 1.96Å
e3zy6A1[A:25-199] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PUTATIVE GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 1 ; ligands: GFB ; X-RAY DIFFRACTION 1.91Å
e4ap6A4[A:41-241] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 2 ; ligands: CL,GFB,NAG ; X-RAY DIFFRACTION 3.401Å
e4ap6D3[D:41-241] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 2 ; ligands: CL,GFB ; X-RAY DIFFRACTION 3.401Å
e4ap6C3[C:41-241] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 2 ; ligands: CL,GFB,NAG ; X-RAY DIFFRACTION 3.401Å
e4ap6B3[B:41-241] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 2 ; ligands: CL,GFB,NAG ; X-RAY DIFFRACTION 3.401Å
e4ap5B3[B:41-241] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 2 ; ligands: NAG ; X-RAY DIFFRACTION 3.0Å
e4ap5A3[A:41-241] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-FUCOSE PROTEIN O-FUCOSYLTRANSFERASE 2 ; ligands: CL,NAG ; X-RAY DIFFRACTION 3.0Å
e5foeA1[A:40-238] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 2,Thrombospondin-1 ; ligands: EDO,GDP,NAG ; X-RAY DIFFRACTION 1.98Å
e5foeB2[B:40-238] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 2,Thrombospondin-1 ; ligands: EDO,GDP,NAG ; X-RAY DIFFRACTION 1.98Å
e5ux6A2[A:28-199] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GOL,NAG ; X-RAY DIFFRACTION 2.087Å
e5ux6B1[B:28-199] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: NAG ; X-RAY DIFFRACTION 2.087Å
e5uxhA2[A:28-199] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GFB,NAG ; X-RAY DIFFRACTION 2.41Å
e5uxhB1[B:28-199] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GFB,NAG ; X-RAY DIFFRACTION 2.41Å
e5kxhA1[A:32-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP,GOL,NAG ; X-RAY DIFFRACTION 1.328Å
e5kxqA1[A:33-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP,NAG ; X-RAY DIFFRACTION 1.9Å
e5kxqB1[B:33-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP,NAG ; X-RAY DIFFRACTION 1.9Å
e5kxqC2[C:33-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP,NAG ; X-RAY DIFFRACTION 1.9Å
e5kxqD1[D:33-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP,NAG ; X-RAY DIFFRACTION 1.9Å
e5ky0A1[A:31-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP,GOL,NAG ; X-RAY DIFFRACTION 1.53Å
e5ky2A1[A:30-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: BGC,GDP,GOL,NAG ; X-RAY DIFFRACTION 1.47Å
e5ky3A2[A:31-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GFB,GOL,NAG ; X-RAY DIFFRACTION 1.526Å
e5ky4A1[A:31-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP,NAG,PGO ; X-RAY DIFFRACTION 1.47Å
e5ky5A2[A:33-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP,GOL,NAG ; X-RAY DIFFRACTION 1.50Å
e5ky7A1[A:33-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: BGC,GDP,NAG ; X-RAY DIFFRACTION 1.60Å
e5ky8A2[A:33-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: BGC,GDP,NAG ; X-RAY DIFFRACTION 1.65Å
e5ky9A1[A:32-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 1 ; ligands: GDP,NAG ; X-RAY DIFFRACTION 1.83Å
e8ay1A2[A:39-238] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 2,Spondin-1 ; ligands: EDO,NAG,SO4 ; X-RAY DIFFRACTION 2.13Å
e8ay1B2[B:40-238] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
GDP-fucose protein O-fucosyltransferase 2,Spondin-1 ; ligands: EDO,NAG,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