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
binds one zinc with two CxxC motifs on two beta-hairpins
binds two zincs. one in the same way as rubredoxin, probably related to rubredoxin. the other in a similar way as glucocorticoid receptor
binds zinc with one beta-hairpin and one helix, the helix binds DNA
Representatives:
e2j8bA1[A:1-77] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 GLYCOPROTEIN ; X-RAY DIFFRACTION 1.10Å
e7bprA2[A:52-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Testis-expressed protein 101 ; ligands: PT ; X-RAY DIFFRACTION 1.950Å
e7bprB2[B:52-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Testis-expressed protein 101 ; ligands: PT ; X-RAY DIFFRACTION 1.950Å
e7bpsA2[A:51-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Testis-expressed protein 101 ; ligands: SO4 ; X-RAY DIFFRACTION 2.350Å
e7bpsB2[B:51-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Testis-expressed protein 101 ; X-RAY DIFFRACTION 2.350Å
e2ux2A1[A:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 GLYCOPROTEIN ; X-RAY DIFFRACTION 1.8Å
e2ux2B1[B:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 GLYCOPROTEIN ; X-RAY DIFFRACTION 1.8Å
e2uwrA1[A:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 GLYCOPROTEIN ; X-RAY DIFFRACTION 1.34Å
e1ergA1[A:1-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 ; SOLUTION NMR
e1cdsA1[A:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 ; SOLUTION NMR
e1cdrA1[A:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 ; SOLUTION NMR
e1cdqA1[A:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 ; SOLUTION NMR
e2ux2C1[C:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 GLYCOPROTEIN ; X-RAY DIFFRACTION 1.8Å
e2i9bG1[G:1-80] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; X-RAY DIFFRACTION 2.8Å
e1ywhM1[M:1-80] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; ligands: NAG,SO4 ; X-RAY DIFFRACTION 2.7Å
e1ywhO1[O:1-80] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; ligands: NAG,SO4 ; X-RAY DIFFRACTION 2.7Å
e3bt1U1[U:1-80] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; ligands: NAG ; X-RAY DIFFRACTION 2.800Å
e1ywhE1[E:1-79] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; ligands: NAG,SO4 ; X-RAY DIFFRACTION 2.7Å
e2i9bH1[H:1-80] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; X-RAY DIFFRACTION 2.8Å
e2i9bE1[E:1-80] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; ligands: SO4 ; X-RAY DIFFRACTION 2.8Å
e1ywhC1[C:1-80] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; ligands: NAG,SO4 ; X-RAY DIFFRACTION 2.7Å
e2i9bF1[F:1-80] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; ligands: SO4 ; X-RAY DIFFRACTION 2.8Å
e1ywhI1[I:1-80] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; ligands: NAG,SO4 ; X-RAY DIFFRACTION 2.7Å
e1ywhK1[K:1-78] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; ligands: NAG,SO4 ; X-RAY DIFFRACTION 2.7Å
e1ywhA1[A:1-80] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; ligands: NAG,SO4 ; X-RAY DIFFRACTION 2.7Å
e1ywhG1[G:1-79] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; ligands: NAG,SO4 ; X-RAY DIFFRACTION 2.7Å
e3bt2U1[U:1-80] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UROKINASE PLASMINOGEN ACTIVATOR SURFACE RECEPTOR ; ligands: NAG ; X-RAY DIFFRACTION 2.5Å
e2ofsA1[A:0-74] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 glycoprotein ; X-RAY DIFFRACTION 2.12Å
e1erhA1[A:1-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 ; SOLUTION NMR
e4bikB1[B:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 GLYCOPROTEIN ; X-RAY DIFFRACTION 3.49Å
e4bikD1[D:0-76] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 GLYCOPROTEIN ; X-RAY DIFFRACTION 3.49Å
e3u73U7[U:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UROKINASE PLASMINOGEN ACTIVATOR SURFACE RECEPTOR ; ligands: NAG ; X-RAY DIFFRACTION 3.19Å
e3u74U4[U:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UROKINASE PLASMINOGEN ACTIVATOR SURFACE RECEPTOR ; ligands: NAG ; X-RAY DIFFRACTION 2.39Å
e4k24U4[U:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Urokinase plasminogen activator surface receptor ; ligands: NAG ; X-RAY DIFFRACTION 4.500Å
e3laqV7[V:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UROKINASE PLASMINOGEN ACTIVATOR SURFACE RECEPTOR ; ligands: NAG ; X-RAY DIFFRACTION 3.2Å
e3laqU7[U:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
UROKINASE PLASMINOGEN ACTIVATOR SURFACE RECEPTOR ; ligands: NAG ; X-RAY DIFFRACTION 3.2Å
e4qtiU2[U:1-80] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; X-RAY DIFFRACTION 3.00Å
e5imtD1[D:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 glycoprotein ; ligands: SO4,ZN ; X-RAY DIFFRACTION 2.7Å
e5imyC1[C:0-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 glycoprotein ; X-RAY DIFFRACTION 2.4Å
e5imyD1[D:0-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 glycoprotein ; X-RAY DIFFRACTION 2.4Å
e6zd0B1[B:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 glycoprotein ; ELECTRON MICROSCOPY
e6zd0D1[D:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 glycoprotein ; ELECTRON MICROSCOPY
e6zd0F1[F:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 glycoprotein ; ELECTRON MICROSCOPY
e7v63B2[B:0-81] Image Pymol Jmol Links: PDB, SCOP, CATHDOI
Urokinase plasminogen activator surface receptor ; ligands: NAG ; X-RAY DIFFRACTION 2.900Å
e7v63A2[A:1-79] Image Pymol Jmol Links: PDB, SCOP, CATHDOI
Urokinase plasminogen activator surface receptor ; ligands: NAG ; X-RAY DIFFRACTION 2.900Å
e8b0fG1[G:1-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 glycoprotein ; ELECTRON MICROSCOPY
e8b0gG1[G:0-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 glycoprotein ; ELECTRON MICROSCOPY
e8b0hG1[G:0-77] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CD59 glycoprotein ; ELECTRON MICROSCOPY
e2muoA1[A:100-181] Image Pymol Jmol Links: PDB, SCOP, CATH
e2mupA1[A:100-181] Image Pymol Jmol Links: PDB, SCOP, CATH
e2n99A1[A:100-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ly-6/neurotoxin-like protein 1 ; SOLUTION NMR
e6e7kD1[D:62-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosylphosphatidylinositol-anchored high density lipoprotein-binding protein 1 ; X-RAY DIFFRACTION 2.8Å
e6oauC1[C:63-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosylphosphatidylinositol-anchored high density lipoprotein-binding protein 1 ; X-RAY DIFFRACTION 2.480Å
e6oauD1[D:63-144] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosylphosphatidylinositol-anchored high density lipoprotein-binding protein 1 ; X-RAY DIFFRACTION 2.480Å
e6oazE1[E:61-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosylphosphatidylinositol-anchored high density lipoprotein-binding protein 1 ; ligands: CA ; X-RAY DIFFRACTION 3.040Å
e6oazF1[F:65-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosylphosphatidylinositol-anchored high density lipoprotein-binding protein 1 ; ligands: CA ; X-RAY DIFFRACTION 3.040Å
e6oazG1[G:63-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosylphosphatidylinositol-anchored high density lipoprotein-binding protein 1 ; ligands: CA ; X-RAY DIFFRACTION 3.040Å
e6oazH1[H:63-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosylphosphatidylinositol-anchored high density lipoprotein-binding protein 1 ; ligands: CA ; X-RAY DIFFRACTION 3.040Å
e6ob0E1[E:61-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosylphosphatidylinositol-anchored high density lipoprotein-binding protein 1 ; X-RAY DIFFRACTION 2.81Å
e6ob0F1[F:63-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosylphosphatidylinositol-anchored high density lipoprotein-binding protein 1 ; X-RAY DIFFRACTION 2.81Å
e6ob0G1[G:63-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosylphosphatidylinositol-anchored high density lipoprotein-binding protein 1 ; X-RAY DIFFRACTION 2.81Å
e6ob0H1[H:63-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Glycosylphosphatidylinositol-anchored high density lipoprotein-binding protein 1 ; X-RAY DIFFRACTION 2.81Å
e6zzeA1[A:100-181] Image Pymol Jmol Links: PDB, SCOP, CATH
e6zzfA1[A:100-181] Image Pymol Jmol Links: PDB, SCOP, CATH
Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
extended segmentsextended, non-globular segments, frequently bind to other proteins to form complexes