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
Representatives:
e1jhnA1[A:61-262,A:412-458] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CALNEXIN ; ligands: CA ; X-RAY DIFFRACTION 2.9Å
e8tzrC1[C:18-205,C:300-377] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e3o0vA1[A:15-363] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.30Å
e3posA1[A:12-364] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 1.65Å
e3o0wA1[A:18-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 1.95Å
e3o0xB1[B:18-364] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.0Å
e3o0xA1[A:18-365] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.0Å
e3posB1[B:11-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 1.65Å
e3posC1[C:12-361] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 1.65Å
e3powA1[A:16-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
calreticulin ; ligands: CA ; X-RAY DIFFRACTION 1.540Å
e3rg0A1[A:18-196,A:296-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.55Å
e5hcaA1[A:13-189,A:291-360] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: ACT,BGC,CA,CL,NH4,SO4 ; X-RAY DIFFRACTION 2.14Å
e5hcfD1[D:23-194,D:296-368] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin, putative,Calreticulin, putative ; X-RAY DIFFRACTION 2.45Å
e5lk5A1[A:18-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.28Å
e5hcaB1[B:14-330] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: CA,CL,SO4 ; X-RAY DIFFRACTION 2.14Å
e5hcbA1[A:14-330] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin ; ligands: CA,CL,GOL,SO4 ; X-RAY DIFFRACTION 2.9Å
e5hcbB1[B:14-330] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin ; ligands: CA,CL,SO4 ; X-RAY DIFFRACTION 2.9Å
e5hcfA1[A:23-349,A:351-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin, putative,Calreticulin, putative ; ligands: ACY,CL ; X-RAY DIFFRACTION 2.45Å
e5hcfB1[B:23-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin, putative,Calreticulin, putative ; ligands: BGC ; X-RAY DIFFRACTION 2.45Å
e5hcfC1[C:23-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin, putative,Calreticulin, putative ; ligands: ACY,CL ; X-RAY DIFFRACTION 2.45Å
e5hcfE1[E:23-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin, putative,Calreticulin, putative ; ligands: ACY ; X-RAY DIFFRACTION 2.45Å
e5hcfF1[F:23-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin, putative,Calreticulin, putative ; ligands: BGC ; X-RAY DIFFRACTION 2.45Å
e5lk5B1[B:18-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.28Å
e5lk5C1[C:19-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.28Å
e5lk5D1[D:18-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.28Å
e5lk5E1[E:19-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: CA,CL ; X-RAY DIFFRACTION 2.28Å
e5lk5F1[F:19-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.28Å
e5lk5G1[G:19-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.28Å
e5lk5H1[H:19-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.28Å
e5lk5I1[I:19-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.28Å
e5lk5J1[J:19-367] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: CA ; X-RAY DIFFRACTION 2.28Å
e5hcaC1[C:14-189,C:291-360] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin,Calreticulin ; ligands: ACT,BGC,CA,SO4 ; X-RAY DIFFRACTION 2.14Å
e6enyG2[G:18-195,G:303-349] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Calreticulin ; ligands: BGC,MAN,NAG ; ELECTRON MICROSCOPY
e8tzoC1[C:18-205,C:300-377] Image Pymol Jmol Links: PDB, SCOP, CATH
; ligands: CA ; ELECTRON MICROSCOPY
Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
some similarity with Ig fold
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