Evolutionary classification of protein domain structures
alpha arraysalpha-helix arrays with mainly perpendicular helices
Representatives:
e2uubR1[R:19-88] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S RIBOSOMAL PROTEIN S18 ; X-RAY DIFFRACTION 2.800Å
e3j9mAO1[AO:52-236] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
mS40 (bS18b) ; ligands: ZN ; ELECTRON MICROSCOPY
e6nu2AO1[AO:52-236] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: ZN ; ELECTRON MICROSCOPY
e6nu3AO1[AO:52-236] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: ZN ; ELECTRON MICROSCOPY
e6vmiAO1[AO:49-238] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: ZN ; ELECTRON MICROSCOPY
e6zs9AO1[AO:52-236] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: ZN ; ELECTRON MICROSCOPY
e6zsaAO1[AO:52-236] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: ZN ; ELECTRON MICROSCOPY
e6zsbAO1[AO:52-236] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: ZN ; ELECTRON MICROSCOPY
e6zscAO1[AO:52-236] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: ZN ; ELECTRON MICROSCOPY
e6zsdAO1[AO:52-236] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: ZN ; ELECTRON MICROSCOPY
e6zseAO1[AO:52-236] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: ZN ; ELECTRON MICROSCOPY
e6zsgAO1[AO:52-236] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: ZN ; ELECTRON MICROSCOPY
e7qi6AO1[AO:47-239] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: VAL,ZN ; ELECTRON MICROSCOPY
e8oirAO1[AO:47-239] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: MET,VAL,ZN ; ELECTRON MICROSCOPY
e7qi5AO1[AO:47-239] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S18b, mitochondrial ; ligands: VAL,ZN ; ELECTRON MICROSCOPY
e8anyAO1[AO:47-239] Image Pymol Jmol Links: PDB, SCOP, CATH
28S ribosomal protein S18b, mitochondrial ; ligands: VAL,ZN ; ELECTRON MICROSCOPY
e3j9mAP1[AP:47-142] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
bS18m (bS18c) ; ligands: ZN ; ELECTRON MICROSCOPY
Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
lacks the N-terminal helix, circularly permuted wing
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
extended segmentsextended, non-globular segments, frequently bind to other proteins to form complexes