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
looks like an elaborated ferredoxin
contains a HTH motif
Representatives:
e1i6uA2[A:68-130] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S RIBOSOMAL PROTEIN S8P ; ligands: SO4 ; X-RAY DIFFRACTION 2.6Å
e1seiA2[A:68-130] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RIBOSOMAL PROTEIN S8 ; X-RAY DIFFRACTION
e7ph9G1[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7phaG2[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7phbG2[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7phcG1[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7pi8G2[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7pi9G1[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7piaG2[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7pibG2[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7picG2[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7pioG1[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7pipG1[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7piqG2[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7pirG1[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7pisG1[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7pitG1[G:78-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7qh4l2[l:68-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7qv2h1[h:68-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7qv3h2[h:68-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7sfrh2[h:68-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8cvj1h2[1h:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; X-RAY DIFFRACTION 2.400Å
e8cvj2h1[2h:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; X-RAY DIFFRACTION 2.400Å
e8cvk1h2[1h:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; X-RAY DIFFRACTION 2.500Å
e8cvk2h2[2h:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; X-RAY DIFFRACTION 2.500Å
e8cvl1h2[1h:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; X-RAY DIFFRACTION 2.300Å
e8cvl2h2[2h:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; X-RAY DIFFRACTION 2.300Å
e8ekb1h1[1h:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; X-RAY DIFFRACTION 2.700Å
e8ekb2h1[2h:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; X-RAY DIFFRACTION 2.700Å
e8aknI2[I:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8am9I2[I:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8ayeH1[H:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8b0xH2[H:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8b7yP1[P:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8eiuH1[H:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8ekch2[h:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7m5dm1[m:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7q4kAH1[AH:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8a3lH2[H:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8fizAQ1[AQ:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8g6wH2[H:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8ghuh1[h:66-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7uvvh2[h:68-131] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7uvwh1[h:68-131] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7uvxh1[h:68-131] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7uvyh2[h:68-131] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7uvzh2[h:68-131] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7uw1h1[h:68-131] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e7ztaS0811[S081:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8fomQH1[QH:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; X-RAY DIFFRACTION 3.400Å
e8fomXH1[XH:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; X-RAY DIFFRACTION 3.400Å
e8fonQH1[QH:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ligands: MG ; X-RAY DIFFRACTION 3.500Å
e8fonXH2[XH:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; X-RAY DIFFRACTION 3.500Å
e8crxH2[H:71-135] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8cwoH2[H:71-135] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8fr8i1[i:68-132] Image Pymol Jmol Links: PDB, SCOP, CATH
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8buuh1[h:68-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S8 ; ELECTRON MICROSCOPY
e8cepH2[H:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Small ribosomal subunit protein uS8 ; ELECTRON MICROSCOPY
e8caiH2[H:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Small ribosomal subunit protein uS8 ; ELECTRON MICROSCOPY
e8ftoH1[H:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8sylh2[h:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8bf7l1[l:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8eyqH1[H:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e7y7cH2[H:67-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8bh6h2[h:68-132] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e8fc11h1[1h:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: ARG,MG ; X-RAY DIFFRACTION 2.500Å
e8t8b1h1[1h:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: ARG,MG ; X-RAY DIFFRACTION 2.650Å
e8fc41h2[1h:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: ARG,MG ; X-RAY DIFFRACTION 2.450Å
e8ev61h2[1h:67-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; X-RAY DIFFRACTION 2.946Å
PreviousPseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
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