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
Representatives:
e2uubK1[K:11-129] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S RIBOSOMAL PROTEIN S11 ; X-RAY DIFFRACTION 2.800Å
e7m5dp1[p:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e7q4kAK1[AK:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e8a22Bk1[Bk:1-116] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
uS11m ; ligands: K ; ELECTRON MICROSCOPY
e8apnBk1[Bk:1-116] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
uS11m ; ligands: K ; ELECTRON MICROSCOPY
e8c00Z1[Z:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ELECTRON MICROSCOPY
e8c01Z1[Z:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ELECTRON MICROSCOPY
e7wtlSO1[SO:10-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ELECTRON MICROSCOPY
e7wtmSO1[SO:10-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ELECTRON MICROSCOPY
e7wtnSO1[SO:10-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ELECTRON MICROSCOPY
e7wtoSO1[SO:10-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ELECTRON MICROSCOPY
e7wtpSO1[SO:10-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ELECTRON MICROSCOPY
e7wtqSO1[SO:10-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ELECTRON MICROSCOPY
e7wtrSO1[SO:10-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ELECTRON MICROSCOPY
e7zpqAO1[AO:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-B ; ELECTRON MICROSCOPY
e7zrsAO1[AO:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-B ; ELECTRON MICROSCOPY
e7zuwAO1[AO:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-B ; ELECTRON MICROSCOPY
e7zuxDO1[DO:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-B ; ELECTRON MICROSCOPY
e7qcaSO01[SO0:7-135] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S14 ; ligands: K,MG ; ELECTRON MICROSCOPY
e7qjhSO01[SO0:7-135] Image Pymol Jmol Links: PDB, SCOP, CATH
e7qjhRO01[RO0:7-135] Image Pymol Jmol Links: PDB, SCOP, CATH
e8csrI1[I:58-194] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S11, mitochondrial ; ELECTRON MICROSCOPY
e8cssI1[I:58-194] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S11, mitochondrial ; ELECTRON MICROSCOPY
e8cstI1[I:58-194] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S11, mitochondrial ; ELECTRON MICROSCOPY
e8csuI1[I:58-194] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
28S ribosomal protein S11, mitochondrial ; ELECTRON MICROSCOPY
e7qggSO1[SO:15-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ELECTRON MICROSCOPY
e7r4xO1[O:25-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ligands: K,MG ; ELECTRON MICROSCOPY
e7wtsO1[O:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ELECTRON MICROSCOPY
e7wttO1[O:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ELECTRON MICROSCOPY
e7wtuO1[O:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ELECTRON MICROSCOPY
e7wtvO1[O:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ELECTRON MICROSCOPY
e7wtwO1[O:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ELECTRON MICROSCOPY
e7wtxO1[O:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ELECTRON MICROSCOPY
e7wtzO1[O:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ELECTRON MICROSCOPY
e7wu0O1[O:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ELECTRON MICROSCOPY
e7zjwSZ1[SZ:16-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein uS11 ; ligands: NA,SER ; ELECTRON MICROSCOPY
e8fomQK1[QK:11-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; X-RAY DIFFRACTION 3.400Å
e8fomXK1[XK:11-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; X-RAY DIFFRACTION 3.400Å
e8fonQK1[QK:11-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; X-RAY DIFFRACTION 3.500Å
e8fonXK1[XK:11-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ligands: MG ; X-RAY DIFFRACTION 3.500Å
e8a3lK1[K:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e8fizAM1[AM:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e8g6wK1[K:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e7uvvk1[k:12-128] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e7uvwk1[k:12-128] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e7uvxk1[k:12-128] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e7uvyk1[k:12-128] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e7uvzk1[k:12-128] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e7uw1k1[k:12-128] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e7ztaS1111[S111:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e8br3SO01[SO0:7-135] Image Pymol Jmol Links: PDB, SCOP, CATH
e8br8SQ1[SQ:26-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein S14 ; ELECTRON MICROSCOPY
e8brmSQ1[SQ:27-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein S14 ; ELECTRON MICROSCOPY
e8bsiSQ1[SQ:28-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein S14 ; ELECTRON MICROSCOPY
e8bsjSQ1[SQ:28-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein S14 ; ELECTRON MICROSCOPY
e8btdSQ1[SQ:25-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein S14 ; ELECTRON MICROSCOPY
e8btrSQ1[SQ:26-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein S14 ; ELECTRON MICROSCOPY
e7z3nSO1[SO:16-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-like protein ; ligands: MG ; ELECTRON MICROSCOPY
e7z3oSO1[SO:16-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-like protein ; ELECTRON MICROSCOPY
e8bqdZ1[Z:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-B ; ELECTRON MICROSCOPY
e8bqxZ1[Z:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-B ; ELECTRON MICROSCOPY
e8cahZ1[Z:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ELECTRON MICROSCOPY
e8casZ1[Z:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ELECTRON MICROSCOPY
e8cbjO1[O:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ELECTRON MICROSCOPY
e8btkAn1[An:16-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ligands: MG ; ELECTRON MICROSCOPY
e8g5ySO1[SO:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ligands: K,MET,MG ; ELECTRON MICROSCOPY
e8g5zSO1[SO:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
uS11 ; ligands: MET,MG,PHE ; ELECTRON MICROSCOPY
e8g60SO1[SO:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
uS11 ; ligands: MET,MG,PHE ; ELECTRON MICROSCOPY
e8g61SO1[SO:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ligands: MET,MG ; ELECTRON MICROSCOPY
e8g6jSO1[SO:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ligands: MET,MG,PHE ; ELECTRON MICROSCOPY
e8glpSO1[SO:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ligands: K,MET,MG ; ELECTRON MICROSCOPY
e7xnxSO1[SO:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ligands: MG ; ELECTRON MICROSCOPY
e7xnySO1[SO:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ligands: MG ; ELECTRON MICROSCOPY
e8oipAi1[Ai:60-196] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Mitochondrial ribosomal protein S11 ; ligands: K ; ELECTRON MICROSCOPY
e8buuk1[k:17-131] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e8crxK1[K:19-135] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e8cwoK1[K:19-135] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e8fr8m1[m:23-137] Image Pymol Jmol Links: PDB, SCOP, CATH
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e8fc11k1[1k:13-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: ARG,MG ; X-RAY DIFFRACTION 2.500Å
e8t8b1k1[1k:13-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: ARG,MG ; X-RAY DIFFRACTION 2.650Å
e8fc41k1[1k:13-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: ARG,MG ; X-RAY DIFFRACTION 2.450Å
e8ev61k1[1k:13-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: MG ; X-RAY DIFFRACTION 2.946Å
e8cepK1[K:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Small ribosomal subunit protein uS11 ; ELECTRON MICROSCOPY
e8caiK1[K:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Small ribosomal subunit protein uS11 ; ELECTRON MICROSCOPY
e8ftoK1[K:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8sylk1[k:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8bf7o1[o:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8eyqK1[K:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e7y7cK1[K:13-129] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8bh6k1[k:10-127] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e7pkqk1[k:121-219] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e8apoBk1[Bk:1-116] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8p5dSO01[SO0:7-135] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8q5iP1[P:6-132] Image Pymol Jmol Links: PDB, SCOP, CATHDOI
; ligands: K16,MG ; ELECTRON MICROSCOPY
e8hkxS11P1[S11P:5-132] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e8hkyS11P1[S11P:5-132] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e8hl2S11P1[S11P:5-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
30S ribosomal protein S11 ; ELECTRON MICROSCOPY
e8hl5S11P1[S11P:5-132] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e8auvS1[S:19-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
uS11 (40S ribosomal protein S14) ; ligands: K,MG ; ELECTRON MICROSCOPY
e8b2lS11[S1:19-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-2 ; ligands: K,MG ; ELECTRON MICROSCOPY
e8eubBO1[BO:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8ccsq1[q:11-137] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14-A ; ligands: K,MG ; ELECTRON MICROSCOPY
e8a98SO1[SO:9-144] Image Pymol Jmol Links: PDB, SCOP, CATH
40S ribosomal protein S14 ; ELECTRON MICROSCOPY
e8p2kAn1[An:16-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ligands: MG,N,UNX ; ELECTRON MICROSCOPY
e8bhfP31[P3:16-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: MG ; ELECTRON MICROSCOPY
e8t4sO1[O:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8ppkO1[O:17-151] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
40S ribosomal protein S14 ; ligands: UNX ; ELECTRON MICROSCOPY
e8oinAi1[Ai:60-196] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Mitochondrial ribosomal protein S11 ; ligands: K,PHE ; ELECTRON MICROSCOPY
PreviousPseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
few secondary structure elementsstabilized by cofactors or disulfides
extended segmentsextended, non-globular segments, frequently bind to other proteins to form complexes