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
Refs: Structure 14, 1489-1498; Current opinion in structural biology 18, 358-365
Representatives:
e1vqoT1[T:1-119] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S RIBOSOMAL PROTEIN L24P ; ligands: MG,NA,SR ; X-RAY DIFFRACTION 2.2Å
e8eupY1[Y:1-125] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L26 ; ELECTRON MICROSCOPY
e8euyY1[Y:1-125] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26 ; ELECTRON MICROSCOPY
e8ev3Y1[Y:1-125] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L26 ; ELECTRON MICROSCOPY
e8a3dS1[S:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26 ; ligands: K ; ELECTRON MICROSCOPY
e8b5lY1[Y:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L26 ; ELECTRON MICROSCOPY
e8b6cY1[Y:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L26 ; ELECTRON MICROSCOPY
e7qggZ1[Z:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26 ; ligands: MG ; ELECTRON MICROSCOPY
e7tm3Y1[Y:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
uL24 ; ELECTRON MICROSCOPY
e7tutY1[Y:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
uL24 ; ELECTRON MICROSCOPY
e7zjwLb1[Lb:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26 ; ELECTRON MICROSCOPY
e8br3LY01[LY0:1-131] Image Pymol Jmol Links: PDB, SCOP, CATH
e8br8LZ1[LZ:1-133] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L26 ; ELECTRON MICROSCOPY
e8brmLZ1[LZ:1-133] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L26 ; ELECTRON MICROSCOPY
e8bsiLZ1[LZ:1-133] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L26 ; ELECTRON MICROSCOPY
e8bsjLZ1[LZ:1-133] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L26 ; ELECTRON MICROSCOPY
e8btdLZ1[LZ:1-133] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L26 ; ELECTRON MICROSCOPY
e8btrLZ1[LZ:1-133] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L26 ; ELECTRON MICROSCOPY
e8i9pLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-like protein ; ELECTRON MICROSCOPY
e8i9rLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-like protein ; ELECTRON MICROSCOPY
e8i9tLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-like protein ; ELECTRON MICROSCOPY
e8i9vLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-like protein ; ELECTRON MICROSCOPY
e8i9wLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-like protein ; ELECTRON MICROSCOPY
e8i9xLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-like protein ; ELECTRON MICROSCOPY
e8i9yLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-like protein ; ELECTRON MICROSCOPY
e8i9zLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-like protein ; ELECTRON MICROSCOPY
e8ia0LY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-like protein ; ELECTRON MICROSCOPY
e7z3nLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-like protein ; ELECTRON MICROSCOPY
e7z3oLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-like protein ; ELECTRON MICROSCOPY
e8bqdAK1[AK:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-A ; ELECTRON MICROSCOPY
e8bqxAK1[AK:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-A ; ELECTRON MICROSCOPY
e8hfrYU1[YU:2-127] Image Pymol Jmol Links: PDB, SCOP, CATH
60S ribosomal protein L26-A ; ELECTRON MICROSCOPY
e7uooY1[Y:2-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-A ; ELECTRON MICROSCOPY
e7uqbY1[Y:2-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-A ; ELECTRON MICROSCOPY
e7uqzY1[Y:2-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-A ; ELECTRON MICROSCOPY
e7v08Y1[Y:2-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-A ; ELECTRON MICROSCOPY
e8btkBY1[BY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L26 ; ligands: MG ; ELECTRON MICROSCOPY
e8g5yLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26 ; ELECTRON MICROSCOPY
e8g5zLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26 ; ELECTRON MICROSCOPY
e8g60LY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
uL24 ; ELECTRON MICROSCOPY
e8g61LY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26 ; ELECTRON MICROSCOPY
e8g6jLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26 ; ligands: MET,MG,PHE ; ELECTRON MICROSCOPY
e8glpLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26 ; ligands: MET,MG ; ELECTRON MICROSCOPY
e7xnxLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26 ; ELECTRON MICROSCOPY
e7xnyLY1[LY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26 ; ELECTRON MICROSCOPY
e8azwm1[m:1-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8p5dLY01[LY0:1-131] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8b2lm31[m3:1-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
uL24 (60S ribosomal protein L26) ; ELECTRON MICROSCOPY
e8eubAY1[AY:2-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8ccsK1[K:2-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L26-A ; ELECTRON MICROSCOPY
e8hkuL24P1[L24P:1-122] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e8hkyL24P1[L24P:1-122] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e8hl2L24P1[L24P:1-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L24 ; ELECTRON MICROSCOPY
e8hl5L24P1[L24P:1-122] Image Pymol Jmol Links: PDB, SCOP, CATH
; ELECTRON MICROSCOPY
e8q5i91[9:2-126] Image Pymol Jmol Links: PDB, SCOP, CATHDOI
; ELECTRON MICROSCOPY
e8a98W1[W:5-122] Image Pymol Jmol Links: PDB, SCOP, CATH
Putative 60S ribosomal protein L26 ; ELECTRON MICROSCOPY
e8bpoX21[X2:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8fkpLI1[LI:1-134] Image Pymol Jmol Links: PDB, SCOP, CATHDOI
; ELECTRON MICROSCOPY
e8p2kBY1[BY:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L26 ; ligands: SPD ; ELECTRON MICROSCOPY
e8idth1[h:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8bhfL11[L1:1-134] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
PreviousPseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
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