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
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Representatives:
e5c8sB2[B:289-525]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
Guanine-N7 methyltransferase ; ligands: G3A,SAH,ZN ; X-RAY DIFFRACTION 3.300Å
e8frkA1[A:79-402,A:433-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: K,MJ7,ZN ; X-RAY DIFFRACTION 1.606Å
e5c8tB2[B:289-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Guanine-N7 methyltransferase ; ligands: SAM,ZN ; X-RAY DIFFRACTION 3.200Å
e5c8tD1[D:289-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Guanine-N7 methyltransferase ; ligands: SAM,ZN ; X-RAY DIFFRACTION 3.200Å
e5c8uB1[B:289-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Guanine-N7 methyltransferase ; ligands: ZN ; X-RAY DIFFRACTION 3.400Å
e5c8uD1[D:289-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Guanine-N7 methyltransferase ; ligands: ZN ; X-RAY DIFFRACTION 3.400Å
e5c8sD2[D:289-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Guanine-N7 methyltransferase ; ligands: G3A,SAH,ZN ; X-RAY DIFFRACTION 3.300Å
e5nfyB1[B:289-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Polyprotein 1ab ; ligands: ZN ; X-RAY DIFFRACTION 3.382Å
e5nfyA1[A:289-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Polyprotein 1ab ; ligands: ZN ; X-RAY DIFFRACTION 3.382Å
e5nfyC1[C:289-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Polyprotein 1ab ; ligands: ZN ; X-RAY DIFFRACTION 3.382Å
e5nfyD1[D:289-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Polyprotein 1ab ; ligands: ZN ; X-RAY DIFFRACTION 3.382Å
e7egqX2[X:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease ; ligands: ZN ; ELECTRON MICROSCOPY
e7n0cB2[B:289-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease ; ligands: ZN ; ELECTRON MICROSCOPY
e7egqK2[K:289-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease ; ligands: ZN ; ELECTRON MICROSCOPY
e7eizK2[K:289-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease ; ligands: ZN ; ELECTRON MICROSCOPY
e7n0bB2[B:289-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease ; ligands: ZN ; ELECTRON MICROSCOPY
e7n0dB2[B:289-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease ; ligands: 1N7,ZN ; ELECTRON MICROSCOPY
e7n0dD2[D:289-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease ; ligands: 1N7,ZN ; ELECTRON MICROSCOPY
e7n0dF2[F:289-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease ; ligands: 1N7,ZN ; ELECTRON MICROSCOPY
e7n0dH2[H:289-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease ; ligands: 1N7,ZN ; ELECTRON MICROSCOPY
e7qgiD1[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 1.65Å
e7qifD1[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease nsp14 ; ligands: GTG,PO4,ZN ; X-RAY DIFFRACTION 2.53Å
e7r2vA1[A:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease nsp14 ; ligands: PEG,SAH,ZN ; X-RAY DIFFRACTION 2.53Å
e5skwD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LF6,PO4,ZN ; X-RAY DIFFRACTION 2.093Å
e5smkD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 1.655Å
e5skxD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 2.342Å
e5skyD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 2.250Å
e5skzD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: NVD,PO4,ZN ; X-RAY DIFFRACTION 1.960Å
e5sl0D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: B0V,PO4,ZN ; X-RAY DIFFRACTION 2.000Å
e5sl1D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: O2A,PO4,ZN ; X-RAY DIFFRACTION 2.380Å
e5sl2D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LFO,PO4,ZN ; X-RAY DIFFRACTION 1.740Å
e5sl3D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LGR,PO4,ZN ; X-RAY DIFFRACTION 1.990Å
e5sl4D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LHR,PO4,ZN ; X-RAY DIFFRACTION 1.940Å
e5sl5D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,WNV,ZN ; X-RAY DIFFRACTION 2.360Å
e5sl6D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: 60P,PO4,ZN ; X-RAY DIFFRACTION 2.290Å
e5sl7D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,W0G,ZN ; X-RAY DIFFRACTION 1.840Å
e5sl8D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: JGD,PO4,ZN ; X-RAY DIFFRACTION 2.070Å
e5sl9D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: O0S,PO4,ZN ; X-RAY DIFFRACTION 1.750Å
e5slaD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LJR,PO4,ZN ; X-RAY DIFFRACTION 1.700Å
e5slbD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LJK,PO4,ZN ; X-RAY DIFFRACTION 1.800Å
e5slcD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,U1V,ZN ; X-RAY DIFFRACTION 1.670Å
e5sldD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LJ6,PO4,ZN ; X-RAY DIFFRACTION 1.580Å
e5sleD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: JGA,PO4,ZN ; X-RAY DIFFRACTION 2.010Å
e5slfD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LJA,PO4,ZN ; X-RAY DIFFRACTION 2.010Å
e5slgD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: NZJ,PO4,ZN ; X-RAY DIFFRACTION 1.970Å
e5slhD1[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LLU,PO4,ZN ; X-RAY DIFFRACTION 1.820Å
e5sliD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LL0,PO4,ZN ; X-RAY DIFFRACTION 1.990Å
e5sljD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LKU,PO4,ZN ; X-RAY DIFFRACTION 2.300Å
e5slkD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LKL,PO4,ZN ; X-RAY DIFFRACTION 2.210Å
e5sllD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 1.810Å
e5slmD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,WN1,ZN ; X-RAY DIFFRACTION 2.050Å
e5slnD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LUY,PO4,ZN ; X-RAY DIFFRACTION 2.210Å
e5sloD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: JJM,PO4,ZN ; X-RAY DIFFRACTION 1.830Å
e5slpD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,UWY,ZN ; X-RAY DIFFRACTION 1.820Å
e5slqD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: ELQ,PO4,ZN ; X-RAY DIFFRACTION 2.110Å
e5slrD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 1.860Å
e5slsD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,SZE,ZN ; X-RAY DIFFRACTION 2.290Å
e5sltD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LNS,PO4,ZN ; X-RAY DIFFRACTION 1.900Å
e5sluD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 2.090Å
e5slvD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 2.050Å
e5slwD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,U0V,ZN ; X-RAY DIFFRACTION 2.050Å
e5slxD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LMW,PO4,ZN ; X-RAY DIFFRACTION 1.760Å
e5slyD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LM6,PO4,ZN ; X-RAY DIFFRACTION 2.020Å
e5slzD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 2.540Å
e5sm0D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LQI,PO4,ZN ; X-RAY DIFFRACTION 2.090Å
e5sm1D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,WH1,ZN ; X-RAY DIFFRACTION 1.940Å
e5sm2D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LQ3,PO4,ZN ; X-RAY DIFFRACTION 1.780Å
e5sm3D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: GT4,PO4,ZN ; X-RAY DIFFRACTION 2.200Å
e5sm4D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: AWD,PO4,ZN ; X-RAY DIFFRACTION 2.160Å
e5sm5D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,S5J,ZN ; X-RAY DIFFRACTION 1.950Å
e5sm6D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: K1A,PO4,ZN ; X-RAY DIFFRACTION 2.290Å
e5sm7D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LPU,PO4,ZN ; X-RAY DIFFRACTION 1.950Å
e5sm8D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,WKA,ZN ; X-RAY DIFFRACTION 1.950Å
e5sm9D2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,VZS,ZN ; X-RAY DIFFRACTION 2.010Å
e5smaD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: NZD,PO4,ZN ; X-RAY DIFFRACTION 2.010Å
e5smbD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LRR,PO4,ZN ; X-RAY DIFFRACTION 2.180Å
e5smcD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LRF,PO4,ZN ; X-RAY DIFFRACTION 2.190Å
e5smdD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 1.830Å
e5smeD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 1.910Å
e5smfD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 2.010Å
e5smgD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: LR9,PO4,ZN ; X-RAY DIFFRACTION 1.870Å
e5smhD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: 7ZC,PO4,ZN ; X-RAY DIFFRACTION 2.640Å
e5smiD2[D:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH
Proofreading exoribonuclease nsp14 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 2.080Å
e7tw7A1[A:79-402,A:433-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Transcription factor ETV6,Proofreading exoribonuclease nsp14 chimera ; ligands: SAM,ZN ; X-RAY DIFFRACTION 1.62Å
e7tw8A1[A:79-402,A:433-525] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Transcription factor ETV6,Proofreading exoribonuclease nsp14 chimera ; ligands: SAH,ZN ; X-RAY DIFFRACTION 1.55Å
e7tw9A1[A:79-402,A:433-523] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Transcription factor ETV6,Proofreading exoribonuclease nsp14 chimera ; ligands: EOH,MOH,PEG,SFG,ZN ; X-RAY DIFFRACTION 1.41Å
e7r2vB1[B:289-524] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Proofreading exoribonuclease nsp14 ; ligands: PEG,SAH,ZN ; X-RAY DIFFRACTION 2.53Å
e8frjA1[A:79-402,A:433-526] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: AW2,ZN ; X-RAY DIFFRACTION 1.57Å
e8bwuA1[A:297-401,A:434-524] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ligands: 6NR,ZN ; X-RAY DIFFRACTION 2.36Å
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Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
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