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X - Possible homology level

H - Homology level

T - Topology level

F - Family level

* - Provisional representative


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Evolutionary classification of protein domain structures

alpha arraysalpha-helix arrays with mainly perpendicular helices

X: PABP domain-like
H: Ribosomal protein L20
T: Ribosomal protein L20
F: Ribosomal_L20

PF00453

Representatives:

e3j9mR1[R:10-149] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

bL20m ; ligands: MG ; ELECTRON MICROSCOPY

e3j9zLO1[LO:1-117] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e4v19U1[U:10-149] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MITORIBOSOMAL PROTEIN BL20M, MRPL20 ; ligands: MG ; ELECTRON MICROSCOPY

e7pahp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7paip1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pajp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pakp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7palp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pamp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7panp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7paop1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7paqp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7parp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pasp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7patp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7paup1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7ph9p1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7phap1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7phbp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7phcp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pi8p1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pi9p1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7piap1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pibp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7picp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7piop1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pipp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7piqp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pirp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pisp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pitp1[p:1-114] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pkto1[o:2-111] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; ELECTRON MICROSCOPY

e7ttuC1[C:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7ttwC1[C:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7qh6R1[R:10-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L20, mitochondrial ; ELECTRON MICROSCOPY

e7po4R1[R:10-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L20, mitochondrial ; ligands: MG ; ELECTRON MICROSCOPY

e7qi4R1[R:10-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

39S ribosomal protein L20, mitochondrial ; ligands: MG,VAL ; ELECTRON MICROSCOPY

e7sfrQ1[Q:2-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; ELECTRON MICROSCOPY

e8a22Ao1[Ao:7-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

bL20m ; ligands: K ; ELECTRON MICROSCOPY

e8apnAo1[Ao:7-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

bL20m ; ligands: K ; ELECTRON MICROSCOPY

e8a57T1[T:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8a5iT1[T:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8a63T1[T:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8cvj1U1[1U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 2.400Å

e8cvj2U1[2U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 2.400Å

e8cvk1U1[1U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 2.500Å

e8cvk2U1[2U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 2.500Å

e8cvl1U1[1U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 2.300Å

e8cvl2U1[2U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 2.300Å

e8ekb1U1[1U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 2.700Å

e8ekb2U1[2U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 2.700Å

e8aknp1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8am9p1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8anap1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; ELECTRON MICROSCOPY

e8ap4p1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8ayep1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; ELECTRON MICROSCOPY

e8b0xp1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; ELECTRON MICROSCOPY

e8b7yY1[Y:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; ELECTRON MICROSCOPY

e8eiup1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8ekcS1[S:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; ELECTRON MICROSCOPY

e7m5dQ1[Q:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7q4kBQ1[BQ:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7qq3Y1[Y:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7ylaY1[Y:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8a3lp1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8c8xQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8c8yQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8c8zQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8c90Q1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8c91Q1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8c92Q1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8c93Q1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8c94Q1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8c95Q1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8c96Q1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8c98Q1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8c99Q1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8fizBX1[BX:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8g6wp1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L20 ; ligands: K ; ELECTRON MICROSCOPY

e8g6xp1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8g6yp1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7uvvP1[P:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7uvwP1[P:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7uvxP1[P:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7uvyP1[P:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7uvzP1[P:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7uw1P1[P:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7ztaL2011[L201:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8fomRU1[RU:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 3.400Å

e8fomYU1[YU:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 3.400Å

e8fonRU1[RU:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; X-RAY DIFFRACTION 3.500Å

e8fonYU1[YU:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; X-RAY DIFFRACTION 3.500Å

e8crxp1[p:2-120] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8cvmp1[p:2-120] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8fr8W1[W:2-125] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7xamR1[R:2-125] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L20 ; ligands: MG ; ELECTRON MICROSCOPY

e7y41R1[R:2-125] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8buuQ1[Q:2-119] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e8apoAo1[Ao:7-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: K ; ELECTRON MICROSCOPY

e8cgkp1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: K ; ELECTRON MICROSCOPY

e8camp1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: K ; ELECTRON MICROSCOPY

e8cgvp1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: K,MG ; ELECTRON MICROSCOPY

e8sylS1[S:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: MG,PHE ; ELECTRON MICROSCOPY

e8bf7N1[N:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e7y7cp1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8fc11U1[1U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: ARG,MG ; X-RAY DIFFRACTION 2.500Å

e8t8b1U1[1U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: ARG,MG ; X-RAY DIFFRACTION 2.650Å

e8fc41U1[1U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: ARG,MG ; X-RAY DIFFRACTION 2.450Å

e8ev61U1[1U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: MG ; X-RAY DIFFRACTION 2.946Å

e8oinBY1[BY:10-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mitochondrial ribosomal protein L20 ; ligands: MG,PHE ; ELECTRON MICROSCOPY

Previous

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