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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

e5uyl191[19:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e5nd8T1[T:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e5nd9T1[T:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e5o60R1[R:2-125] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e5o61R1[R:2-125] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e5nwyd1[d:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e5o2rQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e5nrgN1[N:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; X-RAY DIFFRACTION 3.442Å

e5v7qQ1[Q:2-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e5v93Q1[Q:2-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e5ng8AO1[AO:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH

e5ng8BO1[BO:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH

e5ngmAO1[AO:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e5xymQ1[Q:2-125] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e5myjBT1[BT:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7n1pLT1[LT:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e7opeU1[U:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7k50q1[q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7nspQ1[Q:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7a0rN1[N:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 3.300Å

e7abzQ1[Q:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7o19BQ1[BQ:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7a0sN1[N:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 3.210Å

e7ac7Q1[Q:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e7acjQ1[Q:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e7acrQ1[Q:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e7k51q1[q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7k52q1[q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7k53q1[q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7k54q1[q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7k55q1[q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7lv0q1[q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7n2cLT1[LT:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7n2uLT1[LT:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e7n2vLT1[LT:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e7n30LT1[LT:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7n31LT1[LT:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7nsoQ1[Q:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7nsqQ1[Q:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7o1aBQ1[BQ:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7o1cBQ1[BQ:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e7oizp1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7oj0p1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7a18N1[N:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 3.300Å

e7asmO1[O:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7asnO1[O:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7asoS1[S:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7aspO1[O:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7cpjQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7lvkY1[Y:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH

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

e7nwtQ1[Q:2-118] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

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

e7p3kp1[p:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pjsQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

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

e7pjtQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pjuQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pjvQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e7pjwQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pjxQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7pjyQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e7pjzQ1[Q:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7rq81U1[1U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e7rq82U1[2U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e7rq91U1[1U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 2.600Å

e7rq92U1[2U:2-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ligands: MG ; X-RAY DIFFRACTION 2.600Å

e7s1gY1[Y:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

e7s1hY1[Y:2-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

50S ribosomal protein L20 ; ELECTRON MICROSCOPY

Previous

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

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

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