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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: HTH
H: HTH
T: DNA-binding domain of intron-encoded endonucleases

lacks the N-terminal helix, circularly permuted wing

T: FF domain
F: Ribosomal_S17e

PF00833

Representatives:

e1rq6A1[A:1-62] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S17e ; SOLUTION NMR

e2xzmV1[V:2-122] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4btsAV1[AV:2-120] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN RPS17E ; X-RAY DIFFRACTION 3.70Å

e4btsBV1[BV:2-120] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN RPS17E ; X-RAY DIFFRACTION 3.70Å

e4btsCV1[CV:2-120] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN RPS17E ; X-RAY DIFFRACTION 3.70Å

e4btsDV1[DV:2-120] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN RPS17E ; X-RAY DIFFRACTION 3.70Å

e3j6x171[17:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17 ; ELECTRON MICROSCOPY

e3j6y171[17:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17 ; ELECTRON MICROSCOPY

e3j77171[17:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17 ; ELECTRON MICROSCOPY

e3j78171[17:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17 ; ELECTRON MICROSCOPY

e3j7aW1[W:3-110] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein eS17 ; ELECTRON MICROSCOPY

e3j80R1[R:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS17 ; ELECTRON MICROSCOPY

e3j81R1[R:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS17 ; ELECTRON MICROSCOPY

e4u3mC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.000Å

e4u3mc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.000Å

e4u3nC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: A,C,OHX ; X-RAY DIFFRACTION 3.200Å

e4u3nc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: A,C,MG ; X-RAY DIFFRACTION 3.200Å

e4u3uC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 2.900Å

e4u3uc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 2.900Å

e4u4nC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.100Å

e4u4nc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.100Å

e4u4oC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.600Å

e4u4oc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.600Å

e4u4qC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.000Å

e4u4qc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.000Å

e4u4rC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 2.800Å

e4u4rc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 2.800Å

e4u4uC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.000Å

e4u4uc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.000Å

e4u4yC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.200Å

e4u4yc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.200Å

e4u4zC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; X-RAY DIFFRACTION 3.100Å

e4u4zc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.100Å

e4u50C71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.200Å

e4u50c71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.200Å

e4u51C71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.200Å

e4u51c71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.200Å

e4u52C71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; X-RAY DIFFRACTION 3.000Å

e4u52c71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.000Å

e4u53C71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.300Å

e4u53c71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.300Å

e4u55C71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.200Å

e4u55c71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.200Å

e4u56C71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.450Å

e4u56c71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.450Å

e4u6fC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 2.900Å

e4u6fc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 2.900Å

e4uerV1[V:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ES17 ; ELECTRON MICROSCOPY

e4v5oAV1[AV:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RPS17E ; X-RAY DIFFRACTION 3.93Å

e4v5oBV1[BV:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RPS17E ; X-RAY DIFFRACTION 3.93Å

e4v88AR1[AR:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.0Å

e4v88CR1[CR:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.0Å

e4v8yAR1[AR:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S17-A ; ligands: OHX ; ELECTRON MICROSCOPY

e4v8zAR1[AR:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S17-A ; ligands: OHX ; ELECTRON MICROSCOPY

e4v92BR1[BR:2-125] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ES17 ; ELECTRON MICROSCOPY

e4v3pSQ1[SQ:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-4 ; ELECTRON MICROSCOPY

e3jamR1[R:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS17 ; ELECTRON MICROSCOPY

e3japR1[R:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS17 ; ELECTRON MICROSCOPY

e3jaqR1[R:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH

e3jbnW1[W:3-110] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein eS17 ; ELECTRON MICROSCOPY

e3jboW1[W:3-110] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein eS17 ; ELECTRON MICROSCOPY

e3jbpW1[W:3-110] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein eS17 ; ELECTRON MICROSCOPY

e5fciC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; X-RAY DIFFRACTION 3.400Å

e5fcic71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: MG ; X-RAY DIFFRACTION 3.400Å

e5fcjC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; ligands: OHX ; X-RAY DIFFRACTION 3.100Å

e5fcjc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; X-RAY DIFFRACTION 3.100Å

e5it7R1[R:2-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

KLLA0B01474p ; ELECTRON MICROSCOPY

e5it9R1[R:2-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ribosomal protein eS17 ; ELECTRON MICROSCOPY

e5dc3C71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; X-RAY DIFFRACTION 3.250Å

e5dc3c71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; X-RAY DIFFRACTION 3.250Å

e5i4lC71[C7:2-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; X-RAY DIFFRACTION 3.100Å

e5i4lc71[c7:2-122] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17-A ; X-RAY DIFFRACTION 3.100Å

e7mdzRR1[RR:2-133] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS17 ; ELECTRON MICROSCOPY

e7ls1z21[z2:2-135] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17 ; ELECTRON MICROSCOPY

e7ls2z21[z2:2-135] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17 ; ELECTRON MICROSCOPY

e7r81S21[S2:2-130] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17 ; ELECTRON MICROSCOPY

e3o2zK1[K:7-73] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3zeyL1[L:2-128] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4v6iAQ1[AQ:1-136] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein rpS17 (S17e) ; ELECTRON MICROSCOPY

e4v7eBR1[BR:1-116] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S17E ; 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