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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

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

X: LuxS, MPP, ThrRS/AlaRS common domain

looks like an elaborated ferredoxin

X: ClpS-like

contains a HTH motif

X: T-fold
H: 40S ribosomal protein S3A C-terminal domain
T: 40S ribosomal protein S3A C-terminal domain
F: Ribosomal_S3Ae

PF01015

Representatives:

e2xzm42[4:117-229] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e8p60SB02[SB0:122-232] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8p60RB02[RB0:122-232] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8pplAB1[AB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S3a ; ligands: MET,UNX ; ELECTRON MICROSCOPY

e8ovaA01[A0:116-243] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S3a ; ligands: MG ; ELECTRON MICROSCOPY

e8oveA01[A0:116-243] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S3a ; ligands: MG ; ELECTRON MICROSCOPY

e8cdle2[e:114-231] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ELECTRON MICROSCOPY

e8cdre1[e:114-231] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ELECTRON MICROSCOPY

e8cehe2[e:114-231] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ELECTRON MICROSCOPY

e8cf5e2[e:114-231] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ELECTRON MICROSCOPY

e8cg8e1[e:114-231] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ELECTRON MICROSCOPY

e8cgne1[e:114-231] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ELECTRON MICROSCOPY

e8cive1[e:114-231] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ELECTRON MICROSCOPY

e8ckue2[e:114-231] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ELECTRON MICROSCOPY

e8cmje2[e:114-231] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ELECTRON MICROSCOPY

e8evpBB2[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8evqBB2[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8evrBB1[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8evsBB1[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8evtBB2[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8ewbBB2[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8ewcBB2[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8hkzS3AE2[S3AE:97-197] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8hl3S3AE2[S3AE:97-197] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S3Ae ; ELECTRON MICROSCOPY

e8hl4S3AE1[S3AE:97-197] Image Pymol Jmol Links: PDB, SCOP, CATH

; ELECTRON MICROSCOPY

e5fciS12[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.400Å

e5fcis12[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.400Å

e5fcjS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.100Å

e5fcjs12[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.100Å

e3j38B1[B:117-236] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3j3aB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e2xzn41[4:117-229] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: MG

e3u5cB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3u5gB1[B:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3j20A1[A:96-198] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3zey01[0:116-238] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bpe42[4:117-229] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bpn42[4:117-241] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bpo42[4:117-241] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bpp42[4:117-241] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4kzxB2[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; X-RAY DIFFRACTION 7.81Å

e4kzyB2[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; X-RAY DIFFRACTION 7.01Å

e4kzzB2[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; X-RAY DIFFRACTION 7.03Å

e3j43A2[A:96-198] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bylB2[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bytB2[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3j60B2[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4cuyB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e1vx2B1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e1vx5B1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e1vw9C1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e1vwvC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3j7aB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein eS1 ; ELECTRON MICROSCOPY

e4cxcB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4uq4B1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4uq5B1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e1vxwB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e1vxzB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4w23B2[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4w28B2[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4ujfC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ujhf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: MG,OHX

e4ujkC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ujmf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: MG,OHX

e4ujpC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ujrf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ujuC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ujwf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ujzC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4uk1f1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: MG,OHX

e4uk4C1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4uk6f1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: C,MG,OHX

e4uk9C1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ukbf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ukfC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ukhf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: MG,OHX

e4ukkC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ukmf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: MG,OHX

e4ukpC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ukrf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: MG,OHX

e4ukuC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ukwf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ukzC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ul1f1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: MG,OHX

e4ul4C1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ul6f1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ul9C1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ulbf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4uleC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ulgf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4uljC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ulmf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ulpC1[C:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: OHX

e4ulrf1[f:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

; ligands: MG,OHX

e3j81B2[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 ; ligands: MET,MG ; ELECTRON MICROSCOPY

e3j80B1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 ; ELECTRON MICROSCOPY

e4d61B1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; ELECTRON MICROSCOPY

e4d5lB2[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN ES27 ; ELECTRON MICROSCOPY

e4uer42[4:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ES1 ; ELECTRON MICROSCOPY

e4v6wAB1[AB:117-236] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S3a ; ELECTRON MICROSCOPY

e4ujcCB1[CB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN ES1 ; ELECTRON MICROSCOPY

e4ujdCB1[CB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN ES1 ; ELECTRON MICROSCOPY

e4ujeBB1[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; ELECTRON MICROSCOPY

e4v6xAB1[AB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S3a ; ELECTRON MICROSCOPY

e4v5oA41[A4:117-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; ligands: MG ; X-RAY DIFFRACTION 3.93Å

e4v5oB41[B4:117-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; X-RAY DIFFRACTION 3.93Å

e4v8mA02[A0:116-238] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A, PUTATIVE ; ELECTRON MICROSCOPY

e4btsA42[A4:117-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; X-RAY DIFFRACTION 3.70Å

e4btsB42[B4:117-241] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; X-RAY DIFFRACTION 3.70Å

e4btsC42[C4:117-241] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; X-RAY DIFFRACTION 3.70Å

e4btsD42[D4:117-241] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; X-RAY DIFFRACTION 3.70Å

e4v4nBA2[BA:96-198] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S3AE ; ELECTRON MICROSCOPY

e4v6uAA2[AA:96-198] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S3Ae ; ELECTRON MICROSCOPY

e4v7eBB2[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1E ; ELECTRON MICROSCOPY

e4v92BB1[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ES1 ; ELECTRON MICROSCOPY

e3j7pSB1[SB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ribosomal protein eS1 ; ELECTRON MICROSCOPY

e3j7rSB1[SB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ribosomal protein eS1 ; ELECTRON MICROSCOPY

e3j6xS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1 ; ELECTRON MICROSCOPY

e3j6yS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1 ; ELECTRON MICROSCOPY

e3j77S11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1 ; ELECTRON MICROSCOPY

e3j78S11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1 ; ELECTRON MICROSCOPY

e4u3mS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.000Å

e4u3ms11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.000Å

e4u3nS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: A,C,OHX ; X-RAY DIFFRACTION 3.200Å

e4u3ns11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: A,C,MG,OHX ; X-RAY DIFFRACTION 3.200Å

e4u3uS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 2.900Å

e4u3us11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 2.900Å

e4u4nS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.100Å

e4u4ns11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.100Å

e4u4oS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.600Å

e4u4os11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.600Å

e4u4qS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.000Å

e4u4qs11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.000Å

e4u4rS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 2.800Å

e4u4rs11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 2.800Å

e4u4uS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.000Å

e4u4us11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.000Å

e4u4yS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.200Å

e4u4ys11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.200Å

e4u4zS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.100Å

e4u4zs11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.100Å

e4u50S11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.200Å

e4u50s11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.200Å

e4u51S11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.200Å

e4u51s11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.200Å

e4u52S11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.000Å

e4u52s11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.000Å

e4u53S11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.300Å

e4u53s11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.300Å

e4u55S11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.200Å

e4u55s11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.200Å

e4u56S11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.450Å

e4u56s11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.450Å

e4u6fS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 2.900Å

e4u6fs11[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 2.900Å

e4v88AB1[AB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

40S ribosomal protein S1-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.0Å

e4v88CB1[CB:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

40S ribosomal protein S1-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.0Å

e4v8yAB1[AB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S1-A ; ligands: MG,OHX ; ELECTRON MICROSCOPY

e4v8zAB1[AB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S1-A ; ligands: MG,OHX ; ELECTRON MICROSCOPY

e5aj0BB1[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S3a ; ELECTRON MICROSCOPY

e4ug0SB2[SB:114-234] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; ELECTRON MICROSCOPY

e5a2qB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RIBOSOMAL PROTEIN ES1 ; ELECTRON MICROSCOPY

e3jajSB1[SB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ribosomal protein eS1 ; ELECTRON MICROSCOPY

e3janSB2[SB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ribosomal protein eS1 ; ELECTRON MICROSCOPY

e3jagBB1[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 ; ELECTRON MICROSCOPY

e3jahBB1[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 ; ELECTRON MICROSCOPY

e3jaiBB1[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 ; ELECTRON MICROSCOPY

e3jamB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 ; ELECTRON MICROSCOPY

e3japB2[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 ; ELECTRON MICROSCOPY

e3jaqB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: MET,MG

e3jbnB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein eS1 ; ELECTRON MICROSCOPY

e3jboB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein eS1 ; ELECTRON MICROSCOPY

e3jbpB1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein eS1 ; ELECTRON MICROSCOPY

e5flxB2[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S RIBOSOMAL PROTEIN S3A ; ELECTRON MICROSCOPY

e5it9B1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ribosomal protein eS1 ; ELECTRON MICROSCOPY

e5dc3S11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; X-RAY DIFFRACTION 3.250Å

e5dc3s12[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; X-RAY DIFFRACTION 3.250Å

e5i4lS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.100Å

e5i4ls12[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.100Å

e5it7B1[B:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1 ; ELECTRON MICROSCOPY

e5k0yi1[i:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ribosomal protein eS1 ; ELECTRON MICROSCOPY

e5jpqo2[o:117-229] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 ; ELECTRON MICROSCOPY

e5datS11[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.15Å

e5dats12[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.15Å

e5juoYA1[YA:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 (yeast S1) ; ELECTRON MICROSCOPY

e5jupYA2[YA:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 (yeast S1) ; ELECTRON MICROSCOPY

e5jusYA2[YA:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 (yeast S1) ; ELECTRON MICROSCOPY

e5jutYA2[YA:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 (yeast S1) ; ELECTRON MICROSCOPY

e5juuYA2[YA:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 (yeast S1) ; ELECTRON MICROSCOPY

e5lybS12[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: MG,OHX ; X-RAY DIFFRACTION 3.250Å

e5lybs12[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: OHX ; X-RAY DIFFRACTION 3.250Å

e5tgaS12[S1:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: C,MG,OHX,PRO ; X-RAY DIFFRACTION 3.300Å

e5tgas12[s1:114-235] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S1-A ; ligands: C,MG,OHX,PRO ; X-RAY DIFFRACTION 3.300Å

e5lzsBB1[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S3a ; ELECTRON MICROSCOPY

e5lztBB1[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 ; ELECTRON MICROSCOPY

e5lzuBB2[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S3a ; ELECTRON MICROSCOPY

e5lzvBB1[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 ; ELECTRON MICROSCOPY

e5lzwBB2[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

eS1 ; ELECTRON MICROSCOPY

e5lzxBB2[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S3a ; ELECTRON MICROSCOPY

e5lzyBB2[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S3a ; ELECTRON MICROSCOPY

e5lzzBB1[BB:114-233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein S3a ; ELECTRON MICROSCOPY

Next

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