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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: beta-Grasp
H: Ubiquitin-related
T: Alpha-L RNA-binding motif
F: Ribosomal_S4,S4

PF00163 PF01479

Representatives:

e2xzmD1[D:1-179] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4v4vAD1[AD:2-205] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal subunit protein S4 ; ELECTRON MICROSCOPY

e4v7pDD1[DD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.514Å

e4v7sAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.250Å

e4v7sCD1[CD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.250Å

e4v7tAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.194Å

e4v7tCD1[CD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.194Å

e4v7uAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.100Å

e4v7uCD1[CD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.100Å

e4v7vAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.289Å

e4v7vCD1[CD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.289Å

e4v83AD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.5Å

e4v83CD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.5Å

e4v84CD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.4Å

e4v85AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.2Å

e4v8eBG1[BG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: OHX,ZN ; X-RAY DIFFRACTION 3.200Å

e4v8fCG1[CG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: OHX,ZN ; X-RAY DIFFRACTION 3.000Å

e4v8hAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.100Å

e4v8hCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.100Å

e4v8uAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.70Å

e4v95CD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.200Å

e4v97CD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.5Å

e4v9aAG1[AG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.2999Å

e4v9aCG1[CG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.2999Å

e4v9cCD1[CD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.300Å

e4v9dAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.000Å

e4v9iAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal protein S4 ; X-RAY DIFFRACTION 3.3Å

e4v9jAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.86Å

e4v9pHD1[HD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.9Å

e4v9rAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.000Å

e4v9sAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 3.100Å

e2vqeD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.50Å

e2vqfD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: K,ZN ; X-RAY DIFFRACTION 2.90Å

e1vy4CD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.600Å

e1vy7CD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.800Å

e4w29AD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.8Å

e4w29CD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.8Å

e4w2fAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.400Å

e4w2fCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.400Å

e4w2hAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.700Å

e4w2iAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.700Å

e4wf1AD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.090Å

e4wf1CD1[CD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.090Å

e4wwwQD1[QD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.0Å

e4wwwXD1[XD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.0Å

e1xmoD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.25Å

e1xmqD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.0Å

e4ybbAD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.000Å

e2ykrD1[D:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ELECTRON MICROSCOPY

e3j9yd1[d:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4tuaQD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.400Å

e4tuaXD1[XD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.400Å

e4tubQD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.600Å

e4tubXD1[XD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.600Å

e4tucQD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.600Å

e4tucXD1[XD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.600Å

e4tudQD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.600Å

e4tudXD1[XD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.600Å

e4tueQD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.500Å

e4tueXD1[XD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.500Å

e4v5zAd1[Ad:52-154] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S Ribosomal protein S9e ; ELECTRON MICROSCOPY

e4z8c1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.800Å

e4z8c2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.800Å

e4zer1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ARG,MG,SF4 ; X-RAY DIFFRACTION 3.100Å

e4zer2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ARG,SF4 ; X-RAY DIFFRACTION 3.100Å

e4z3q1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: MG,SF4

e4z3q2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: MG,SF4

e4z3r1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: MG,SF4

e4z3r2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: SF4

e4z3s1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.650Å

e4z3s2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.650Å

e4wq13E1[3E:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.100Å

e4wq1321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.100Å

e4wqr3E1[3E:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.150Å

e4wqr321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.150Å

e4wr63E1[3E:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.050Å

e4wr6321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.050Å

e4wra3E1[3E:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.050Å

e4wra321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.050Å

e4wro3E1[3E:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.050Å

e4wro321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.050Å

e4wsd3E1[3E:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.950Å

e4wsd321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.950Å

e4wsm3E1[3E:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.300Å

e4wsm321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.300Å

e4wt13E1[3E:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.050Å

e4wt1321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.050Å

e4wu13E1[3E:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.200Å

e4wu1321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.200Å

e4wzd3E1[3E:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.100Å

e4wzd321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.100Å

e4wzo3E1[3E:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.300Å

e4wzo321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.300Å

e3j9zSD1[SD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e3ja1SD1[SD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4woiAD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.900Å

e4woiDD1[DD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG ; X-RAY DIFFRACTION 2.900Å

e5aa0BH1[BH:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5d8bEA1[EA:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.63Å

e5d8bAC1[AC:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.63Å

e4w4gQD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.300Å

e4w4gXD1[XD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.300Å

e4ypbQD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.400Å

e4ypbXD1[XD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.400Å

e4yzvQD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.100Å

e4yzvXD1[XD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.100Å

e5a9zBH1[BH:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4x62D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,PAR,ZN ; X-RAY DIFFRACTION 3.4492Å

e4x64D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,PAR,ZN ; X-RAY DIFFRACTION 3.350Å

e4x65D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,PAR,ZN ; X-RAY DIFFRACTION 3.3448Å

e4x66D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,PAR,ZN ; X-RAY DIFFRACTION 3.4459Å

e5br8D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

30S ribosomal protein S4 ; ligands: MG,PAR,ZN ; X-RAY DIFFRACTION 3.4Å

e5dox1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.100Å

e5dox2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 3.100Å

e5doy1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.600Å

e5doy2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.600Å

e3jcdd1[d:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e3jced1[d:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5e7k3E1[3E:3-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.200Å

e5e7k321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.200Å

e5e813E1[3E:3-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.950Å

e5e81321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.950Å

e5el43E1[3E:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.150Å

e5el4321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.150Å

e5el53E1[3E:3-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.150Å

e5el5321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.150Å

e5el63E1[3E:3-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.100Å

e5el6321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.100Å

e5el73E1[3E:3-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.050Å

e5el7321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 3.050Å

e5fdu1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: A,MG,SF4 ; X-RAY DIFFRACTION 2.900Å

e5fdu2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: A,MG,SF4 ; X-RAY DIFFRACTION 2.900Å

e5fdv1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: A,MG,SF4 ; X-RAY DIFFRACTION 2.800Å

e5fdv2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: A,MG,SF4 ; X-RAY DIFFRACTION 2.800Å

e3jbuD1[D:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e3jbvD1[D:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5f8k1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.800Å

e5f8k2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.800Å

e3jcjl1[l:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e3jcng1[g:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5hau1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.000Å

e5hau2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.000Å

e5hcp1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.890Å

e5hcp2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.890Å

e5hcq1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.800Å

e5hcq2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.800Å

e5hcr1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.800Å

e5hcr2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.800Å

e5hd11d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.700Å

e5hd12d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.700Å

e5iwaD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.50Å

e5j4b1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.600Å

e5j4b2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.600Å

e5j4c1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.800Å

e5j4c2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.800Å

e5iqri1[i:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5imqH1[H:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5imrH1[H:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5j4dMA1[MA:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG ; X-RAY DIFFRACTION 3.1Å

e5j4dRC1[RC:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG ; X-RAY DIFFRACTION 3.1Å

e5ib73E1[3E:3-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.990Å

e5ib83E1[3E:3-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.130Å

e5ibb3E1[3E:3-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.960Å

e5ib7321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.990Å

e5ib8321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 3.130Å

e5ibb321[32:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.960Å

e5j8bd1[d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.590Å

e4wt8AD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; X-RAY DIFFRACTION 3.400Å

e4wt8BD1[BD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; X-RAY DIFFRACTION 3.400Å

e4yy3D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.600Å

e5j88AD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.316Å

e5j88BD1[BD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.316Å

e5j8aAD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.1Å

e5j8aBD1[BD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.1Å

e5j91AD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.96Å

e5j91BD1[BD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.96Å

e5jc9AD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.03Å

e5jc9BD1[BD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.03Å

e5jteAD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5ju8AD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5l3pd1[d:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5it8AD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.117Å

e5it8BD1[BD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.117Å

e5j5bAD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.8Å

e5j5bBD1[BD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.8Å

e5j7lAD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.999Å

e5j7lBD1[BD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.999Å

e4zsnQD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.6Å

e4zsnXD1[XD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.6Å

e5kps91[9:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5kpv81[8:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5kpw81[8:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5kpx81[8:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e5lmnD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; ELECTRON MICROSCOPY

e5lmoD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: A,G,U,ZN ; ELECTRON MICROSCOPY

e5lmpD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; ELECTRON MICROSCOPY

e5lmqD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; ELECTRON MICROSCOPY

e5lmrD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; ELECTRON MICROSCOPY

e5lmsD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; ELECTRON MICROSCOPY

e5lmtD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; ELECTRON MICROSCOPY

e5lmuD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; ELECTRON MICROSCOPY

e5lmvD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; ELECTRON MICROSCOPY

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e4v6iAC1[AC:1-197] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

40S ribosomal protein rpS9 (S4p) ; ELECTRON MICROSCOPY

F: Unmapped domains

Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.

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