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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

e4v8aCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.90Å

e4v8aDD1[DD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.90Å

e4v8bAG1[AG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v8bCG1[CG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v8cCG1[CG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.300Å

e4v8cDG1[DG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.300Å

e4v8dAG1[AG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v8dCG1[CG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v8eDG1[DG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v8fBG1[BG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v8gAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v8gCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.000Å

e4v8iAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v8iCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v8jAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.9Å

e4v8jCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.9Å

e4v8nAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.10Å

e4v8nCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.10Å

e4v8oAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; X-RAY DIFFRACTION 3.80Å

e4v8qBD1[BD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.10Å

e4v8uCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v8xAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.35Å

e4v8xCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.35Å

e4v90AD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 2.95Å

e4v95AD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v97AD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9bAG1[AG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.100Å

e4v9bCG1[CG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.100Å

e4v9cAD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9dBD1[BD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9hAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.857Å

e4v9iCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9jCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9kAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.497Å

e4v9kCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.497Å

e4v9lAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9lCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9mAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.983Å

e4v9mCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.983Å

e4v9nAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9nCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9oBD1[BD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9oDD1[DD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9oFD1[FD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9oHD1[HD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9pBD1[BD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9pDD1[DD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9pFD1[FD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9qBD1[BD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9qDD1[DD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9rCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v9sCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e1vvjQD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.260Å

e1vvjXD1[XD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.260Å

e1vy4AD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e1vy5AD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.550Å

e1vy5CD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.550Å

e1vy6AD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e1vy6CD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e1vy7AD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4w2ed1[d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4w2gAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.550Å

e4w2gCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal Protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.550Å

e4w2hCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4w2iCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4wpoBD1[BD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4wpoDD1[DD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4wqfBD1[BD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.790Å

e4wqfDD1[DD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: SF4 ; X-RAY DIFFRACTION 2.790Å

e4wquBD1[BD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4wquDD1[DD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4wqyBD1[BD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4wqyDD1[DD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4wusD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4xejAS041[AS04:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: ZN ; X-RAY DIFFRACTION 3.8Å

e4xejBS041[BS04:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: ZN ; X-RAY DIFFRACTION 3.8Å

e1xnqD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.05Å

e1xnrD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

16S Ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.1Å

e4y4o1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ARG,MG,SF4 ; X-RAY DIFFRACTION 2.300Å

e4y4o2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ARG,SF4 ; X-RAY DIFFRACTION 2.300Å

e4y4p1d1[1d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.500Å

e4y4p2d1[2d:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,SF4 ; X-RAY DIFFRACTION 2.500Å

e4ybbBD1[BD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e2zm6D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

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

e4yhhD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4a2iD1[D:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ELECTRON MICROSCOPY

e4advD1[D:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ELECTRON MICROSCOPY

e5afid1[d:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4dr1D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.6Å

e4dr2D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,PAR,ZN ; X-RAY DIFFRACTION 3.25Å

e4dr3D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.35Å

e4dr7D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.75Å

e4duyD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.39Å

e4duzD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.65Å

e4dv2D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.65Å

e4dv3D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.55Å

e4dv4D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.65Å

e4dv6D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.3Å

e4dv7D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.29Å

e2f4vD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.8Å

e4gkkD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e1hnzD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.3Å

e1i94D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,WO2,ZN ; X-RAY DIFFRACTION 3.2Å

e4ji0D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.49Å

e4ji1D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.14Å

e4ji6D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.55Å

e4ji7D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.500Å

e4ji8D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.740Å

e4jv5D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.16Å

e4khpD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S Ribosomal protein S4 ; ligands: MG,PAR ; X-RAY DIFFRACTION 3.1Å

e4kvbD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.993Å

e4lf4D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.34Å

e4lf6D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,NMY,ZN ; X-RAY DIFFRACTION 3.31Å

e4lf7D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,PAR,ZN ; X-RAY DIFFRACTION 3.15Å

e4lf8D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,PAR,ZN ; X-RAY DIFFRACTION 3.15Å

e4lf9D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.28Å

e4lfbD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.01Å

e4lntQD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 2.870Å

e1ml5G1[G:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ELECTRON MICROSCOPY

e1n32D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.99Å

e1n36D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.64Å

e4nxmD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH

ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.65Å

e4p6fQD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4p70QD1[QD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.54Å

e3t1hD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.11Å

e3t1yD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 2.8Å

e4u1uAD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.950Å

e4u1uCD1[CD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 2.950Å

e4u1vAD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4u1vCD1[CD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4u20AD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4u20CD1[CD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4u24AD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4u24CD1[CD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4u25AD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4u25CD1[CD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4u26AD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4u26CD1[CD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4u27AD1[AD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4u27CD1[CD:2-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e2uu9D1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.10Å

e2uuaD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e2uubD1[D:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 2.800Å

e4v4hAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; X-RAY DIFFRACTION 3.460Å

e4v4hCD1[CD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; X-RAY DIFFRACTION 3.460Å

e4v4pBG1[BG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 5.50Å

e4v4qAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.46Å

e4v4qCD1[CD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.46Å

e4v4xAG1[AG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 5.000Å

e4v50CD1[CD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.22Å

e4v53AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.54Å

e4v53CD1[CD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.54Å

e4v5aCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.50Å

e4v5bBD1[BD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; X-RAY DIFFRACTION 3.74Å

e4v5bDD1[DD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; X-RAY DIFFRACTION 3.74Å

e4v5cCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.30Å

e4v5fAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.60Å

e4v5gAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.60Å

e4v5hAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ELECTRON MICROSCOPY

e4v5pAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.10Å

e4v5qAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.10Å

e4v5rAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.10Å

e4v5rCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.10Å

e4v5sAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S RIBOSOMAL PROTEIN S4 ; ligands: ZN ; X-RAY DIFFRACTION 3.10Å

e4v63CD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ligands: MG,ZN ; X-RAY DIFFRACTION 3.2Å

e4v64AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.50Å

e4v64CD1[CD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.50Å

e4v66AR1[AR:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v69AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v6aCD1[CD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v6cAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.19Å

e4v6cCD1[CD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.19Å

e4v6dAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.800Å

e4v6dCD1[CD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.800Å

e4v6eAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.700Å

e4v6eCD1[CD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; X-RAY DIFFRACTION 3.700Å

e4v6fBG1[BG:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e4v6mAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v6nBG1[BG:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v6oAG1[AG:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v6qAG1[AG:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v6sBF1[BF:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v6tAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v6vAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v6yAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v6zAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v70AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v71AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v72AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v73AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v74AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v75AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v77AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v78AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v79AD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v7aAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v7cAD1[AD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v7dBD1[BD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v7iBD1[BD:1-205] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

30S ribosomal protein S4 ; ELECTRON MICROSCOPY

e4v7mAD1[AD:2-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

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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