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
Refs: Structure 14, 1489-1498; Current opinion in structural biology 18, 358-365
Representatives:
e2j01V1[V:1-101] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB
e5jvgO1[O:2-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.350Å
e5jvhO1[O:5-98] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.580Å
e5lzaR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5lzbR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5lzcR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5lzdR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5lzeR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5lzfR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5mdvR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5mdwR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5mdzR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5mgpR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5mdyR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5hl7O1[O:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MN ; X-RAY DIFFRACTION 3.550Å
e5li0U1[U:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5u4iS1[S:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5h5uS1[S:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5u9f201[20:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5u9g201[20:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5hkvO1[O:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.64Å
e5ncoS1[S:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5tcuL41[L4:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5uyk201[20:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5uym201[20:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5uyn201[20:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5uyp201[20:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5uyq201[20:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5t7vL41[L4:1-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5njtk1[k:2-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5np6p1[p:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5uyl201[20:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5vp21V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.800Å
e5vp22V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.800Å
e5nd8U1[U:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5nd9U1[U:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5o60S1[S:3-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5o61S1[S:3-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5nwye1[e:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5o2rR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5nrgO1[O:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 3.442Å
e5w4k1V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.700Å
e5w4k2V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.700Å
e5v7qR1[R:5-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
LSU ribosomal protein L21p ; ELECTRON MICROSCOPY
e5v93R1[R:5-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
LSU ribosomal protein L21p ; ELECTRON MICROSCOPY
e5ng8AP1[AP:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH
e5ng8BP1[BP:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH
e5ngmAP1[AP:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5xymR1[R:3-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5myjBU1[BU:4-104] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6cae1V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.600Å
e6eriAR1[AR:72-236] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21, chloroplastic ; ELECTRON MICROSCOPY
e5wdtR1[R:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG,PHE ; ELECTRON MICROSCOPY
e5we4R1[R:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG,PHE ; ELECTRON MICROSCOPY
e5we6R1[R:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6cae2V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.600Å
e5wf0R1[R:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5ndjD81[D8:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.150Å
e5wfkR1[R:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5wfsR1[R:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG,PHE ; ELECTRON MICROSCOPY
e5ndj951[95:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 3.150Å
e6bohS1[S:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.4Å
e6enfR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6enjR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6enuR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6bu8201[20:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5ndkD81[D8:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.950Å
e5ndk951[95:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 2.950Å
e6b4vS1[S:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.4Å
e5ot7w1[w:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; ELECTRON MICROSCOPY
e6b4vWB1[WB:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.4Å
e5wis1V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.700Å
e5wis2V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.700Å
e5wit1V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.600Å
e5wit2V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.600Å
e6c5lBV1[BV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.2Å
e6c5lDV1[DV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.2Å
e6c4iS1[S:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5uq7V1[V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5uq8V1[V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6cfj1V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.800Å
e6cfj2V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.800Å
e6cfk1V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: ARG,MG ; X-RAY DIFFRACTION 2.700Å
e6cfk2V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: ARG,MG ; X-RAY DIFFRACTION 2.700Å
e6cfl1V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: ARG,MG ; X-RAY DIFFRACTION 2.600Å
e6cfl2V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: ARG,MG ; X-RAY DIFFRACTION 2.600Å
e5v8i1V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L21 ; ligands: ARG,MG ; X-RAY DIFFRACTION 3.250Å
e6fxcAP1[AP:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6fxcBP1[BP:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6fkr1V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.200Å
e6fkr2V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.200Å
e5v8i2V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L21 ; ligands: ARG,MG ; X-RAY DIFFRACTION 3.250Å
e6bohXB1[XB:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.4Å
e6bokS1[S:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.55Å
e6bokVB1[VB:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.55Å
e6ha1R1[R:2-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gbzR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6dncV1[V:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gwtR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gxmR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6h4nR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gslD81[D8:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 3.160Å
e5zluo1[o:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5vpoRV1[RV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.2Å
e5zebS1[S:2-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6dzpS1[S:3-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gc0R1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gc4R1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gc6R1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gc7R1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gc8R1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gxnR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gxoR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gxpR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6h58R1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6h58RR1[RR:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gsjD81[D8:1-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.960Å
e6gsj951[95:1-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.960Å
e6gskD81[D8:1-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.360Å
e6gsk951[95:1-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 3.360Å
e6gsl951[95:1-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 3.160Å
e6ha8R1[R:2-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5vpoYV1[YV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 3.2Å
e5vppRV1[RV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.7Å
e5vppYV1[YV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 3.7Å
e6dziS1[S:3-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5zepS1[S:2-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e5zetS1[S:2-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6hmaP1[P:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gzqQ11[Q1:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6buwRV1[RV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 3.500Å
e6buwYV1[YV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.500Å
e6bz6RV1[RV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.180Å
e6bz6YV1[YV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 3.180Å
e6bz7RV1[RV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.640Å
e6bz7YV1[YV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.640Å
e6bz8RV1[RV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.610Å
e6bz8YV1[YV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.610Å
e6gzxQ11[Q1:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gzxQ21[Q2:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gzzQ11[Q1:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6gzzQ21[Q2:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6i0yR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG,TRP ; ELECTRON MICROSCOPY
e6i7vCS1[CS:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 2.800Å
e6i7vDS1[DS:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: EDO,PG4,PGE ; X-RAY DIFFRACTION 2.800Å
e6hrmR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6n9e1V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S Ribosomal Protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.700Å
e6n9e2V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S Ribosomal Protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.700Å
e6n9f1V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S Ribosomal Protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.700Å
e6n9f2V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S Ribosomal Protein L21 ; X-RAY DIFFRACTION 3.700Å
e6nd61V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.850Å
e6q98R1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6nd62V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.850Å
e6q95R1[R:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; ELECTRON MICROSCOPY
e6by1CR1[CR:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.940Å
e6ndkRV1[RV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.640Å
e6ndkYV1[YV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.640Å
e6by1DR1[DR:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 3.940Å
e6q97R1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6dddD1[D:1-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6ddgD1[D:1-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6nd51V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.600Å
e6nd52V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.600Å
e6n1dAL211[AL21:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.2Å
e6n1dBL211[BL21:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.2Å
e6qulS1[S:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6czr1V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATHDOI
50S ribosomal protein L21 ; ligands: ARG,MG ; X-RAY DIFFRACTION 3.1400Å
e6q9aR1[R:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6czr2V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATHDOI
50S ribosomal protein L21 ; ligands: ARG,MG ; X-RAY DIFFRACTION 3.1400Å
e6nu2S1[S:49-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L21, mitochondrial ; ELECTRON MICROSCOPY
e6nu3S1[S:49-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
39S ribosomal protein L21, mitochondrial ; ELECTRON MICROSCOPY
e6o971V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.750Å
e6o972V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.750Å
e6of11V1[1V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.800Å
e6of12V1[2V:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 2.800Å
e6o9jR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6o9kR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6oreR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6orlR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; ELECTRON MICROSCOPY
e6ostR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6ot3R1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6ouoR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6qnq951[95:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 4.85Å
e6qnrD81[D8:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 4.00Å
e6qnr951[95:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; X-RAY DIFFRACTION 4.00Å
e6oskR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6osqR1[R:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6qnqD81[D8:1-100] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 4.85Å
e6s0xP1[P:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6s0zP1[P:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6s12P1[P:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6s13P1[P:1-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6otrRV1[RV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.120Å
e6ppfR1[R:2-102] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6u48CS1[CS:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein bL21 ; ELECTRON MICROSCOPY
e6ofxr1[r:1-103] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6ppkR1[R:2-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6pvkR1[R:2-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ELECTRON MICROSCOPY
e6otrYV1[YV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.120Å
e6oxaRV1[RV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.200Å
e6oxaYV1[YV:1-101] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L21 ; ligands: MG ; X-RAY DIFFRACTION 3.200Å
Previous Nextbeta 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