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
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
Representatives:
e1j3aA1[A:1-142] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH
50S RIBOSOMAL PROTEIN L13P ; X-RAY DIFFRACTION 1.6Å
e3j9zLF1[LF:1-142] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e4y4o2N1[2N:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; X-RAY DIFFRACTION 2.300Å
e4y4p1N1[1N:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; X-RAY DIFFRACTION 2.500Å
e4y4p2N1[2N:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; X-RAY DIFFRACTION 2.500Å
e4ybbDK1[DK:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG,MPD ; X-RAY DIFFRACTION 2.000Å
e3jcjI1[I:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e3jcnJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e5lzaJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e5lzbJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e5lzcJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e5lzdJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; ELECTRON MICROSCOPY
e5lzeJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e5lzfJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7n1pLM1[LM:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; ELECTRON MICROSCOPY
e7opeN1[N:4-145] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7k50j1[j:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7nspJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7a0rG1[G:30-172] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; X-RAY DIFFRACTION 3.300Å
e7abzJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7o19BJ1[BJ:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7a0sG1[G:30-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; X-RAY DIFFRACTION 3.210Å
e7ac7J1[J:2-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7acjJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7acrJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; ELECTRON MICROSCOPY
e7k51j1[j:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7k52j1[j:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7k53j1[j:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7k54j1[j:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7k55j1[j:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7lv0j1[j:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7n2cLM1[LM:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7n2uLM1[LM:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7n2vLM1[LM:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; ELECTRON MICROSCOPY
e7n30LM1[LM:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; ELECTRON MICROSCOPY
e7n31LM1[LM:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; ELECTRON MICROSCOPY
e7nsoJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7nsqJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7o1aBJ1[BJ:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7o1cBJ1[BJ:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7oizi1[i:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG,TRP ; ELECTRON MICROSCOPY
e7oj0i1[i:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG,TRP ; ELECTRON MICROSCOPY
e7a18G1[G:30-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; X-RAY DIFFRACTION 3.300Å
e7asmH1[H:1-145] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7asnH1[H:1-145] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7asoM1[M:1-145] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7aspH1[H:1-145] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7cpjJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7lvkR1[R:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH
50S ribosomal protein L13 ; ligands: MG ; ELECTRON MICROSCOPY
e7nwtJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATHDOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7p3ki1[i:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; ELECTRON MICROSCOPY
e7pjsJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATHDOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7pjtJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7pjuJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7pjvJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7pjwJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7pjxJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7pjyJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7pjzJ1[J:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7rq81N1[1N:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; X-RAY DIFFRACTION 2.500Å
e7rq82N1[2N:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; X-RAY DIFFRACTION 2.500Å
e7rq91N1[1N:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; X-RAY DIFFRACTION 2.600Å
e7rq92N1[2N:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ligands: MG ; X-RAY DIFFRACTION 2.600Å
e7s1gR1[R:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e7s1hR1[R:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
50S ribosomal protein L13 ; ELECTRON MICROSCOPY
e4v19N1[N:2-178] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
MITORIBOSOMAL PROTEIN UL13M, MRPL13 ; ELECTRON MICROSCOPY
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