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
looks like an elaborated ferredoxin
contains a HTH motif
Representatives:
e4v8pAP1[AP:2-77] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPL38 ; X-RAY DIFFRACTION 3.52Å
e8eugk1[k:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38-1 ; ELECTRON MICROSCOPY
e8euik1[k:2-71] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38-1 ; ELECTRON MICROSCOPY
e7qggl1[l:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e7tm3k1[k:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
eL38 ; ELECTRON MICROSCOPY
e7tutk1[k:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
eL38 ; ELECTRON MICROSCOPY
e7zjwLn1[Ln:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein eL38 ; ELECTRON MICROSCOPY
e8bqdAI1[AI:2-78] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPL38 isoform 1 ; ELECTRON MICROSCOPY
e8bqxAI1[AI:2-78] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPL38 isoform 1 ; ELECTRON MICROSCOPY
e8hfrkr1[kr:2-78] Image Pymol Jmol Links: PDB, SCOP, CATH
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e7uook1[k:2-78] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e7uqbk1[k:2-78] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e7uqzk1[k:2-78] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e7v08k1[k:2-78] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
RPL38 isoform 1 ; ELECTRON MICROSCOPY
e8i9xLk1[Lk:2-76] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38-like protein ; ELECTRON MICROSCOPY
e8i9yLk1[Lk:2-76] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38-like protein ; ELECTRON MICROSCOPY
e8i9zLk1[Lk:2-76] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38-like protein ; ELECTRON MICROSCOPY
e8ia0Lk1[Lk:2-76] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38-like protein ; ELECTRON MICROSCOPY
e7z3nLk1[Lk:2-81] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
eL38 ; ELECTRON MICROSCOPY
e7z3oLk1[Lk:2-81] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
eL38 ; ELECTRON MICROSCOPY
e8btkBk1[Bk:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
eL38 ; ELECTRON MICROSCOPY
e8g5yLk1[Lk:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e8g5zLk1[Lk:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e8g60Lk1[Lk:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
eL38 ; ELECTRON MICROSCOPY
e8g61Lk1[Lk:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e8g6jLk1[Lk:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e8glpLk1[Lk:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e7xnxLk1[Lk:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e7xnyLk1[Lk:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e8br8Ll1[Ll:2-73] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal L38e ; ELECTRON MICROSCOPY
e8brmLl1[Ll:2-73] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L38e ; ELECTRON MICROSCOPY
e8bsiLl1[Ll:2-73] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal L38e ; ELECTRON MICROSCOPY
e8bsjLl1[Ll:2-73] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal L38e ; ELECTRON MICROSCOPY
e8btdLl1[Ll:2-73] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L38e ; ELECTRON MICROSCOPY
e8btrLl1[Ll:2-73] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Ribosomal protein L38e ; ELECTRON MICROSCOPY
e8eubAk1[Ak:2-78] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8ccsW1[W:2-78] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e8q5iAL1[AL:2-78] Image Pymol Jmol Links: PDB, SCOP, CATHDOI
; ELECTRON MICROSCOPY
e8azwW1[W:2-69] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8b2lW31[W3:2-69] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e8a98k1[k:2-74] Image Pymol Jmol Links: PDB, SCOP, CATH
Putative ribosomal protein L38 ; ELECTRON MICROSCOPY
e8bpoj21[j2:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8fkzLY1[LY:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8p2kBk1[Bk:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
60S ribosomal protein L38 ; ELECTRON MICROSCOPY
e8idtO1[O:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
e8bhfX11[X1:2-70] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
; ELECTRON MICROSCOPY
Previousa+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