Evolutionary classification of protein domain structures
alpha arraysalpha-helix arrays with mainly perpendicular helices




Representatives:
e3hjlA2[A:102-195]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
Flagellar motor switch protein fliG ; X-RAY DIFFRACTION 2.4Å
e1lkvX2[X:115-194]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
FLAGELLAR MOTOR SWITCH PROTEIN FLIG ; ligands: CA ; X-RAY DIFFRACTION 2.798Å
e3sohB1[B:113-193] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 3.5Å
e4fq0C1[C:117-196] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein ; X-RAY DIFFRACTION 2.8Å
e3sohD1[D:113-193] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 3.5Å
e4fq0D1[D:117-196] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein ; X-RAY DIFFRACTION 2.8Å
e3usyA4[A:110-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
FLAGELLAR MOTOR SWITCH PROTEIN ; X-RAY DIFFRACTION 2.71Å
e3usyB4[B:110-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
FLAGELLAR MOTOR SWITCH PROTEIN ; X-RAY DIFFRACTION 2.71Å
e4fhrB3[B:113-194] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
FLAGELLAR MOTOR SWITCH PROTEIN FLIG ; X-RAY DIFFRACTION 1.93Å
e3ajcA3[A:105-194] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein fliG ; X-RAY DIFFRACTION 2.3Å
e3uswA3[A:117-204] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
FLAGELLAR MOTOR SWITCH PROTEIN ; X-RAY DIFFRACTION 2.6Å
e4qrmB1[B:114-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 4.3Å
e4qrmD1[D:113-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 4.3Å
e4qrmF1[F:113-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 4.3Å
e4qrmH1[H:113-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 4.3Å
e4qrmJ1[J:113-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 4.3Å
e4qrmL1[L:113-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 4.3Å
e4qrmN1[N:113-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 4.3Å
e4qrmP1[P:113-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 4.3Å
e4qrmR1[R:113-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 4.3Å
e4qrmT1[T:113-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 4.3Å
e4qrmV1[V:113-187] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Flagellar motor switch protein FliG ; X-RAY DIFFRACTION 4.3Å
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
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