Evolutionary classification of protein domain structures
alpha arraysalpha-helix arrays with mainly perpendicular helices
Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
Representatives:
e3frhA1[A:1-54] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
16S RRNA METHYLASE ; ligands: SAH ; X-RAY DIFFRACTION 1.2Å
e6pi9A2[A:0-56] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH
16S rRNA (guanine(1405)-N(7))-methyltransferase ; ligands: SAH ; X-RAY DIFFRACTION 1.85Å
e5vmrC1[C:2-39] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Bot.2110.4 ; X-RAY DIFFRACTION 1.95Å
e1xb2B1[B:56-111] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ELONGATION FACTOR TS, MITOCHONDRIAL ; X-RAY DIFFRACTION 2.2Å
e1efuB1[B:1-54] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ELONGATION FACTOR TS ; X-RAY DIFFRACTION 2.5Å
e3b89A2[A:2-52] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH
16S rRNA methylase ; X-RAY DIFFRACTION 2.6Å
e5vidF1[F:1-40] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Bot.0671.2 ; X-RAY DIFFRACTION 2.75Å
e6cn0B1[B:1-56] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH
16S rRNA (guanine(1405)-N(7))-methyltransferase ; ligands: SO4 ; X-RAY DIFFRACTION 2.95Å
e4bkxA1[A:200-282] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
METASTASIS-ASSOCIATED PROTEIN MTA1 ; X-RAY DIFFRACTION 3.0Å
e4yxyA1[A:1-91] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
dTor_9x31L ; X-RAY DIFFRACTION 3.200Å
e6h3aB1[B:146-202] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A containing DEAD/H box 1 ; X-RAY DIFFRACTION 5.50Å
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