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
Representatives:
e5tdqA1[A:367-445,A:476-526] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Golgi resident protein GCP60 ; X-RAY DIFFRACTION 2.4930Å
e5lz1A1[A:364-445,A:476-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Golgi resident protein GCP60 ; X-RAY DIFFRACTION 2.00Å
e5lz3A1[A:368-436,A:474-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Golgi resident protein GCP60 ; X-RAY DIFFRACTION 3.0Å
e5lz6A1[A:366-436,A:474-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Golgi resident protein GCP60 ; ligands: BGC ; X-RAY DIFFRACTION 2.6Å
e6hlnA1[A:363-436,A:476-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Golgi resident protein GCP60 ; X-RAY DIFFRACTION 2.1Å
e6hltA1[A:366-436,A:474-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Golgi resident protein GCP60 ; X-RAY DIFFRACTION 2.815Å
e6hltC1[C:366-436,C:474-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Golgi resident protein GCP60 ; X-RAY DIFFRACTION 2.815Å
e6hlvA1[A:365-436,A:474-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Golgi resident protein GCP60 ; X-RAY DIFFRACTION 2.5Å
e6hlwA1[A:368-436,A:474-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Golgi resident protein GCP60 ; X-RAY DIFFRACTION 2.728Å
e6hlwC1[C:369-436,C:476-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Golgi resident protein GCP60 ; X-RAY DIFFRACTION 2.728Å
e6hm8A1[A:365-436,A:476-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Golgi resident protein GCP60 ; X-RAY DIFFRACTION 2.277Å
e6hmvA1[A:367-436,A:474-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Golgi resident protein GCP60 ; X-RAY DIFFRACTION 2.244Å
e6q67A1[A:367-436,A:475-529] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Peripherial benzodiazepine receptor associated protein ; ligands: BGC ; X-RAY DIFFRACTION 2.249Å
e6q68A1[A:368-436,A:474-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Acyl-CoA binding domain containing 3 ; ligands: BGC ; X-RAY DIFFRACTION 3.161Å
e6q68C1[C:368-436,C:474-528] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Acyl-CoA binding domain containing 3 ; X-RAY DIFFRACTION 3.161Å
e6q69A1[A:365-436,A:477-529] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Peripherial benzodiazepine receptor associated protein ; X-RAY DIFFRACTION 2.747Å
e6q69C1[C:366-436,C:475-529] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Peripherial benzodiazepine receptor associated protein ; X-RAY DIFFRACTION 2.747Å
Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
some similarity with Ig fold
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