Evolutionary classification of protein domain structures
alpha arraysalpha-helix arrays with mainly perpendicular helices
alpha bundlesalpha-helix bundles with mainly parallel helices
Representatives:
e1vcsA1[A:8-96] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH
Vesicle transport through interaction with t-SNAREs homolog 1A ; SOLUTION NMR
e3onjA1[A:3-99] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
T-SNARE VTI1 ; X-RAY DIFFRACTION 1.92Å
e2qywA1[A:1-96] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
VESICLE TRANSPORT THROUGH INTERACTION WITH T-SNARES 1B HOMOLOG ; X-RAY DIFFRACTION 2.0Å
e2v8sV1[V:2-94] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
VESICLE TRANSPORT THROUGH INTERACTION WITH T-SNARES HOMOLOG 1B ; ligands: GOL ; X-RAY DIFFRACTION 2.22Å
e3onlC1[C:3-97] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
T-SNARE VTI1 ; X-RAY DIFFRACTION 2.2Å
e7xadC1[C:4-99] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DBL2_02 binder ; X-RAY DIFFRACTION 3.00Å
e7xadE1[E:4-99] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DBL2_02 binder ; X-RAY DIFFRACTION 3.00Å
e7xadG1[G:4-96] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DBL2_02 binder ; X-RAY DIFFRACTION 3.00Å
e7xadI1[I:4-92] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DBL2_02 binder ; X-RAY DIFFRACTION 3.00Å
Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
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