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:
e1el6A1[A:83-186]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
BASEPLATE STRUCTURAL PROTEIN GP11 ; X-RAY DIFFRACTION 2.0Å
e1el6C1[C:82-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
BASEPLATE STRUCTURAL PROTEIN GP11 ; X-RAY DIFFRACTION 2.0Å
e1el6B1[B:82-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
BASEPLATE STRUCTURAL PROTEIN GP11 ; X-RAY DIFFRACTION 2.0Å
e1tjaF1[F:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1tjaG1[G:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1tjaH1[H:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfA1[A:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfB1[B:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfC1[C:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfD1[D:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfE1[E:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfF1[F:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfG1[G:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfH1[H:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfI1[I:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfJ1[J:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfK1[K:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfL1[L:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfM1[M:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfN1[N:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfO1[O:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfP1[P:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfQ1[Q:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e1pdfR1[R:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate structural protein Gp11 ; ELECTRON MICROSCOPY
e5iv5L1[L:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5M1[M:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5N1[N:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5i1[i:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5j1[j:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5k1[k:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5AF2[AF:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5AG2[AG:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5AH2[AH:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5CI2[CI:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5CJ1[CJ:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5DA1[DA:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5FB1[FB:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5FC1[FC:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5FD1[FD:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5HE2[HE:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5HF2[HF:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv5HG1[HG:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7L1[L:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7M2[M:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7N2[N:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7b2[b:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7c1[c:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7d1[d:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7r2[r:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7s2[s:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7t1[t:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7BA1[BA:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7BB1[BB:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7BC2[BC:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7DC2[DC:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7DD2[DD:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7DE1[DE:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7FE1[FE:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7FF1[FF:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY
e5iv7FG1[FG:82-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Baseplate wedge protein gp11 ; ELECTRON MICROSCOPY

Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
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