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X - Possible homology level

H - Homology level

T - Topology level

F - Family level

* - Provisional representative

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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

X: Immunoglobulin-like beta-sandwich
H: Immunoglobulin-related
T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like
F: TcA_RBD

PF18518 CL0159

Representatives:

e4o9yA4[A:1633-1761] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yB4[B:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yC2[C:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yD1[D:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yE4[E:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yF1[F:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yG6[G:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yH6[H:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yI7[I:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yJ4[J:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e6h6fA4[A:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6fB2[B:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6fC7[C:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6fD6[D:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6fE3[E:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6rw9A5[A:1595-1735] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein TcdA4 ; ELECTRON MICROSCOPY

e6rw9B5[B:1595-1735] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein TcdA4 ; ELECTRON MICROSCOPY

e6rw9C5[C:1595-1735] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein TcdA4 ; ELECTRON MICROSCOPY

e6rw9D5[D:1595-1735] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein TcdA4 ; ELECTRON MICROSCOPY

e6rw9E5[E:1595-1735] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein TcdA4 ; ELECTRON MICROSCOPY

e6rw6A7[A:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6rw6B5[B:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6rw6C7[C:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6rw6D6[D:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6rw6E6[E:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6rwaA7[A:1503-1632] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA4 ; ELECTRON MICROSCOPY

e6rwaB7[B:1503-1632] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA4 ; ELECTRON MICROSCOPY

e6rwaC7[C:1503-1632] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA4 ; ELECTRON MICROSCOPY

e6rwaD7[D:1503-1632] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA4 ; ELECTRON MICROSCOPY

e6rwaE7[E:1503-1632] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA4 ; ELECTRON MICROSCOPY

e6h6eA7[A:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6eB7[B:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6eC6[C:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6eD7[D:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6eE7[E:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e5lkiB4[B:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e5lkiC4[C:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e5lkiA5[A:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e5lkiD5[D:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e5lkiE5[E:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6l7eA2[A:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH

TcdA1 ; ELECTRON MICROSCOPY

e6l7eB6[B:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH

TcdA1 ; ELECTRON MICROSCOPY

e6l7eC1[C:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH

TcdA1 ; ELECTRON MICROSCOPY

e6l7eD8[D:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH

TcdA1 ; ELECTRON MICROSCOPY

e6l7eE6[E:1633-1761] Image Pymol Jmol Links: PDB, SCOP, CATH

TcdA1 ; ELECTRON MICROSCOPY

e6rw8A5[A:1636-1780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

A component of insecticidal toxin complex (Tc) ; ELECTRON MICROSCOPY

e6rw8B5[B:1636-1780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

A component of insecticidal toxin complex (Tc) ; ELECTRON MICROSCOPY

e6rw8C5[C:1636-1780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

A component of insecticidal toxin complex (Tc) ; ELECTRON MICROSCOPY

e6rw8D5[D:1636-1780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

A component of insecticidal toxin complex (Tc) ; ELECTRON MICROSCOPY

e6rw8E5[E:1636-1780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

A component of insecticidal toxin complex (Tc) ; ELECTRON MICROSCOPY

e6yewA5[A:1595-1735] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein ; ELECTRON MICROSCOPY

e6yewB5[B:1595-1735] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein ; ELECTRON MICROSCOPY

e6yewC5[C:1595-1735] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein ; ELECTRON MICROSCOPY

e6yewD5[D:1595-1735] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein ; ELECTRON MICROSCOPY

e6yewE5[E:1595-1735] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein ; ELECTRON MICROSCOPY

e6yeyA5[A:1636-1780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

A component of insecticidal toxin complex (Tc) ; ELECTRON MICROSCOPY

e6yeyB5[B:1636-1780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

A component of insecticidal toxin complex (Tc) ; ELECTRON MICROSCOPY

e6yeyC5[C:1636-1780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

A component of insecticidal toxin complex (Tc) ; ELECTRON MICROSCOPY

e6yeyD5[D:1636-1780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

A component of insecticidal toxin complex (Tc) ; ELECTRON MICROSCOPY

e6yeyE5[E:1636-1780] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

A component of insecticidal toxin complex (Tc) ; ELECTRON MICROSCOPY

F: Unmapped domains

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

X: Glycosyl hydrolase domain-like

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