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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

X: TcA alpha-helical shell domain
H: TcA alpha-helical shell domain
T: TcA alpha-helical shell domain
F: VRP1,ABC_toxin_N

PF03538 PF20220

Representatives:

e4o9yA7[A:14-297,A:434-1090,A:1608-1632,A:1762-1972] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yB7[B:14-297,B:434-1090,B:1608-1632,B:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yC7[C:14-297,C:434-1090,C:1608-1632,C:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yD4[D:14-297,D:434-1090,D:1608-1632,D:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yE6[E:14-297,E:434-1090,E:1608-1632,E:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yF3[F:14-297,F:434-1090,F:1608-1632,F:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yG5[G:14-297,G:434-1090,G:1608-1632,G:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yH8[H:14-297,H:434-1090,H:1608-1632,H:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yI5[I:14-297,I:434-1090,I:1608-1632,I:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e4o9yJ6[J:14-297,J:434-1090,J:1608-1632,J:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; X-RAY DIFFRACTION 3.5020Å

e6h6fA8[A:41-297,A:434-1090,A:1608-1632,A:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6fB3[B:41-297,B:434-1090,B:1608-1632,B:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6fC2[C:41-297,C:434-1090,C:1608-1632,C:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6fD8[D:41-297,D:434-1090,D:1608-1632,D:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6fE8[E:41-297,E:434-1090,E:1608-1632,E:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6rw6A4[A:21-297,A:434-1090,A:1608-1632,A:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6rw6B3[B:21-297,B:434-1090,B:1608-1632,B:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6rw6C6[C:21-297,C:434-1090,C:1608-1632,C:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6rw6D3[D:21-297,D:434-1090,D:1608-1632,D:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6rw6E4[E:21-297,E:434-1090,E:1608-1632,E:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6rw9A2[A:21-80,A:100-297,A:446-1066,A:1736-1937] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein TcdA4 ; ELECTRON MICROSCOPY

e6rw9B2[B:21-80,B:100-297,B:446-1066,B:1736-1937] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein TcdA4 ; ELECTRON MICROSCOPY

e6rw9C2[C:21-80,C:100-297,C:446-1066,C:1736-1937] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein TcdA4 ; ELECTRON MICROSCOPY

e6rw9D2[D:21-80,D:100-297,D:446-1066,D:1736-1937] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein TcdA4 ; ELECTRON MICROSCOPY

e6rw9E2[E:21-80,E:100-297,E:446-1066,E:1736-1937] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein TcdA4 ; ELECTRON MICROSCOPY

e6rwaA1[A:21-963,A:1478-1502,A:1633-1842] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA4 ; ELECTRON MICROSCOPY

e6rwaB1[B:21-963,B:1478-1502,B:1633-1842] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA4 ; ELECTRON MICROSCOPY

e6rwaC1[C:21-963,C:1478-1502,C:1633-1842] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA4 ; ELECTRON MICROSCOPY

e6rwaD1[D:21-963,D:1478-1502,D:1633-1842] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA4 ; ELECTRON MICROSCOPY

e6rwaE1[E:21-963,E:1478-1502,E:1633-1842] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA4 ; ELECTRON MICROSCOPY

e6h6eA8[A:70-297,A:434-1090,A:1608-1632,A:1762-1922,A:1943-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6eB6[B:70-297,B:434-1090,B:1608-1632,B:1762-1922,B:1943-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6eC1[C:70-297,C:434-1090,C:1608-1632,C:1762-1922,C:1943-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6eD1[D:70-297,D:434-1090,D:1608-1632,D:1762-1922,D:1943-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6h6eE6[E:70-297,E:434-1090,E:1608-1632,E:1762-1922,E:1943-1972] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e5lkiB5[B:90-216,B:899-1039,B:1896-1913,B:1947-1956] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e5lkiC5[C:90-216,C:903-1039,C:1895-1913,C:1947-1956] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e5lkiA3[A:90-216,A:890-1041,A:1898-1913,A:1947-1956] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e5lkiD3[D:90-216,D:890-1041,D:1898-1913,D:1947-1956] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e5lkiE3[E:90-216,E:890-1041,E:1898-1913,E:1947-1956] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TcdA1 ; ELECTRON MICROSCOPY

e6l7eA7[A:42-297,A:434-1090,A:1608-1632,A:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH

TcdA1 ; ELECTRON MICROSCOPY

e6l7eB8[B:42-297,B:434-1090,B:1608-1632,B:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH

TcdA1 ; ELECTRON MICROSCOPY

e6l7eC3[C:42-297,C:434-1090,C:1608-1632,C:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH

TcdA1 ; ELECTRON MICROSCOPY

e6l7eD6[D:42-297,D:434-1090,D:1608-1632,D:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH

TcdA1 ; ELECTRON MICROSCOPY

e6l7eE2[E:42-297,E:434-1090,E:1608-1632,E:1762-1972] Image Pymol Jmol Links: PDB, SCOP, CATH

TcdA1 ; ELECTRON MICROSCOPY

e6rw8A1[A:20-297,A:441-1078,A:1155-1157,A:1614-1635,A:1781-1988] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e6rw8B1[B:20-297,B:441-1078,B:1155-1157,B:1614-1635,B:1781-1988] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e6rw8C1[C:20-297,C:441-1078,C:1155-1157,C:1614-1635,C:1781-1988] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e6rw8D1[D:20-297,D:441-1078,D:1155-1157,D:1614-1635,D:1781-1988] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e6rw8E1[E:20-297,E:441-1078,E:1155-1157,E:1614-1635,E:1781-1988] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e6yewA1[A:21-80,A:100-314,A:446-1065,A:1571-1594,A:1736-1937] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein ; ELECTRON MICROSCOPY

e6yewB1[B:21-80,B:100-314,B:446-1065,B:1571-1594,B:1736-1937] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein ; ELECTRON MICROSCOPY

e6yewC1[C:21-80,C:100-314,C:446-1065,C:1571-1594,C:1736-1937] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein ; ELECTRON MICROSCOPY

e6yewD1[D:21-80,D:100-314,D:446-1065,D:1571-1594,D:1736-1937] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein ; ELECTRON MICROSCOPY

e6yewE1[E:21-80,E:100-314,E:446-1065,E:1571-1594,E:1736-1937] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Insecticidal toxin protein ; ELECTRON MICROSCOPY

e6yeyA1[A:20-297,A:441-1078,A:1155-1157,A:1614-1635,A:1781-1988] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e6yeyB1[B:20-297,B:441-1078,B:1155-1157,B:1614-1635,B:1781-1988] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e6yeyC1[C:20-297,C:441-1078,C:1155-1157,C:1614-1635,C:1781-1988] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e6yeyD1[D:20-297,D:441-1078,D:1155-1157,D:1614-1635,D:1781-1988] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e6yeyE1[E:20-297,E:441-1078,E:1155-1157,E:1614-1635,E:1781-1988] 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.

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