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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

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

X: Thioredoxin-like
H: Thioredoxin-like
T: Thioredoxin-like
F: Thioredoxin_2

PF13098 CL0172

Representatives:

e2fwhA1[A:428-544] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL:DISULFIDE INTERCHANGE PROTEIN DSBD ; ligands: IOD,PEG ; X-RAY DIFFRACTION 0.99Å

e1v58A2[A:62-230] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL:DISULFIDE INTERCHANGE PROTEIN DSBG ; ligands: SO4 ; X-RAY DIFFRACTION 1.7Å

e1a8lA1[A:1-119] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN DISULFIDE OXIDOREDUCTASE ; ligands: ZN ; X-RAY DIFFRACTION 1.9Å

e1eejA2[A:61-216] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL:DISULFIDE INTERCHANGE PROTEIN ; X-RAY DIFFRACTION 1.9Å

e6dxnA2[A:32-98,A:161-222] Image Pymol Jmol Links: PDB, SCOP, CATH

Thiol:disulfide interchange protein ; ligands: PGE ; X-RAY DIFFRACTION 1.95Å

e1t3bA2[A:61-210] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL:DISULFIDE INTERCHANGE PROTEIN DSBC ; X-RAY DIFFRACTION 2.5Å

e1g0tB2[B:61-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL:DISULFIDE INTERCHANGE PROTEIN DSBC ; X-RAY DIFFRACTION 2.6Å

e6dxnB2[B:32-98,B:161-222] Image Pymol Jmol Links: PDB, SCOP, CATH

Thiol:disulfide interchange protein ; ligands: PGE ; X-RAY DIFFRACTION 1.95Å

e1g0tA2[A:61-215] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL:DISULFIDE INTERCHANGE PROTEIN DSBC ; ligands: PEG ; X-RAY DIFFRACTION 2.6Å

e6dxnC1[C:33-98,C:161-220] Image Pymol Jmol Links: PDB, SCOP, CATH

Thiol:disulfide interchange protein ; ligands: PGE ; X-RAY DIFFRACTION 1.95Å

e6dxnD2[D:32-98,D:161-222] Image Pymol Jmol Links: PDB, SCOP, CATH

Thiol:disulfide interchange protein ; X-RAY DIFFRACTION 1.95Å

e1jzdA2[A:61-215] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

thiol:disulfide interchange protein dsbc ; X-RAY DIFFRACTION 1.9Å

e1jzdB2[B:61-214] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

thiol:disulfide interchange protein dsbc ; X-RAY DIFFRACTION 1.9Å

e1eejB2[B:61-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL:DISULFIDE INTERCHANGE PROTEIN ; ligands: MES ; X-RAY DIFFRACTION 1.9Å

e1jzoA2[A:61-215] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL:DISULFIDE INTERCHANGE PROTEIN DSBC ; X-RAY DIFFRACTION 1.9Å

e1jzoB2[B:61-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL:DISULFIDE INTERCHANGE PROTEIN DSBC ; X-RAY DIFFRACTION 1.9Å

e1tjdA2[A:61-216] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL:DISULFIDE INTERCHANGE PROTEIN DSBC ; X-RAY DIFFRACTION 2.5Å

e2h0gA2[A:62-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiol:disulfide interchange protein dsbG ; ligands: SO4 ; X-RAY DIFFRACTION 2.3Å

e1v57A2[A:62-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiol:disulfide interchange protein dsbG ; ligands: SO4 ; X-RAY DIFFRACTION 2Å

e2h0hB2[B:62-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiol:disulfide interchange protein dsbG ; ligands: SO4 ; X-RAY DIFFRACTION 1.8Å

e1v57B2[B:62-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiol:disulfide interchange protein dsbG ; ligands: SO4 ; X-RAY DIFFRACTION 2Å

e2h0hA2[A:62-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiol:disulfide interchange protein dsbG ; ligands: SO4 ; X-RAY DIFFRACTION 1.8Å

e2h0iB2[B:62-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiol:disulfide interchange protein dsbG ; ligands: SO4 ; X-RAY DIFFRACTION 2.4Å

e2h0iA2[A:62-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiol:disulfide interchange protein dsbG ; ligands: SO4 ; X-RAY DIFFRACTION 2.4Å

e1v58B2[B:62-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL:DISULFIDE INTERCHANGE PROTEIN DSBG ; ligands: SO4 ; X-RAY DIFFRACTION 1.7Å

e2h0gB2[B:62-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiol:disulfide interchange protein dsbG ; ligands: SO4 ; X-RAY DIFFRACTION 2.3Å

e3gv1A1[A:123-263] Image Pymol Jmol Links: PDB, SCOP, CATH

Disulfide interchange protein ; ligands: BEZ ; X-RAY DIFFRACTION 2.00Å

e3gv1B1[B:124-262] Image Pymol Jmol Links: PDB, SCOP, CATH

Disulfide interchange protein ; ligands: BEZ ; X-RAY DIFFRACTION 2.00Å

e3gv1C1[C:123-262] Image Pymol Jmol Links: PDB, SCOP, CATH

Disulfide interchange protein ; ligands: BEZ ; X-RAY DIFFRACTION 2.00Å

e4i5qA2[A:61-214] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiol:disulfide interchange protein DsbC ; X-RAY DIFFRACTION 1.962Å

e4i5qB2[B:61-214] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiol:disulfide interchange protein DsbC ; X-RAY DIFFRACTION 1.962Å

e4ilfA2[A:61-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiol:disulfide interchange protein DsbC ; X-RAY DIFFRACTION 1.999Å

e4ilfB2[B:61-214] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiol:disulfide interchange protein DsbC ; X-RAY DIFFRACTION 1.999Å

e4npbA2[A:82-235] Image Pymol Jmol Links: PDB, SCOP, CATH

PROTEIN DISULFIDE ISOMERASE II ; ligands: PO4,SUC ; X-RAY DIFFRACTION 2.15Å

e4npbB2[B:82-235] Image Pymol Jmol Links: PDB, SCOP, CATH

PROTEIN DISULFIDE ISOMERASE II ; ligands: PO4 ; X-RAY DIFFRACTION 2.15Å

e5g1lA1[A:62-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL DISULFIDE INTERCHANGE PROTEIN DSBG ; ligands: SO4 ; X-RAY DIFFRACTION 1.70Å

e5g1lB1[B:62-230] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THIOL DISULFIDE INTERCHANGE PROTEIN DSBG ; ligands: SO4 ; X-RAY DIFFRACTION 1.70Å

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.

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