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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

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

X: TIM beta/alpha-barrel
H: TIM barrels
T: TIM barrels
F: Glyco_hydro_17

PF00332 CL0036

Representatives:

e2cygA1[A:29-340] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-1, 3-GLUCANANSE ; X-RAY DIFFRACTION 1.45Å

e8akpA1[A:0-289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

catalytic domain of G7048 ; ligands: TRS ; X-RAY DIFFRACTION 1.9Å

e1ghrA1[A:1-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,3-1,4-BETA-GLUCANASE ; X-RAY DIFFRACTION 2.2Å

e1aq0B1[B:1-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,3-1,4-BETA-GLUCANASE ; ligands: ACT ; X-RAY DIFFRACTION 2.0Å

e1aq0A1[A:1-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,3-1,4-BETA-GLUCANASE ; ligands: ACT ; X-RAY DIFFRACTION 2.0Å

e1ghsA1[A:1-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,3-BETA-GLUCANASE ; X-RAY DIFFRACTION 2.3Å

e1ghsB1[B:1-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,3-BETA-GLUCANASE ; X-RAY DIFFRACTION 2.3Å

e3em5A1[A:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4gziA1[A:24-338] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glucan endo-1,3-beta-D-glucosidase ; X-RAY DIFFRACTION 1.68Å

e3ur7A1[A:24-338] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glucan endo-1,3-beta-D-glucosidase ; X-RAY DIFFRACTION 1.40Å

e3em5B1[B:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3em5C1[C:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3em5D1[D:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3f55A1[A:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3f55B1[B:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3f55C1[C:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3f55D1[D:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3ur7B1[B:24-338] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glucan endo-1,3-beta-D-glucosidase ; ligands: NA ; X-RAY DIFFRACTION 1.40Å

e3ur8A1[A:24-338] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glucan endo-1,3-beta-D-glucosidase ; X-RAY DIFFRACTION 1.26Å

e3ur8B1[B:24-338] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glucan endo-1,3-beta-D-glucosidase ; X-RAY DIFFRACTION 1.26Å

e4gzjA1[A:24-338] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glucan endo-1,3-beta-D-glucosidase ; X-RAY DIFFRACTION 1.55Å

e4hpgA1[A:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Beta-1,3-glucanase ; ligands: PEG ; X-RAY DIFFRACTION 2.5Å

e4hpgB1[B:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Beta-1,3-glucanase ; ligands: NAG ; X-RAY DIFFRACTION 2.5Å

e4hpgC1[C:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Beta-1,3-glucanase ; ligands: NAG,PEG ; X-RAY DIFFRACTION 2.5Å

e4hpgD1[D:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Beta-1,3-glucanase ; X-RAY DIFFRACTION 2.5Å

e4iisA1[A:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Beta-1,3-glucanase form 'RRII Gln 2' ; ligands: CAC,FLC ; X-RAY DIFFRACTION 2.61Å

e4iisB1[B:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Beta-1,3-glucanase form 'RRII Gln 2' ; X-RAY DIFFRACTION 2.61Å

e4iisC1[C:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Beta-1,3-glucanase form 'RRII Gln 2' ; ligands: NA ; X-RAY DIFFRACTION 2.61Å

e4iisD1[D:1-316] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Beta-1,3-glucanase form 'RRII Gln 2' ; ligands: CAC,FLC ; X-RAY DIFFRACTION 2.61Å

e4wtpA1[A:-1-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

beta-1,3-glucanosyltransferase ; ligands: EDO ; X-RAY DIFFRACTION 1.299Å

e4wtrA1[A:-1-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

beta-1,3-glucanosyltransferase ; ligands: BGC ; X-RAY DIFFRACTION 2.268Å

e4wtsA1[A:-1-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

beta-1,3-glucanosyltransferase ; ligands: BGC ; X-RAY DIFFRACTION 2.30Å

e6fcgA1[A:38-430] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glycoside hydrolase, GH17 family ; X-RAY DIFFRACTION 2.60Å

e6fcgB1[B:38-430] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glycoside hydrolase, GH17 family ; ligands: CA ; X-RAY DIFFRACTION 2.60Å

e6fcgC1[C:38-430] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glycoside hydrolase, GH17 family ; X-RAY DIFFRACTION 2.60Å

e6fcgD1[D:38-430] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glycoside hydrolase, GH17 family ; ligands: CA ; X-RAY DIFFRACTION 2.60Å

e6fcgE1[E:38-430] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glycoside hydrolase, GH17 family ; ligands: CA ; X-RAY DIFFRACTION 2.60Å

e6fcgF1[F:38-430] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glycoside hydrolase, GH17 family ; X-RAY DIFFRACTION 2.60Å

e6jmsA1[A:1-320] Image Pymol Jmol Links: PDB, SCOP, CATH

Pollen allergen CJP38 ; ligands: EDO ; X-RAY DIFFRACTION 1.50Å

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 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