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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: CBM_48

PF02922 CL0369

Representatives:

e2bhuA1[A:14-110] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MALTOOLIGOSYLTREHALOSE TREHALOHYDROLASE ; X-RAY DIFFRACTION 1.1Å

e2fhfA1[A:288-402] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Alpha-dextrin endo-1,6-alpha-glucosidase ; X-RAY DIFFRACTION 1.60Å

e3wdhA2[A:105-204] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

Type I pullulanase ; X-RAY DIFFRACTION 1.750Å

e1bf2A1[A:1-162] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ISOAMYLASE ; ligands: CA ; X-RAY DIFFRACTION 2.0Å

e2e8yA2[A:92-197] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

AMYX PROTEIN ; X-RAY DIFFRACTION 2.11Å

e1m7xA1[A:117-226] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan Branching Enzyme ; X-RAY DIFFRACTION 2.3Å

e8sdbA1[A:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ligands: GLC ; X-RAY DIFFRACTION 3.0Å

e4aeeB6[B:1-110] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ALPHA AMYLASE, CATALYTIC REGION ; X-RAY DIFFRACTION 2.28Å

e8sdbB3[B:118-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; X-RAY DIFFRACTION 3.0Å

e6motA2[A:25-124] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Isoamylase N-terminal domain protein ; ligands: EDO ; X-RAY DIFFRACTION 1.710Å

e6mouA2[A:25-124] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Isoamylase N-terminal domain protein ; ligands: EDO ; X-RAY DIFFRACTION 2.24Å

e3vu2A1[A:8-162] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan-branching enzyme, chloroplastic/amyloplastic ; ligands: BGC,CEX ; X-RAY DIFFRACTION 2.20Å

e6mouB2[B:26-124] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Isoamylase N-terminal domain protein ; ligands: EDO ; X-RAY DIFFRACTION 2.24Å

e3amkA2[A:6-162] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Os06g0726400 protein ; ligands: PO4 ; X-RAY DIFFRACTION 1.90Å

e7b5vB2[B:292-392] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carbohydrate Esterase family 1 protein with an N-terminal carbohydrate binding module family 48 ; ligands: EDO ; X-RAY DIFFRACTION 1.697Å

e4bzyB3[B:44-181] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-ALPHA-GLUCAN-BRANCHING ENZYME ; X-RAY DIFFRACTION 2.75Å

e3amlA5[A:7-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

OS06G0726400 PROTEIN ; ligands: BME,EPE,GOL ; X-RAY DIFFRACTION 1.7Å

e7b5vA2[A:294-392] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carbohydrate Esterase family 1 protein with an N-terminal carbohydrate binding module family 48 ; ligands: EDO,PEG ; X-RAY DIFFRACTION 1.697Å

e7b6bA2[A:295-392] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carbohydrate Esterase family 1 protein with an N-terminal carbohydrate binding module family 48 ; X-RAY DIFFRACTION 1.408Å

e4bzyA11[A:43-182] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-ALPHA-GLUCAN-BRANCHING ENZYME ; X-RAY DIFFRACTION 2.75Å

e4bzyC3[C:46-181] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-ALPHA-GLUCAN-BRANCHING ENZYME ; X-RAY DIFFRACTION 2.75Å

e7b6bB2[B:295-392] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Carbohydrate Esterase family 1 protein with an N-terminal carbohydrate binding module family 48 ; X-RAY DIFFRACTION 1.408Å

e3vu2B1[B:1-154] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan-branching enzyme, chloroplastic/amyloplastic ; ligands: BGC,CEX,GOL ; X-RAY DIFFRACTION 2.20Å

e5cltA3[A:44-181] Image Pymol Jmol Links: PDB, SCOP, CATH

1,4-alpha-glucan-branching enzyme ; ligands: ACR ; X-RAY DIFFRACTION 2.790Å

e5cltC1[C:45-181] Image Pymol Jmol Links: PDB, SCOP, CATH

1,4-alpha-glucan-branching enzyme ; ligands: ACR ; X-RAY DIFFRACTION 2.790Å

e5cltB1[B:43-182] Image Pymol Jmol Links: PDB, SCOP, CATH

1,4-alpha-glucan-branching enzyme ; ligands: ACR ; X-RAY DIFFRACTION 2.790Å

e5clwC1[C:46-181] Image Pymol Jmol Links: PDB, SCOP, CATH

1,4-alpha-glucan-branching enzyme ; ligands: GLC ; X-RAY DIFFRACTION 2.8Å

e5clwA2[A:43-182] Image Pymol Jmol Links: PDB, SCOP, CATH

1,4-alpha-glucan-branching enzyme ; ligands: GLC ; X-RAY DIFFRACTION 2.8Å

e5clwB3[B:44-182] Image Pymol Jmol Links: PDB, SCOP, CATH

1,4-alpha-glucan-branching enzyme ; ligands: GLC ; X-RAY DIFFRACTION 2.8Å

e1m7xB1[B:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan Branching Enzyme ; X-RAY DIFFRACTION 2.3Å

e1m7xD1[D:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan Branching Enzyme ; X-RAY DIFFRACTION 2.3Å

e3k1dA5[A:118-231] Image Pymol Jmol Links: PDB, SCOP, CATH

1,4-ALPHA-GLUCAN-BRANCHING ENZYME ; X-RAY DIFFRACTION 2.33Å

e1m7xC5[C:118-223] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan Branching Enzyme ; X-RAY DIFFRACTION 2.3Å

e4lpcA1[A:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.40Å

e4lpcB2[B:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: BGC,GOL ; X-RAY DIFFRACTION 2.40Å

e4lpcC2[C:118-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.40Å

e4lpcD2[D:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.40Å

e4lq1A1[A:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.550Å

e4lq1B3[B:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.550Å

e4lq1C3[C:118-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.550Å

e4lq1D1[D:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.550Å

e5e70C2[C:118-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.33Å

e5e6yA1[A:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.6Å

e5e6yB3[B:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.6Å

e5e6yC2[C:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.6Å

e5e6yD2[D:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: ACX ; X-RAY DIFFRACTION 2.6Å

e5e6zA1[A:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 1.878Å

e5e6zB1[B:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 1.878Å

e5e6zC3[C:118-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 1.878Å

e5e6zD2[D:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 1.878Å

e5e70A3[A:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.33Å

e5e70B3[B:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.33Å

e5e70D2[D:117-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: RCD ; X-RAY DIFFRACTION 2.33Å

e5gquA2[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 1.85Å

e5gqvA1[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: GLC ; X-RAY DIFFRACTION 3.00Å

e5gqwA4[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: GOL ; X-RAY DIFFRACTION 1.80Å

e5gqxA1[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: GLC ; X-RAY DIFFRACTION 2.30Å

e5gqyA4[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: GLC ; X-RAY DIFFRACTION 2.00Å

e5gqzA2[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: GOL ; X-RAY DIFFRACTION 1.85Å

e5gr0A4[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: GOL ; X-RAY DIFFRACTION 1.95Å

e5gr1A4[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: GLC ; X-RAY DIFFRACTION 2.50Å

e5gr2A3[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: GOL ; X-RAY DIFFRACTION 1.95Å

e5gr3A4[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: MG ; X-RAY DIFFRACTION 2.60Å

e5gr4A1[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: GLC,MG ; X-RAY DIFFRACTION 2.00Å

e5gr6A1[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: GOL,MG ; X-RAY DIFFRACTION 2.00Å

e5gr5A4[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.40Å

e6rznA2[A:22-115] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ferulic acid esterase ; X-RAY DIFFRACTION 1.907Å

e6rznB2[B:22-115] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ferulic acid esterase ; X-RAY DIFFRACTION 1.907Å

e6joyA1[A:1-117] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; X-RAY DIFFRACTION 2.39Å

e6klfA4[A:117-225] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan branching enzyme GlgB ; ligands: GOL,MG ; X-RAY DIFFRACTION 2.50Å

e7ml5A3[A:9-162] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Isoform 2 of 1,4-alpha-glucan-branching enzyme, chloroplastic/amyloplastic ; X-RAY DIFFRACTION 2.35Å

e7p45A3[A:30-177] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1,4-alpha-glucan-branching enzyme ; ligands: EDO ; X-RAY DIFFRACTION 2.09Å

e8bbpA2[A:21-115] Image Pymol Jmol Links: PDB, SCOP, CATH

Ferulic acid esterase ; ligands: EDO ; X-RAY DIFFRACTION 1.07Å

e8bbpB2[B:20-115] Image Pymol Jmol Links: PDB, SCOP, CATH

Ferulic acid esterase ; ligands: EDO ; X-RAY DIFFRACTION 1.07Å

e8bf3A2[A:21-115] Image Pymol Jmol Links: PDB, SCOP, CATH

Ferulic acid esterase ; ligands: EDO,XYP ; X-RAY DIFFRACTION 1.19Å

e8bf3B2[B:21-115] Image Pymol Jmol Links: PDB, SCOP, CATH

Ferulic acid esterase ; ligands: EDO,XYP ; X-RAY DIFFRACTION 1.19Å

e8sdbC2[C:116-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; X-RAY DIFFRACTION 3.0Å

e4j7rA1[A:76-242] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Isoamylase ; X-RAY DIFFRACTION 2.300Å

e1eh9A1[A:1-90] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLYCOSYLTREHALOSE TREHALOHYDROLASE ; X-RAY DIFFRACTION 3.0Å

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