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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_26

PF02156 CL0036

Representatives:

e2v3gA1[A:8-280] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

ENDOGLUCANASE H ; ligands: BGC,NOY ; X-RAY DIFFRACTION 1.2Å

e1odzA1[A:42-422] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mannan endo-1,4-beta-mannosidase ; ligands: NA,TRS,ZN ; X-RAY DIFFRACTION 1.400Å

e1r7oA1[A:42-361,A:388-420] Image Pymol Jmol Links: PDB, SCOP, CATH

MANNANASE A ; ligands: MES,SO4,ZN ; X-RAY DIFFRACTION 1.85Å

e7xjrA1[A:21-326] Image Pymol Jmol Links: PDB, SCOP, CATH

AlXyn26A ; X-RAY DIFFRACTION 1.85Å

e7xs3A1[A:20-326] Image Pymol Jmol Links: PDB, SCOP, CATH

AlXyn26A E243A-X3X4X ; X-RAY DIFFRACTION 1.9Å

e2bvtB2[B:5-369] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-1,4-MANNANASE ; ligands: CAC ; X-RAY DIFFRACTION 2.900Å

e7xs3B1[B:20-326] Image Pymol Jmol Links: PDB, SCOP, CATH

AlXyn26A E243A-X3X4X ; X-RAY DIFFRACTION 1.9Å

e2bvyA2[A:5-369] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-1,4-MANNANASE ; ligands: ACT,CAC,GOL ; X-RAY DIFFRACTION 2.25Å

e1odzB1[B:42-422] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mannan endo-1,4-beta-mannosidase ; ligands: NA,TRS,ZN ; X-RAY DIFFRACTION 1.400Å

e2bvtA2[A:5-369] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-1,4-MANNANASE ; ligands: CAC ; X-RAY DIFFRACTION 2.900Å

e1j9yA1[A:44-360,A:392-419] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANNANASE A ; ligands: ZN ; X-RAY DIFFRACTION 1.85Å

e1gvyA1[A:43-421] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANNAN ENDO-1,4-BETA-MANNOSIDASE ; ligands: MBF,NA,NIN,TRS,ZN ; X-RAY DIFFRACTION 1.700Å

e1gw1A1[A:43-421] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANNAN ENDO-1,4-BETA-MANNOSIDASE ; ligands: MAF,MBF,NA,NIN,TRS,ZN ; X-RAY DIFFRACTION 1.65Å

e2whkA1[A:1-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANNAN ENDO-1,4-BETA-MANNOSIDASE ; ligands: CA,GOL,TRS,ZN ; X-RAY DIFFRACTION 1.7Å

e2x2yA2[A:4-369] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MAN26A ; ligands: FMT,MG ; X-RAY DIFFRACTION 2.35Å

e3tp4A2[A:3-369] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COMPUTATIONAL DESIGN OF ENZYME ; ligands: ACY,PEG ; X-RAY DIFFRACTION 1.98Å

e2whmA1[A:43-423] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENDO-1,4-BETA MANNANASE, MAN26A ; ligands: NA,TRS,ZN ; X-RAY DIFFRACTION 1.50Å

e3cbwA1[A:27-362] Image Pymol Jmol Links: PDB, SCOP, CATH

YdhT protein ; ligands: CIT ; X-RAY DIFFRACTION 1.269Å

e2vx4A1[A:53-419] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CELLVIBRIO JAPONICUS MANNANASE CJMAN26C ; ligands: GOL,NA ; X-RAY DIFFRACTION 1.7Å

e3cbwB1[B:28-370] Image Pymol Jmol Links: PDB, SCOP, CATH

YdhT protein ; ligands: CIT ; X-RAY DIFFRACTION 1.269Å

e2qhaA1[A:1-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-1,4-MANNANASE ; ligands: GOL,ZN ; X-RAY DIFFRACTION 1.45Å

e2qhaB1[B:1-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-1,4-MANNANASE ; ligands: GOL,ZN ; X-RAY DIFFRACTION 1.45Å

e2vx5A1[A:53-419] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CELLVIBRIO JAPONICUS MANNANASE CJMAN26C ; ligands: BMA,NA ; X-RAY DIFFRACTION 1.47Å

e2vx6A1[A:53-419] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CELLVIBRIO JAPONICUS MANNANASE CJMAN26C ; ligands: NA ; X-RAY DIFFRACTION 1.57Å

e2vx7A1[A:53-419] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CELLVIBRIO JAPONICUS MANNANASE CJMAN26C ; ligands: MAB,NA ; X-RAY DIFFRACTION 1.8Å

e2x2yB1[B:4-370] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MAN26A ; ligands: FMT,MG ; X-RAY DIFFRACTION 2.35Å

e3tp4B2[B:3-366] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COMPUTATIONAL DESIGN OF ENZYME ; ligands: ACY,MG,PEG ; X-RAY DIFFRACTION 1.98Å

e3wdqA1[A:15-344] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-MANNANASE ; ligands: MG,NA,NAG ; X-RAY DIFFRACTION 1.3Å

e3zm8A3[A:131-449] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GH26 ENDO-BETA-1,4-MANNANASE ; ligands: HG,TLA ; X-RAY DIFFRACTION 2.85Å

e3wdrA1[A:15-344] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Beta-mannanase ; ligands: BCT,MG,NA ; X-RAY DIFFRACTION 1.4Å

e4cd4A1[A:53-419] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENDO-1,4-BETA MANNANASE, PUTATIVE, MAN26C ; ligands: BMA,IFM,NA ; X-RAY DIFFRACTION 1.20Å

e4cd5A1[A:53-419] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ENDO-1,4-BETA MANNANASE, PUTATIVE, MAN26C ; ligands: BMA,MVL,NA ; X-RAY DIFFRACTION 1.1Å

e6hpfA1[A:1-312] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

endo-b-mannanase ; ligands: ACY,BMA,CL,GLA,MAN,NAG,SO4 ; X-RAY DIFFRACTION 1.36Å

e6hf2A1[A:37-361] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glycosyl hydrolase family 26 ; ligands: CA,CL ; X-RAY DIFFRACTION 1.69Å

e6hf4A1[A:37-361] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Glycosyl hydrolase family 26 ; ligands: BMA,CA,CL,GLA ; X-RAY DIFFRACTION 1.78Å

e6d2wA2[A:90-425] Image Pymol Jmol Links: PDB, SCOP, CATH

Aryl-phospho-beta-D-glucosidase BglC, GH1 family ; ligands: EPE,GOL ; X-RAY DIFFRACTION 2.10Å

e6d2xA1[A:92-427] Image Pymol Jmol Links: PDB, SCOP, CATH

Aryl-phospho-beta-D-glucosidase BglC, GH1 family ; ligands: GOL,PE3,SO4 ; X-RAY DIFFRACTION 1.72Å

e6d2wB2[B:92-425] Image Pymol Jmol Links: PDB, SCOP, CATH

Aryl-phospho-beta-D-glucosidase BglC, GH1 family ; ligands: EPE ; X-RAY DIFFRACTION 2.10Å

e6q78A1[A:47-420] Image Pymol Jmol Links: PDB, SCOP, CATH

GH26C ; ligands: TRS ; X-RAY DIFFRACTION 1.50Å

e6q78B1[B:47-420] Image Pymol Jmol Links: PDB, SCOP, CATH

GH26C ; ligands: TRS ; X-RAY DIFFRACTION 1.50Å

e6q75A1[A:24-333] Image Pymol Jmol Links: PDB, SCOP, CATH

GH26A ; ligands: GOL,TRS ; X-RAY DIFFRACTION 1.75Å

e6q75B1[B:24-329] Image Pymol Jmol Links: PDB, SCOP, CATH

GH26A ; ligands: GOL ; X-RAY DIFFRACTION 1.75Å

e6uehA2[A:152-504] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cow rumen GH26 endo-mannanase ; ligands: ACT ; X-RAY DIFFRACTION 1.8490Å

e6zplC1[C:9-281] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Endoglucanase H ; X-RAY DIFFRACTION 3.9Å

e7eetA1[A:6-344] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mannanase KMAN ; ligands: SO4 ; X-RAY DIFFRACTION 2.57Å

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