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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

X: beta-Prism I
H: beta-Prism I
T: beta-Prism I
F: Endotoxin_M

PF00555 CL0568

Representatives:

e1ciyA2[A:256-461] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CRYIA(A) ; X-RAY DIFFRACTION 2.25Å

e1dlcA2[A:290-499] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DELTA-ENDOTOXIN CRYIIIA ; X-RAY DIFFRACTION 2.5Å

e1ji6A2[A:291-502] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PESTICIDIAL CRYSTAL PROTEIN CRY3BB ; X-RAY DIFFRACTION 2.4Å

e1w99A3[A:271-470] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PESTICIDIAL CRYSTAL PROTEIN CRY4BA ; ligands: BR,P6G ; X-RAY DIFFRACTION 1.750Å

e2c9kA3[A:318-529] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PESTICIDAL CRYSTAL PROTEIN CRY4AA ; ligands: MPD ; X-RAY DIFFRACTION 2.8Å

e3eb7A2[A:290-498] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

INSECTICIDAL DELTA-ENDOTOXIN CRY8EA1 ; ligands: ACT,SO4 ; X-RAY DIFFRACTION 2.3Å

e3eb7B2[B:290-498] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

INSECTICIDAL DELTA-ENDOTOXIN CRY8EA1 ; ligands: ACT,SO4 ; X-RAY DIFFRACTION 2.3Å

e3eb7C2[C:290-498] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

INSECTICIDAL DELTA-ENDOTOXIN CRY8EA1 ; ligands: ACT,SO4 ; X-RAY DIFFRACTION 2.3Å

e4aryB2[B:256-462] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PESTICIDAL CRYSTAL PROTEIN CRY1AC ; ligands: 13D ; X-RAY DIFFRACTION 2.35Å

e4aryD2[D:255-461] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PESTICIDAL CRYSTAL PROTEIN CRY1AC ; X-RAY DIFFRACTION 2.35Å

e4arxB2[B:255-461] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PESTICIDAL CRYSTAL PROTEIN CRY1AC ; ligands: 13D ; X-RAY DIFFRACTION 2.34Å

e4aryA2[A:256-462] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PESTICIDAL CRYSTAL PROTEIN CRY1AC ; ligands: 13D ; X-RAY DIFFRACTION 2.35Å

e4arxC2[C:255-461] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PESTICIDAL CRYSTAL PROTEIN CRY1AC ; ligands: 13D ; X-RAY DIFFRACTION 2.34Å

e4aryC2[C:255-461] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PESTICIDAL CRYSTAL PROTEIN CRY1AC ; X-RAY DIFFRACTION 2.35Å

e4arxA2[A:256-462] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PESTICIDAL CRYSTAL PROTEIN CRY1AC ; ligands: 13D ; X-RAY DIFFRACTION 2.34Å

e4arxD2[D:254-460] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PESTICIDAL CRYSTAL PROTEIN CRY1AC ; ligands: 13D,GOL ; X-RAY DIFFRACTION 2.34Å

e4qx0A3[A:290-499] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pesticidal crystal protein cry3Aa ; X-RAY DIFFRACTION 2.800Å

e4qx1A3[A:290-499] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pesticidal crystal protein cry3Aa ; X-RAY DIFFRACTION 2.8Å

e4qx2A3[A:290-499] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pesticidal crystal protein cry3Aa ; X-RAY DIFFRACTION 2.9Å

e4qx3A3[A:290-499] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pesticidal crystal protein cry3Aa ; X-RAY DIFFRACTION 2.9Å

e4moaA1[A:272-471] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pesticidal crystal protein cry4Ba ; X-RAY DIFFRACTION 2.00Å

e6dj4A3[A:256-462] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cry1A.105 ; X-RAY DIFFRACTION 3.01Å

e5zi1A3[A:279-496] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

insecticidal crystal protein Cry7Cal ; ligands: ACT ; X-RAY DIFFRACTION 2.300Å

e5zi1B2[B:279-496] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

insecticidal crystal protein Cry7Cal ; X-RAY DIFFRACTION 2.300Å

e6owkA1[A:276-490] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pesticidal crystal protein Cry1Be, Cry1K-like protein chimera ; X-RAY DIFFRACTION 2.698Å

e6ovbA3[A:255-451] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Active core crystal toxin protein 1D ; X-RAY DIFFRACTION 2.611Å

e6lfpA1[A:290-499] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cry3Aa protein ; X-RAY DIFFRACTION 3.310Å

e7earA2[A:290-499] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Crystaline entomocidal protoxin ; X-RAY DIFFRACTION 2.2Å

e6wpcA2[A:277-483] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cry1A.2 ; X-RAY DIFFRACTION 2.99Å

e6wpcB2[B:277-483] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cry1A.2 ; X-RAY DIFFRACTION 2.99Å

e6wpcC2[C:277-483] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cry1A.2 ; X-RAY DIFFRACTION 2.99Å

e6wpcD3[D:277-483] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cry1A.2 ; X-RAY DIFFRACTION 2.99Å

e4w8jA2[A:255-462] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pesticidal crystal protein cry1Ac ; X-RAY DIFFRACTION 2.78Å

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 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