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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: Glycosyl hydrolase domain-like

some similarity with Ig fold

H: ZU5/Nup98-C/GAIN-B autoproteolytic domain-related
T: ZU5/Nup98-C/GAIN-B autoproteolytic domain-related
F: ZU5

PF00791 CL0661

Representatives:

e3g5bA1[A:541-688] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Netrin receptor UNC5B ; ligands: PO4 ; X-RAY DIFFRACTION 2.0Å

e3f59A1[A:912-1068] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; ligands: BR ; X-RAY DIFFRACTION 2.00Å

e2kxsA1[A:1-146] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Tight junction protein ZO-1,Myocardial zonula adherens protein ; SOLUTION NMR

e2kxrA1[A:1-118] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TIGHT JUNCTION PROTEIN ZO-1 ; SOLUTION NMR

e3f59D1[D:909-1068] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; ligands: BR ; X-RAY DIFFRACTION 2.00Å

e4d8oA1[A:964-1126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-2 ; X-RAY DIFFRACTION 2.200Å

e3f59C1[C:910-1068] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; ligands: BR ; X-RAY DIFFRACTION 2.00Å

e3kbtC1[C:910-1068] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; X-RAY DIFFRACTION 2.75Å

e3kbtD1[D:910-1068] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; X-RAY DIFFRACTION 2.75Å

e3kbuD1[D:910-1068] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; ligands: HG ; X-RAY DIFFRACTION 2.75Å

e3ud1A1[A:912-1070] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ANKYRIN-1 ; ligands: EOH ; X-RAY DIFFRACTION 2.0Å

e3kbuC1[C:911-1068] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; ligands: HG ; X-RAY DIFFRACTION 2.75Å

e3f59B1[B:913-1068] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; ligands: BR ; X-RAY DIFFRACTION 2.00Å

e3ud2B5[B:913-1070] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; ligands: NA ; X-RAY DIFFRACTION 2.20Å

e3ud2A5[A:913-1070] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; ligands: EOH ; X-RAY DIFFRACTION 2.20Å

e3ud1C5[C:912-1070] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ANKYRIN-1 ; ligands: EOH ; X-RAY DIFFRACTION 2.0Å

e3ud1B5[B:912-1070] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ANKYRIN-1 ; ligands: EOH ; X-RAY DIFFRACTION 2.0Å

e3ud2C3[C:912-1070] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; ligands: EOH,NA ; X-RAY DIFFRACTION 2.20Å

e6m3pE1[E:960-1126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-3 ; X-RAY DIFFRACTION 3.300Å

e6m3qE1[E:954-1159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-2 ; X-RAY DIFFRACTION 3.400Å

e6m3pC1[C:960-1126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-3 ; X-RAY DIFFRACTION 3.300Å

e6m3rE2[E:968-1126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-3 ; X-RAY DIFFRACTION 4.300Å

e4d8oA2[A:1126-1289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-2 ; X-RAY DIFFRACTION 2.200Å

e3ud1A2[A:1071-1233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ANKYRIN-1 ; X-RAY DIFFRACTION 2.0Å

e3ud2B6[B:1071-1233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; ligands: CL,EOH,NA ; X-RAY DIFFRACTION 2.20Å

e3ud2A6[A:1071-1233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; X-RAY DIFFRACTION 2.20Å

e3ud1C6[C:1071-1233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ANKYRIN-1 ; X-RAY DIFFRACTION 2.0Å

e3ud1B6[B:1071-1233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ANKYRIN-1 ; ligands: EOH ; X-RAY DIFFRACTION 2.0Å

e3ud2C4[C:1071-1233] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-1 ; X-RAY DIFFRACTION 2.20Å

e6m3pE2[E:1126-1289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-3 ; X-RAY DIFFRACTION 3.300Å

e6m3qE2[E:1159-1322] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-2 ; X-RAY DIFFRACTION 3.400Å

e6m3pC2[C:1126-1289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-3 ; X-RAY DIFFRACTION 3.300Å

e6m3rE1[E:1126-1289] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ankyrin-3 ; X-RAY DIFFRACTION 4.300Å

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