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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

X: RUN domain
H: RUN domain
T: RUN domain
F: RUN

PF02759

Representatives:

e2cxfA1[A:83-249] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RAP2 INTERACTING PROTEIN X ; X-RAY DIFFRACTION 3.07Å

e2cxlA1[A:83-247] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RAP2 INTERACTING PROTEIN X ; X-RAY DIFFRACTION 3.2Å

e2dwkA1[A:83-251] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN RUFY3 ; X-RAY DIFFRACTION 2.0Å

e2dwgA1[A:83-247] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN RUFY3 ; X-RAY DIFFRACTION 3.22Å

e2dwgB1[B:83-247] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN RUFY3 ; X-RAY DIFFRACTION 3.22Å

e4giwA1[A:7-190] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RUN AND SH3 DOMAIN-CONTAINING PROTEIN 1 ; X-RAY DIFFRACTION 2.0Å

e4giwB1[B:1-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RUN AND SH3 DOMAIN-CONTAINING PROTEIN 1 ; X-RAY DIFFRACTION 2.0Å

e3cwzB3[B:713-808,B:839-924] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Rab6-interacting protein 1 ; X-RAY DIFFRACTION 3.0Å

e6if2A1[A:984-1178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Iporin ; X-RAY DIFFRACTION 2.400Å

e7bqiA1[A:5-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FYVE and coiled-coil domain-containing protein 1 ; X-RAY DIFFRACTION 1.30Å

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

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