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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: EscU C-terminal domain-like
H: EscU C-terminal domain-like
T: EscU C-terminal domain-like
F: Bac_export_2

PF01312

Representatives:

e3bzy.1[A:246-262,B:263-345] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; ligands: SO4 ; X-RAY DIFFRACTION 1.200Å

e3bzx.1[A:246-262,B:263-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; ligands: SO4 ; X-RAY DIFFRACTION 1.600Å

e3bztA1[A:246-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; X-RAY DIFFRACTION 1.500Å

e3c03A1[A:247-343] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; ligands: PRO ; X-RAY DIFFRACTION 1.900Å

e3bzl.1[A:246-262,C:263-343] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; ligands: NA ; X-RAY DIFFRACTION 1.710Å

e3bzpA1[A:246-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; X-RAY DIFFRACTION 1.499Å

e3bzrA1[A:246-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; X-RAY DIFFRACTION 1.646Å

e3bzz.1[A:246-262,B:263-343] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; X-RAY DIFFRACTION 1.407Å

e3c01.1[A:239-258,E:259-340] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Surface presentation of antigens protein spaS ; ligands: CYS,SO4 ; X-RAY DIFFRACTION 2.600Å

e3t7yA1[A:249-342] Image Pymol Jmol Links: PDB, SCOP, CATH

YOP PROTEINS TRANSLOCATION PROTEIN U ; ligands: CL,FMT,NA,SIN ; X-RAY DIFFRACTION 2.1Å

e2jlhA1[A:231-344] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YOP PROTEINS TRANSLOCATION PROTEIN U ; ligands: 1PE ; X-RAY DIFFRACTION 1.53Å

e3b0zB1[B:270-353] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Flagellar biosynthetic protein flhB ; ligands: NA ; X-RAY DIFFRACTION 2.45Å

e3bzsA1[A:248-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; X-RAY DIFFRACTION 1.480Å

e2jliA1[A:240-339] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YOP PROTEINS TRANSLOCATION PROTEIN ; X-RAY DIFFRACTION 1.13Å

e2v5gA1[A:222-341] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YSCU ; ligands: CL ; X-RAY DIFFRACTION 2.05Å

e2w0rA1[A:222-343] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YSCU ; ligands: CL ; X-RAY DIFFRACTION 1.55Å

e2jljA1[A:230-344] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

YOP PROTEINS TRANSLOCATION PROTEIN U ; X-RAY DIFFRACTION 1.3Å

e3t7yB1[B:249-342] Image Pymol Jmol Links: PDB, SCOP, CATH

YOP PROTEINS TRANSLOCATION PROTEIN U ; ligands: CL,FMT,NA ; X-RAY DIFFRACTION 2.1Å

e3b1s.1[A:232-263,B:264-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Flagellar biosynthetic protein flhB ; X-RAY DIFFRACTION 2.55Å

e3b1s.2[C:232-263,D:264-347] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Flagellar biosynthetic protein flhB ; X-RAY DIFFRACTION 2.55Å

e3b1s.4[E:232-263,F:264-344] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Flagellar biosynthetic protein flhB ; X-RAY DIFFRACTION 2.55Å

e3b0z.1[A:230-269,B:270-281,B:348-353] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Flagellar biosynthetic protein flhB ; ligands: NA,ZN ; X-RAY DIFFRACTION 2.45Å

e5culB1[B:48-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translocation protein in type III secretion ; X-RAY DIFFRACTION 2.90Å

e3c01F1[F:259-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Surface presentation of antigens protein spaS ; ligands: CYS,SO4 ; X-RAY DIFFRACTION 2.600Å

e3bzlD1[D:263-344] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; X-RAY DIFFRACTION 1.710Å

e3c01G1[G:259-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Surface presentation of antigens protein spaS ; ligands: CYS,MPD,SO4 ; X-RAY DIFFRACTION 2.600Å

e3c01H1[H:259-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Surface presentation of antigens protein spaS ; ligands: CYS,SO4 ; X-RAY DIFFRACTION 2.600Å

e3bzo.2[A:246-262,B:264-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; ligands: SO4 ; X-RAY DIFFRACTION 1.500Å

e3c03.2[B:245-262,C:264-343] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; ligands: PRO ; X-RAY DIFFRACTION 1.900Å

e3c00.2[A:244-262,B:263-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; X-RAY DIFFRACTION 1.410Å

e3bzv.2[A:239-262,B:264-343] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; X-RAY DIFFRACTION 1.940Å

e6ejpD1[D:364-453] Image Pymol Jmol Links: PDB, SCOP, CATH

Yop proteins translocation protein U ; ligands: B8E ; X-RAY DIFFRACTION 2.48Å

e6ejpC1[C:364-450] Image Pymol Jmol Links: PDB, SCOP, CATH

Yop proteins translocation protein U ; ligands: B8E,CL,NA,PO4 ; X-RAY DIFFRACTION 2.48Å

e6z0wB1[B:251-353] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Flagellar biosynthetic protein FlhB ; X-RAY DIFFRACTION 2.1Å

e6z0wD1[D:252-353] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Flagellar biosynthetic protein FlhB ; X-RAY DIFFRACTION 2.1Å

e6z0wA1[A:252-353] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Flagellar biosynthetic protein FlhB ; X-RAY DIFFRACTION 2.1Å

e6z0wC1[C:252-353] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Flagellar biosynthetic protein FlhB ; X-RAY DIFFRACTION 2.1Å

e6ejpA1[A:211-263] Image Pymol Jmol Links: PDB, SCOP, CATH

Yop proteins translocation protein U ; ligands: CL,PO4 ; X-RAY DIFFRACTION 2.48Å

e6ejpB1[B:213-263] Image Pymol Jmol Links: PDB, SCOP, CATH

Yop proteins translocation protein U ; ligands: PO4 ; X-RAY DIFFRACTION 2.48Å

e3bzlB1[B:209-262] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EscU ; ligands: FMT ; X-RAY DIFFRACTION 1.710Å

e2vt1.1[A:237-257,B:258-338] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SURFACE PRESENTATION OF ANTIGENS PROTEIN SPAS ; X-RAY DIFFRACTION 2.00Å

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