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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

a/b three-layered sandwichesrepeating beta-alpha units form a sandwich with a mainly parallel beta-sheet layer stacked between two alpha-helix layers

X: Flavodoxin-like
H: Class I glutamine amidotransferase-like
T: Chelatase-like
F: ZnuA

PF01297 CL0043

Representatives:

e1pq4A1[A:47-139,A:174-218] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

periplasmic binding protein component of an ABC type zinc uptake transporter ; ligands: ZN ; X-RAY DIFFRACTION 1.8Å

e1pq4A2[A:219-335] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

periplasmic binding protein component of an ABC type zinc uptake transporter ; ligands: ZN ; X-RAY DIFFRACTION 1.8Å

e1toaA1[A:32-174] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (PERIPLASMIC BINDING PROTEIN TROA) ; ligands: GOL,ZN ; X-RAY DIFFRACTION 1.8Å

e1toaA2[A:175-308] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (PERIPLASMIC BINDING PROTEIN TROA) ; ligands: ZN ; X-RAY DIFFRACTION 1.8Å

e1pszA1[A:24-178] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (SURFACE ANTIGEN PSAA) ; ligands: ZN ; X-RAY DIFFRACTION 2.0Å

e3hh8A1[A:30-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Metal ABC transporter substrate-binding lipoprotein ; ligands: FE ; X-RAY DIFFRACTION 1.86Å

e4k3vA1[A:14-162] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ABC SUPERFAMILY ATP BINDING CASSETTE TRANSPORTER, BINDING PROTEIN ; ligands: MN ; X-RAY DIFFRACTION 2.2Å

e4k3vB2[B:14-162] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ABC SUPERFAMILY ATP BINDING CASSETTE TRANSPORTER, BINDING PROTEIN ; ligands: MN ; X-RAY DIFFRACTION 2.2Å

e4nnoA2[A:32-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Lipoprotein ; ligands: ZN ; X-RAY DIFFRACTION 1.17Å

e4nnpA1[A:32-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Lipoprotein ; X-RAY DIFFRACTION 2.69Å

e4nnpB2[B:32-179] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Lipoprotein ; X-RAY DIFFRACTION 2.69Å

e4oxqA1[A:29-176] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Manganese ABC transporter, periplasmic-binding protein SitA ; ligands: ZN ; X-RAY DIFFRACTION 2.62Å

e4oxqB1[B:29-176] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Manganese ABC transporter, periplasmic-binding protein SitA ; X-RAY DIFFRACTION 2.62Å

e4oxrA2[A:29-176] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Manganese ABC transporter, periplasmic-binding protein SitA ; ligands: MN ; X-RAY DIFFRACTION 2.0Å

e4oxrB1[B:29-176] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Manganese ABC transporter, periplasmic-binding protein SitA ; ligands: MN ; X-RAY DIFFRACTION 2.0Å

e4utoA2[A:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: CD,TRS ; X-RAY DIFFRACTION 1.55Å

e4utoB2[B:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: CD,TRS ; X-RAY DIFFRACTION 1.55Å

e4utpA2[A:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: CD ; X-RAY DIFFRACTION 2.00Å

e4utpB1[B:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: CD ; X-RAY DIFFRACTION 2.00Å

e4xrvA1[A:26-115,A:135-177] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: ZN

e4xrvB1[B:27-177] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: ZN

e3zk7A1[A:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: TRS ; X-RAY DIFFRACTION 1.69Å

e3zk7B1[B:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: TRS ; X-RAY DIFFRACTION 1.69Å

e3zk8A2[A:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: TRS ; X-RAY DIFFRACTION 1.65Å

e3zk8B1[B:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: TRS ; X-RAY DIFFRACTION 1.65Å

e3zk9A1[A:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: TRS ; X-RAY DIFFRACTION 1.45Å

e3zk9B1[B:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: TRS ; X-RAY DIFFRACTION 1.45Å

e3zkaA2[A:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: MN,TRS ; X-RAY DIFFRACTION 1.55Å

e3zkaB2[B:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: MN,TRS ; X-RAY DIFFRACTION 1.55Å

e3zttA1[A:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: MN ; X-RAY DIFFRACTION 2.74Å

e3zttB1[B:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: MN ; X-RAY DIFFRACTION 2.74Å

e3zttC2[C:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: MN ; X-RAY DIFFRACTION 2.74Å

e3zttD1[D:32-178] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MANGANESE ABC TRANSPORTER SUBSTRATE-BINDING LIPOPROTEIN ; ligands: MN ; X-RAY DIFFRACTION 2.74Å

e5hx7A1[A:32-179] Image Pymol Jmol Links: PDB, SCOP, CATH

Manganese-binding lipoprotein MntA ; X-RAY DIFFRACTION 1.750Å

e5i4kA2[A:31-179] Image Pymol Jmol Links: PDB, SCOP, CATH

Manganese-binding lipoprotein MntA ; ligands: CL,MN ; X-RAY DIFFRACTION 1.79Å

e5jpdA1[A:31-179] Image Pymol Jmol Links: PDB, SCOP, CATH

Manganese-binding lipoprotein MntA ; ligands: CD,CL ; X-RAY DIFFRACTION 1.720Å

e5hdqA2[A:16-162] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ABC transporter substrate-binding protein ; ligands: FE ; X-RAY DIFFRACTION 1.83Å

e1pszA2[A:179-309] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (SURFACE ANTIGEN PSAA) ; ligands: ZN ; X-RAY DIFFRACTION 2.0Å

e1xvlA1[A:49-197] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MN TRANSPORTER ; ligands: MN ; X-RAY DIFFRACTION 2.9Å

e1xvlA2[A:198-327] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MN TRANSPORTER ; ligands: MN ; X-RAY DIFFRACTION 2.9Å

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.

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