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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: P-loop domains-like
H: P-loop domains-related
T: P-loop containing nucleoside triphosphate hydrolases
F: DNA_pol3_delta

PF06144 CL0023

Representatives:

e1jqlB1[B:1-140] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA Polymerase III, DELTA SUBUNIT ; X-RAY DIFFRACTION 2.5Å

e1xxiF3[F:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA POLYMERASE III, DELTA SUBUNIT ; X-RAY DIFFRACTION 4.1Å

e1jqjD3[D:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase III, delta subunit ; X-RAY DIFFRACTION 2.9Å

e1jqjC3[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase III, delta subunit ; X-RAY DIFFRACTION 2.9Å

e1jr3D3[D:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase III, delta subunit ; X-RAY DIFFRACTION 2.7Å

e1xxiA3[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA POLYMERASE III, DELTA SUBUNIT ; X-RAY DIFFRACTION 4.1Å

e1xxhA3[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA POLYMERASE III, DELTA SUBUNIT ; X-RAY DIFFRACTION 3.45Å

e3glfA3[A:1-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase III subunit delta ; X-RAY DIFFRACTION 3.388Å

e3glfF3[F:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase III subunit delta ; X-RAY DIFFRACTION 3.388Å

e3glgA3[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase III subunit delta ; X-RAY DIFFRACTION 3.25Å

e3glgF3[F:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase III subunit delta ; X-RAY DIFFRACTION 3.25Å

e3gliA3[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase III subunit delta ; X-RAY DIFFRACTION 3.50Å

e3glhA3[A:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase III subunit delta ; X-RAY DIFFRACTION 3.891Å

e3glhF3[F:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase III subunit delta ; X-RAY DIFFRACTION 3.891Å

e3glhK3[K:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase III subunit delta ; X-RAY DIFFRACTION 3.891Å

e3gliF3[F:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase III subunit delta ; X-RAY DIFFRACTION 3.50Å

e3zh9B1[B:1-147] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DELTA ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.1Å

e1xxhF3[F:1-142] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA POLYMERASE III, DELTA SUBUNIT ; X-RAY DIFFRACTION 3.45Å

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