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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

X: L9 N-domain-like
H: GINS/PriA/YqbF domain
T: GINS/PriA/YqbF domain
F: SLD5_C

PF16922

Representatives:

e2e9xD2[D:166-223] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GINS complex subunit 4 ; X-RAY DIFFRACTION 1.99Å

e8q6oK2[K:164-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8b9bF2[F:223-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8b9cF1[F:223-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e2ehoE2[E:165-213] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GINS COMPLEX SUBUNIT 4 ; ligands: SO4 ; X-RAY DIFFRACTION 3.0Å

e2e9xH2[H:166-223] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GINS complex subunit 4 ; ligands: SO4 ; X-RAY DIFFRACTION 1.99Å

e2q9qB2[B:166-222] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GINS complex subunit 4 ; X-RAY DIFFRACTION 2.36Å

e2q9qF2[F:166-222] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GINS complex subunit 4 ; X-RAY DIFFRACTION 2.36Å

e2ehoI2[I:165-212] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GINS COMPLEX SUBUNIT 4 ; ligands: SO4 ; X-RAY DIFFRACTION 3.0Å

e6rawN1[N:176-228] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6razN2[N:176-228] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6raxN1[N:176-228] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6rayN1[N:176-228] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6xtxD1[D:166-223] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6xtyD2[D:166-223] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e7pfoG2[G:166-223] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e7ploG2[G:166-223] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e8b9dG2[G:166-223] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8ouwD2[D:165-224] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e8q6oQ1[Q:164-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

e3jc5D2[D:223-293] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e3jc6D2[D:223-293] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e3jc7D2[D:223-293] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e5u8sD1[D:223-293] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e5u8tD1[D:223-293] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6hv9F2[F:223-293] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6ptjD2[D:223-293] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6ptnd2[d:223-293] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6ptnD2[D:223-293] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6ptoq1[q:223-293] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6ptoD1[D:223-293] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6ptod2[d:223-293] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6u0mD2[D:223-293] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e6sklD1[D:223-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e7pmkD2[D:223-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e7pmnD2[D:223-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e7qhsD2[D:223-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e7z13D1[D:223-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e7z13K2[K:223-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA replication complex GINS protein SLD5 ; ELECTRON MICROSCOPY

e8b9aF1[F:223-294] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

; ELECTRON MICROSCOPY

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: LuxS, MPP, ThrRS/AlaRS common domain

looks like an elaborated ferredoxin

X: ClpS-like

contains a HTH motif

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