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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: Rossmann-like
H: Rossmann-related
T: NagB/RpiA/CoA transferase-like
F: IF-2B

PF01008 CL0063

Representatives:

e1w2w.1[A:150-211,B:221-411] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

5-METHYLTHIORIBOSE-1-PHOSPHATE ISOMERASE ; ligands: SO4 ; X-RAY DIFFRACTION 1.750Å

e1t5oA1[A:132-341] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

Translation initiation factor eIF2B, subunit delta ; X-RAY DIFFRACTION 1.9Å

e7d43B2[B:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7d44A2[A:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7d44B2[B:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7d45A2[A:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7d45B2[B:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7d46A2[A:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7d46B2[B:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7d43G1[G:316-518] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7d43H1[H:316-518] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7d44G1[G:316-518] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7d44H2[H:316-518] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7d45G1[G:316-518] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7d45H2[H:316-518] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7d46G1[G:316-518] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7d46H1[H:316-518] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7d43C1[C:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7d44C1[C:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7d45C1[C:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7d43D2[D:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7d44D1[D:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7d45D1[D:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7d46C2[C:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7d46D1[D:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7l70H1[H:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7l7gF1[F:316-522] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ligands: C7B ; ELECTRON MICROSCOPY

e7l70C2[C:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7l7gH1[H:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7l7gG2[G:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7l70D1[D:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7l7gC1[C:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ligands: C7B ; ELECTRON MICROSCOPY

e7l7gD2[D:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ligands: C7B ; ELECTRON MICROSCOPY

e7l70G1[G:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7l70F2[F:316-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7l7gE1[E:316-522] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7l70E2[E:316-517] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7kmfD1[D:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7kmfG1[G:107-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ligands: F6P ; ELECTRON MICROSCOPY

e7kmaC1[C:107-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ligands: M6P ; X-RAY DIFFRACTION 2.70Å

e7kmaA1[A:107-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ligands: ACT,M6P ; X-RAY DIFFRACTION 2.70Å

e7kmaB1[B:107-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ligands: M6P ; X-RAY DIFFRACTION 2.70Å

e7kmaD1[D:107-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ligands: M6P ; X-RAY DIFFRACTION 2.70Å

e7kmaE1[E:107-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ligands: M6P ; X-RAY DIFFRACTION 2.70Å

e7kmaF1[F:107-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ligands: M6P ; X-RAY DIFFRACTION 2.70Å

e7kmaG1[G:107-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ligands: M6P ; X-RAY DIFFRACTION 2.70Å

e7kmaH1[H:107-306] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ligands: M6P ; X-RAY DIFFRACTION 2.70Å

e7kmfC1[C:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7kmfH1[H:107-304] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ligands: F6P ; ELECTRON MICROSCOPY

e7f64A1[A:107-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7f64B1[B:107-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7f64C1[C:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7f64D1[D:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7f66A1[A:107-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7f66B1[B:107-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7f66C1[C:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7f66D1[D:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7f67A1[A:107-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7f67B1[B:107-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7f67C1[C:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7f67D1[D:146-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7rloC1[C:146-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7rloD1[D:146-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7rloG1[G:107-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7rloH1[H:107-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7vlkA1[A:107-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7vlkB1[B:107-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7vlkC1[C:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7vlkD1[D:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7rloE2[E:316-519] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7f66G2[G:316-521] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7f64G2[G:316-521] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7kmfF2[F:316-520] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7kmfE1[E:316-520] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7rloF2[F:316-519] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7f64H2[H:316-521] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7f66H2[H:316-520] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7f67G2[G:316-521] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7f67H1[H:316-520] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7vlkG2[G:316-521] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7vlkH2[H:316-521] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7trjG1[G:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7trjH2[H:106-305] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit alpha ; ELECTRON MICROSCOPY

e7trjE2[E:316-519] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7trjF1[F:316-519] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit delta ; ELECTRON MICROSCOPY

e7trjD1[D:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

e7trjC1[C:147-351] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Translation initiation factor eIF-2B subunit beta ; ELECTRON MICROSCOPY

Previous

e2a0uA1[A:158-383] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

INITIATION FACTOR 2B ; ligands: SO4 ; X-RAY DIFFRACTION 2.1Å

e1vb5A1[A:95-275] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

translation initiation factor eIF-2B ; X-RAY DIFFRACTION 2.2Å

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