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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

X: Histone-like
H: Histone-related
T: AAA+ ATPase lid domain
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.

Representatives:

e4qosA1[A:165-257] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Psp operon transcriptional activator ; ligands: ADP,GOL ; X-RAY DIFFRACTION 1.42Å

e2fnaA3[A:207-283] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Conserved hypothetical protein ; ligands: ADP,EDO ; X-RAY DIFFRACTION 2.00Å

e6pb3A2[A:226-306] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Rhizobiales Sp. Pch2 ; X-RAY DIFFRACTION 2.048Å

e4xguA2[A:283-424] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Putative pachytene checkpoint protein 2 ; X-RAY DIFFRACTION 2.29Å

e4xguD3[D:322-422] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Putative pachytene checkpoint protein 2 ; X-RAY DIFFRACTION 2.29Å

e1ny5A1[A:309-384] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

transcriptional regulator (NtrC family) ; ligands: ADP,GOL,MG,PO4 ; X-RAY DIFFRACTION 2.4Å

e1l8qA2[A:242-289] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CHROMOSOMAL REPLICATION INITIATOR PROTEIN DNAA ; ligands: ADP ; X-RAY DIFFRACTION 2.7Å

e1sxjA2[A:479-547] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Activator 1 95 kDa subunit ; ligands: AGS ; X-RAY DIFFRACTION 2.85Å

e1sxjC6[C:168-232] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Activator 1 40 kDa subunit ; ligands: AGS ; X-RAY DIFFRACTION 2.85Å

e2xszA1[A:338-362] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RUVB-LIKE 1 ; X-RAY DIFFRACTION 3.00Å

e2xszB2[B:339-364] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RUVB-LIKE 1 ; X-RAY DIFFRACTION 3.00Å

e2xszC1[C:338-363] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RUVB-LIKE 1 ; X-RAY DIFFRACTION 3.00Å

e2xszE2[E:350-371] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RUVB-LIKE 2 ; X-RAY DIFFRACTION 3.00Å

e5vq9D3[D:321-430] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pachytene checkpoint protein 2 homolog ; X-RAY DIFFRACTION 3.02Å

e2z4rA3[A:263-335] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CHROMOSOMAL REPLICATION INITIATOR PROTEIN DNAA ; ligands: ADP ; X-RAY DIFFRACTION 3.05Å

e4kxfK2[K:299-382] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR FAMILY CARD DOMAIN-CONTAINING PROTEIN 4 ; ligands: ADP ; X-RAY DIFFRACTION 3.2Å

e4kxfB4[B:299-383] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR FAMILY CARD DOMAIN-CONTAINING PROTEIN 4 ; ligands: ADP ; X-RAY DIFFRACTION 3.2Å

e4kxfD4[D:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR FAMILY CARD DOMAIN-CONTAINING PROTEIN 4 ; ligands: ADP ; X-RAY DIFFRACTION 3.2Å

e4kxfF4[F:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR FAMILY CARD DOMAIN-CONTAINING PROTEIN 4 ; ligands: ADP ; X-RAY DIFFRACTION 3.2Å

e4kxfH9[H:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR FAMILY CARD DOMAIN-CONTAINING PROTEIN 4 ; ligands: ADP ; X-RAY DIFFRACTION 3.2Å

e4kxfL8[L:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR FAMILY CARD DOMAIN-CONTAINING PROTEIN 4 ; ligands: ADP ; X-RAY DIFFRACTION 3.2Å

e4kxfN9[N:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR FAMILY CARD DOMAIN-CONTAINING PROTEIN 4 ; ligands: ADP ; X-RAY DIFFRACTION 3.2Å

e4kxfP4[P:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR FAMILY CARD DOMAIN-CONTAINING PROTEIN 4 ; ligands: ADP ; X-RAY DIFFRACTION 3.2Å

e3jblK4[K:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e3jblA1[A:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e3jblB3[B:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e3jblC1[C:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e3jblD3[D:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e3jblE4[E:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e3jblF3[F:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e3jblG3[G:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e3jblH2[H:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e3jblI3[I:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e3jblJ5[J:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e6b5bB2[B:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e6b5bC3[C:299-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NLR family CARD domain-containing protein 4 ; ELECTRON MICROSCOPY

e5irmA2[A:427-505] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Uncharacterized protein ; ligands: ADP ; X-RAY DIFFRACTION 3.3Å

e4ai6A11[A:2923-3371] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLUTATHIONE S-TRANSFERASE CLASS-MU 26 KDA ISOZYME, DYNEIN HEAVY CHAIN CYTOPLASMIC ; ligands: ADP ; X-RAY DIFFRACTION 3.4Å

e4rh7A15[A:2812-2826,A:2847-2890,A:3195-3246] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Green fluorescent protein/Cytoplasmic dynein 2 heavy chain 1 ; ligands: ADP ; X-RAY DIFFRACTION 3.4Å

e1xxhF2[F:143-211] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

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

e5kzfJ4[J:343-506] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Proteasome-associated ATPase ; X-RAY DIFFRACTION 3.49Å

e3j67A9[A:2923-3402] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Dynein motor domain ; ELECTRON MICROSCOPY

e4v4lA3[A:290-360] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Apaf-1 related killer DARK ; ligands: DTP ; ELECTRON MICROSCOPY

e5fl8s12[s:2302-2418] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

e5gjqM4[M:421-439] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S protease regulatory subunit 6A ; ELECTRON MICROSCOPY

e6hv9B3[B:10-90] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DNA polymerase epsilon subunit B ; ELECTRON MICROSCOPY

e6xywBw1[Bw:429-479] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Mitochondrial 28S ribosomal protein S29-like protein ; ELECTRON MICROSCOPY

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

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