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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

X: Cytidine deaminase-like
H: Cytidine deaminase-like
T: Cytidine deaminase-like
F: JAB

PF01398 CL0366

Representatives:

e5cw3A1[A:3-162] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BRCA1/BRCA2-containing complex subunit 3 ; ligands: ZN ; X-RAY DIFFRACTION 2.550Å

e4d10E1[E:24-250] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 SIGNALOSOME COMPLEX SUBUNIT 5 ; ligands: ZN ; X-RAY DIFFRACTION 3.80Å

e3j7jF1[F:89-257] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e8h3aF1[F:29-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; ELECTRON MICROSCOPY

e8h3fF1[F:29-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; ELECTRON MICROSCOPY

e8h3aE2[E:24-250] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 5 ; ligands: ZN ; ELECTRON MICROSCOPY

e8h3fE1[E:24-250] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 5 ; ligands: ZN ; ELECTRON MICROSCOPY

e3rzvA1[A:246-424] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

STAM-binding protein ; ligands: ZN ; X-RAY DIFFRACTION 1.67Å

e2znrA1[A:259-436] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease ; ligands: EDO,PR,ZN ; X-RAY DIFFRACTION 1.20Å

e2znvA1[A:265-436] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease ; ligands: EDO,ZN ; X-RAY DIFFRACTION 1.60Å

e2znvD1[D:265-436] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease ; ligands: EDO,ZN ; X-RAY DIFFRACTION 1.60Å

e3rzuA1[A:249-424] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

STAM-BINDING PROTEIN ; ligands: ZN ; X-RAY DIFFRACTION 2.5Å

e3rzuB1[B:249-424] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

STAM-BINDING PROTEIN ; ligands: ZN ; X-RAY DIFFRACTION 2.5Å

e3rzuC1[C:248-424] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

STAM-BINDING PROTEIN ; ligands: ZN ; X-RAY DIFFRACTION 2.5Å

e3rzuD1[D:249-424] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

STAM-BINDING PROTEIN ; ligands: ZN ; X-RAY DIFFRACTION 2.5Å

e3rzuE1[E:252-424] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

STAM-BINDING PROTEIN ; ligands: ZN ; X-RAY DIFFRACTION 2.5Å

e3rzuF1[F:252-424] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

STAM-BINDING PROTEIN ; ligands: ZN ; X-RAY DIFFRACTION 2.5Å

e3rzuG1[G:252-424] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

STAM-BINDING PROTEIN ; ligands: ZN ; X-RAY DIFFRACTION 2.5Å

e4e0qA2[A:51-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 SIGNALOSOME COMPLEX SUBUNIT 6 ; X-RAY DIFFRACTION 2.5Å

e4e0qB2[B:51-176] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 SIGNALOSOME COMPLEX SUBUNIT 6 ; X-RAY DIFFRACTION 2.5Å

e4jxeA1[A:247-434] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-LIKE PROTEASE SST2 ; ligands: EDO,ZN ; X-RAY DIFFRACTION 1.45Å

e4jxeB1[B:248-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-LIKE PROTEASE SST2 ; ligands: EDO,TRS,ZN ; X-RAY DIFFRACTION 1.45Å

e4k1rA1[A:247-435] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease sst2 ; ligands: CL,EDO,ZN ; X-RAY DIFFRACTION 1.63Å

e4k1rC1[C:247-435] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease sst2 ; ligands: CL,EDO,ZN ; X-RAY DIFFRACTION 1.63Å

e4ms7B1[B:247-434] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-LIKE PROTEASE SST2 ; ligands: EDO,ZN ; X-RAY DIFFRACTION 1.67Å

e4msjB1[B:247-434] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-LIKE PROTEASE SST2 ; ligands: EDO,GLY,ZN ; X-RAY DIFFRACTION 1.8Å

e4msqA1[A:249-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease sst2 ; ligands: EDO,ZN ; X-RAY DIFFRACTION 1.97Å

e4ms7A1[A:248-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-LIKE PROTEASE SST2 ; ligands: EDO,TRS,ZN ; X-RAY DIFFRACTION 1.67Å

e4msdA1[A:249-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-LIKE PROTEASE SST2 ; ligands: DTT,EDO,ZN ; X-RAY DIFFRACTION 1.9Å

e4msdB1[B:249-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-LIKE PROTEASE SST2 ; ligands: EDO,ZN ; X-RAY DIFFRACTION 1.9Å

e4msjA1[A:244-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-LIKE PROTEASE SST2 ; ligands: EDO,GLY,PO4,ZN ; X-RAY DIFFRACTION 1.8Å

e4msjC1[C:247-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-LIKE PROTEASE SST2 ; ligands: EDO,GLY,PO4,ZN ; X-RAY DIFFRACTION 1.8Å

e4msmA1[A:249-434] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease sst2 ; ligands: EDO,PO4,ZN ; X-RAY DIFFRACTION 1.74Å

e4msmC1[C:248-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease sst2 ; ligands: EDO,ZN ; X-RAY DIFFRACTION 1.74Å

e4msqC1[C:248-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease sst2 ; ligands: EDO,PO4,ZN ; X-RAY DIFFRACTION 1.97Å

e4pqtA1[A:249-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-LIKE PROTEASE SST2 ; ligands: EDO,ZN ; X-RAY DIFFRACTION 2.05Å

e4qftA1[A:38-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; X-RAY DIFFRACTION 1.76Å

e4nqlA1[A:248-434] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease sst2 ; ligands: EDO,ZN ; X-RAY DIFFRACTION 2.30Å

e4r14A1[A:39-191] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; ligands: HG ; X-RAY DIFFRACTION 2.6Å

e4r14B1[B:39-191] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; ligands: HG ; X-RAY DIFFRACTION 2.6Å

e5a5tF1[F:106-280] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

EUKARYOTIC TRANSLATION INITIATION FACTOR 3 SUBUNIT F ; ELECTRON MICROSCOPY

e5cw6A1[A:1-164] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DrBRCC36 ; ligands: ZN ; X-RAY DIFFRACTION 3.1930Å

e4zd4B1[B:249-433] Image Pymol Jmol Links: PDB, SCOP, CATH

AMSH-like protease sst2 ; ligands: DTT,EDO,ZN ; X-RAY DIFFRACTION 1.63Å

e4zd5A1[A:249-433] Image Pymol Jmol Links: PDB, SCOP, CATH

AMSH-like protease sst2 ; ligands: EDO,ZN ; X-RAY DIFFRACTION 2.07Å

e4zd5B1[B:249-433] Image Pymol Jmol Links: PDB, SCOP, CATH

AMSH-like protease sst2 ; ligands: EDO,ZN ; X-RAY DIFFRACTION 2.07Å

e4zfrA1[A:249-433] Image Pymol Jmol Links: PDB, SCOP, CATH

AMSH-like protease sst2 ; ligands: EDO,ZN ; X-RAY DIFFRACTION 1.719Å

e4zftA1[A:249-433] Image Pymol Jmol Links: PDB, SCOP, CATH

AMSH-like protease sst2 ; ligands: EDO,ZN ; X-RAY DIFFRACTION 2.30Å

e4zftC1[C:251-433] Image Pymol Jmol Links: PDB, SCOP, CATH

AMSH-like protease sst2 ; ligands: EDO,ZN ; X-RAY DIFFRACTION 2.30Å

e4zd4A1[A:249-433] Image Pymol Jmol Links: PDB, SCOP, CATH

AMSH-like protease sst2 ; ligands: EDO,TRS,ZN ; X-RAY DIFFRACTION 1.63Å

e4wsnF2[F:29-212] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; X-RAY DIFFRACTION 5.500Å

e4wsnN2[N:29-212] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; X-RAY DIFFRACTION 5.500Å

e4wsnV1[V:29-212] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; X-RAY DIFFRACTION 5.500Å

e4wsnd1[d:29-212] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; X-RAY DIFFRACTION 5.500Å

e4wsnl2[l:29-212] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; X-RAY DIFFRACTION 5.500Å

e4wsnt1[t:29-212] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; X-RAY DIFFRACTION 5.500Å

e6fec42[4:106-280] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e6fjuA1[A:0-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit N11-like protein ; ligands: SO4,ZN ; X-RAY DIFFRACTION 1.65Å

e6fjuB1[B:0-174] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit N11-like protein ; ligands: ZN ; X-RAY DIFFRACTION 1.65Å

e6fjvA1[A:-3-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit N11-like protein ; ligands: SO4 ; X-RAY DIFFRACTION 1.35Å

e6fnnA1[A:-3-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit N11-like protein ; ligands: SO4,ZN ; X-RAY DIFFRACTION 1.85Å

e6fnnB1[B:-3-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit N11-like protein ; ligands: SO4,ZN ; X-RAY DIFFRACTION 1.85Å

e6fnoA1[A:-3-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit N11-like protein ; ligands: SO4,ZN ; X-RAY DIFFRACTION 1.95Å

e6fnoB1[B:-3-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit N11-like protein ; ligands: SO4,ZN ; X-RAY DIFFRACTION 1.95Å

e6r8fA2[A:8-43,A:69-176,A:210-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Lys-63-specific deubiquitinase BRCC36 ; ligands: ZN ; ELECTRON MICROSCOPY

e6r8fC1[C:8-43,C:69-176,C:210-221] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Lys-63-specific deubiquitinase BRCC36 ; ligands: ZN ; ELECTRON MICROSCOPY

e6gvwB1[B:8-46,B:69-196] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Lys-63-specific deubiquitinase BRCC36 ; ligands: ZN ; X-RAY DIFFRACTION 3.75Å

e6gvwG1[G:8-43,G:69-196] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Lys-63-specific deubiquitinase BRCC36 ; ligands: ZN ; X-RAY DIFFRACTION 3.75Å

e6r6hF2[F:29-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; ELECTRON MICROSCOPY

e6r7fF1[F:29-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; ELECTRON MICROSCOPY

e6r7hF2[F:29-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; ELECTRON MICROSCOPY

e6r7iF2[F:29-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; ELECTRON MICROSCOPY

e6yamq2[q:86-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e6w2s42[4:106-280] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e6w2t41[4:106-280] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e6zonF2[F:89-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e6zp4F1[F:89-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e7a09F1[F:89-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e6ybd41[4:89-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e6zmw42[4:89-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e6zvjF2[F:89-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e7aseG1[G:7-210] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

JAB_MPN domain-containing protein ; ELECTRON MICROSCOPY

e7lm3B1[B:248-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease sst2 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 2.700Å

e7lm3A1[A:249-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease sst2 ; ligands: PO4,ZN ; X-RAY DIFFRACTION 2.700Å

e7l97A1[A:262-436] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

AMSH-like protease ; ligands: EDO,SO4,UNX,ZN ; X-RAY DIFFRACTION 2.000Å

e7qp642[4:89-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e7qp741[4:89-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e8h38F1[F:29-212] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

COP9 signalosome complex subunit 6 ; ELECTRON MICROSCOPY

e8pplI41[I4:90-260] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e4c0vV1[V:17-219] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3j8bF1[F:89-257] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Eukaryotic translation initiation factor 3 subunit F ; ELECTRON MICROSCOPY

e3jckE1[E:3-163] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S proteasome regulatory subunit RPN8 ; ELECTRON MICROSCOPY

e3jckG1[G:24-205] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ubiquitin carboxyl-terminal hydrolase RPN11 ; ligands: ZN ; ELECTRON MICROSCOPY

e4cr2U2[U:5-176] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

26S PROTEASOME REGULATORY SUBUNIT RPN8 ; 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.

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