Structural Classification of Proteins

Fold: Double-split beta-barrel

: pseudobarrel; capped on both ends by alpha-helices

Lineage:

Root: scop
Class: All beta proteins [48724]
Fold: Double-split beta-barrel [89446]
pseudobarrel; capped on both ends by alpha-helices

Superfamilies:

AbrB/MazE/MraZ-like [89447] (3)
members of this superfamily are known or predicted to have DNA-binding function
uperfamily
1. Kis/PemI addiction antidote [89448] (1)
  forms intertwined homodimer
  1. MazE [89449]
    1. Escherichia coli [TaxId: 562] [89450] (2)
2. AbrB N-terminal domain-like [54743] (2)
  dimeric fold similar to MazE; the DNA-binding site is similar to the conserved surface site of MraZ
  1. Transcription-state regulator AbrB, the N-terminal DNA recognition domain [54744]
    1. Bacillus subtilis [TaxId: 1423] [54745] (6)
  2. Putative transition state regulator ABH [159358]
    1. Bacillus subtilis [TaxId: 1423] [159359] (2)
      SQ P39758 1-54
3. Hypothetical protein MraZ [102020] (1)
  duplication: contains two interlocking repeats of similar sequence arranged as subunits in the MazE homodimer
  1. Hypothetical protein MraZ [102021]
    1. Mycoplasma pneumoniae [TaxId: 2104] [102022] (3)
AF2212/PG0164-like [141694] (2)
six-stranded barrel, topologically similar to the Reductase/isomerase/elongation factor domain fold (scop_cf 50412)
uperfamily
1. PG0164-like [141695] (1)
  duplication: comprises two intertwinned beta(2)-alpha-beta structural repeats
  1. Hypothetical protein PG0164 [141696]
    1. Porphyromonas gingivalis [TaxId: 837] [141697] (1)
      SQ Q7MXL1 20-104
2. AF2212-like [159360] (1)
  Pfam 01954; DUF104; intertwinned homodimer of beta(2)-loop-beta subunits; the capping helices are replaced with extended loops
  1. Uncharacterized protein AF2212 [159361]
    1. Archaeoglobus fulgidus [TaxId: 2234] [159362] (2)
      SQ O28071 1-61