Structural Classification of Proteins

Fold: all-alpha NTP pyrophosphatases

: multihelical: dimeric 4-helical bundle surrounded by other helices; oligomerizes further in a tetramer

Lineage:

Root: scop
Class: All alpha proteins [46456]
Fold: all-alpha NTP pyrophosphatases [101385]
multihelical: dimeric 4-helical bundle surrounded by other helices; oligomerizes further in a tetramer

Superfamilies:

all-alpha NTP pyrophosphatases [101386] (4)
basic module consist of 5 active site-forming helices; four from one subunit/structural repeat; the fifth from the other subunit/repeat
uperfamily
1. MazG-like [116993] (3)
  Pfam 03819
  1. Hypothetical protein SSo12199 (SSo3215) [116994]
    1. Sulfolobus solfataricus [TaxId: 2287] [116995] (1)
      SQ Q97U11
  2. Hypothetical protein YpjD [140790]
    1. Bacillus subtilis [TaxId: 1423] [140791] (1)
      SQ P42979 1-98
  3. XTP3-transactivated gene A protein homolog RS21-C6 [140792]
    confirmed prediction of the m5dCTPase activity
    1. Mouse (Mus musculus) [TaxId: 10090] [140793] (5)
      SQ Q9QY93 22-134
2. AF0060-like [140794] (1)
  consists of a single member with an orphan sequence; "circular permutation" of putative active site residues: the catalytic lysine resides in the N-terminal helix instead of the missing in this family C-terminal helix; probable biological unit is a tertramer, distinct from the MazG family tetramer
  1. Hypothetical protein AF0060 [140795]
    SQ O30176 1-84
    1. Archaeoglobus fulgidus [TaxId: 2234] [140796] (1)
3. Type II deoxyuridine triphosphatase [101387] (2)
  one subunit comprises two degenerate structural repeats, organised into the "rigid" and "mobile" subdomains
  1. Type II deoxyuridine triphosphatase [101388]
    1. Trypanosoma cruzi [TaxId: 5693] [101389] (2)
    2. Campylobacter jejuni [TaxId: 197] [109960] (2)
      SQ Q9PMK9
4. HisE-like (PRA-PH) [140797] (5)
  Pfam 01503
  1. Phosphoribosyl-ATP pyrophosphatase HisE [140798]
    1. Streptomyces coelicolor [TaxId: 1902] [140799] (8)
      SQ Q9EWK0 4-91
    2. Chromobacterium violaceum [TaxId: 536] [140800] (12)
      SQ Q7P0E6 4-94
    3. Mycobacterium tuberculosis [TaxId: 1773] [140801] (1)
      SQ O33257 7-93
    4. Bacillus cereus [TaxId: 1396] [140802] (4)
      SQ Q81G00 4-95
    5. Mycobacterium tuberculosis H37Rv [TaxId: 83332] [158761] (4)