Structural Classification of Proteins

Fold: HD-domain/PDEase-like

: multihelical; consists of two different alpha-helical bundles

Lineage:

Root: scop
Class: All alpha proteins [46456]
Fold: HD-domain/PDEase-like [109603]
multihelical; consists of two different alpha-helical bundles

Superfamilies:

HD-domain/PDEase-like [109604] (5)
uperfamily
1. HD domain [101340] (13)
  Pfam 01966; metal dependent phosphohydrolases
  1. Stringent response-like protein RelA N-terminal domain [101341]
    1. Streptococcus equisimilis [TaxId: 119602] [101342] (1)
  2. 5'-nucleotidase YfbR [116969]
    1. Escherichia coli [TaxId: 562] [116970] (2)
      SQ P76491
      Structural genomics target
  3. Oxetanocin-like protein PF0395 [116971]
    similar fold and oligomeric structure to 5'-nucleotidase YfbR
    1. Pyrococcus furiosus [TaxId: 2261] [116972] (1)
      SQ Q8U3R1
  4. Hypothetical protein AF1432 [140763]
    1. Archaeon Archaeoglobus fulgidus [TaxId: 2234] [140764] (4)
      SQ O28840 7-172! SQ O28840 7-173
  5. Hypothetical protein aq_1910 [140765]
    elaborated with additional structures in C-terminal extension
    1. Aquifex aeolicus [TaxId: 63363] [140766] (2)
      SQ O67745 1-369
  6. Hypothetical protein EF1143 [140767]
    Probable ortholog of aq_1910
    1. Enterococcus faecalis [TaxId: 1351] [140768] (2)
      SQ Q836G9 1-453
  7. Predicted hydrolase mes0020 [158719]
    1. Uncultured thermotogales bacterium [TaxId: 221214] [158720] (1)
      SQ Q1EM40 1-217
  8. Uncharacterized protein Lin1889 [158721]
    1. Listeria innocua [TaxId: 1642] [158722] (1)
      SQ Q92AN1 1-201
  9. Uncharacterized protein SE1688 [158723]
    1. Staphylococcus epidermidis [TaxId: 1282] [158724] (2)
      SQ Q8CRP0 1-216
  10. Hypothetical protein Atu1052 [158725]
    1. Agrobacterium tumefaciens [TaxId: 358] [158726] (4)
      SQ Q8UGI5 6-205
  11. Uncharacterized protein BH2835 [158727]
    1. Bacillus halodurans [TaxId: 86665] [158728] (4)
      SQ Q9K916 2-213
  12. Uncharacterized protein LP2664 [158729]
    1. Lactobacillus plantarum [TaxId: 1590] [158730] (4)
      SQ Q88U62 1-215
  13. Uncharacterized protein BT9727_1981 [158731]
    1. Bacillus thuringiensis [TaxId: 1428] [158732] (2)
      SQ Q6HJG6 2-214
2. PDEase [48548] (6)
  Pfam 00233; multihelical; can be divided into three subdomains
  1. Catalytic domain of cyclic nucleotide phosphodiesterase 4b2b [48549]
    1. Human (Homo sapiens) [TaxId: 9606] [48550] (14)
      SQ Q07343 324-667
  2. Catalytic domain of cyclic nucleotide phosphodiesterase pde4d [89151]
    1. Human (Homo sapiens) [TaxId: 9606] [89152] (39)
      SQ Q08499 388-713
  3. cGMP-specific 3',5'-cyclic phosphodiesterase pde5a1-Ibmx [101439]
    1. Human (Homo sapiens) [TaxId: 9606] [101440] (18)
      SQ O76074 534-860
  4. cGMP-inhibited 3',5'-cyclic phosphodiesterase B, pde3b [101441]
    1. Human (Homo sapiens) [TaxId: 9606] [101442] (2)
  5. High-affinity cGMP-specific 3',5'-cyclic phosphodiesterase 9A, PDE9A [109942]
    1. Human (Homo sapiens) [TaxId: 9606] [109943] (14)
      SQ O76083 241-566
  6. Catalytic domain of cyclic nucleotide phosphodiesterase 1b, PDE1B [109944]
    1. Human (Homo sapiens) [TaxId: 9606] [109945] (1)
      SQ Q01064 126-482
3. modified HD domain [116973] (1)
  retains the superfamily core fold but lacks the conserved metal-binding site
  1. Hypothetical protein Cj0248 [116974]
    1. Campylobacter jejuni [TaxId: 197] [116975] (1)
      SQ Q9PIP7
4. MioX-like [140769] (2)
  Pfam 05153; DUF706
  1. Myo-inositol oxygenase MioX [140770]
    1. Human (Homo sapiens) [TaxId: 9606] [140771] (2)
      SQ Q9UGB7 37-285
    2. Mouse (Mus musculus) [TaxId: 10090] [140772] (2)
      SQ Q9QXN5 28-285
5. Ppx associated domain [140773] (1)
  this domain is C-terminal to Ppx domain in some Exopolyphosphatases
  1. Exopolyphosphatase Ppx C-terminal domain [140774]
    1. Escherichia coli [TaxId: 562] [140775] (6)
      SQ P0AFL6 312-508