SCOP 1.65: Family c.55.3.5: DnaQ-like 3'-5' exonuclease

Lineage for Family c.55.3.5: DnaQ-like 3'-5' exonuclease

1. Root: SCOP 1.65

2. Class c: Alpha and beta proteins (a/b) [51349] (121 folds)

3. Fold c.55: Ribonuclease H-like motif [53066] (7 superfamilies)
   3 layers: a/b/a; mixed beta-sheet of 5 strands, order 32145; strand 2 is antiparallel to the rest

4. Superfamily c.55.3: Ribonuclease H-like [53098] (7 families)
   consists of one domain of this fold

5. Family c.55.3.5: DnaQ-like 3'-5' exonuclease [53118] (6 proteins)

Proteins:

1. Exonuclease domain of family B (archaeal and phage) DNA polymerases [53125] (6 species)
   elaborated with additional structures and the N-terminal subdomain
   the N-terminal subdomain of archaeal polymerases contains ferredoxin-like fold

   1. Species Archaeon Desulfurococcus tok [TaxId:108142] [53130] (2 PDB entries)

   2. Species Archaeon Pyrococcus kodakaraensis [TaxId:311400] [53131] (1 PDB entry)

   3. Species Archaeon Thermococcus gorgonarius [TaxId:71997] [53128] (1 PDB entry)

   4. Species Archaeon Thermococcus sp., 9on-7 [TaxId:35749] [53129] (1 PDB entry)

   5. Species Bacteriophage RB69 [TaxId:12353] [53127] (5 PDB entries)

   6. Species Bacteriophage T4 [TaxId:10665] [53126] (2 PDB entries)

2. Exonuclease domain of prokaryotic DNA polymerase [53119] (3 species)
   part of Klenow fragment, KF

   1. Species Bacillus stearothermophilus, newly identified strain as yet unnamed [TaxId:1422] [53122] (10 PDB entries)

   2. Species Escherichia coli [TaxId:562] [53120] (14 PDB entries)

   3. Species Thermus aquaticus [TaxId:271] [53121] (13 PDB entries)

3. Exonuclease domain of T7 DNA polymerase [53123] (1 species)

   • Species Bacteriophage T7 [TaxId:10760] [53124] (1 PDB entry)

4. Exonuclease I [53132] (1 species)
   also includes an alpha+beta domain with SH3-like like motif and non-globular C-terminal all-alpha region

   • Species Escherichia coli [TaxId:562] [53133] (1 PDB entry)

5. N-terminal exonuclease domain of the epsilon subunit of DNA polymerase III [82444] (1 species)

   • Species Escherichia coli [TaxId:562] [82445] (2 PDB entries)

6. Oligoribonuclease [89719] (1 species)

   • Species Haemophilus influenzae [TaxId:727] [89720] (1 PDB entry)
     HI1715

More info for Family c.55.3.5: DnaQ-like 3'-5' exonuclease

Timeline for Family c.55.3.5: DnaQ-like 3'-5' exonuclease:

• Family c.55.3.5: DnaQ-like 3'-5' exonuclease first appeared (with stable ids) in SCOP 1.55
  
• Family c.55.3.5: DnaQ-like 3'-5' exonuclease appears in SCOP 1.63
  
• Family c.55.3.5: DnaQ-like 3'-5' exonuclease appears in SCOP 1.67
  
• Family c.55.3.5: DnaQ-like 3'-5' exonuclease appears in the current release, SCOPe 2.07