Structural Classification of Proteins
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Fold: DNA clamp

contains two helices and two beta sheets
duplication: fold has internal pseudo two-fold symmetry

Lineage:

  1. Root: scop
  2. Class: Alpha and beta proteins (a+b) [53931]
    Mainly antiparallel beta sheets (segregated alpha and beta regions)
  3. Fold: DNA clamp [55978]
    contains two helices and two beta sheets
    duplication: fold has internal pseudo two-fold symmetry

Superfamilies:

  1. DNA clamp [55979] (2)
    link to SUPERFAMILY database - Superfamily
    1. DNA polymerase III, beta subunit [55980] (2)
      duplication: consists of three domains of this fold
      1. DNA polymerase III, beta subunit [55981]
        1. Escherichia coli [TaxId: 562] [55982] (30) picpic
          SQ P00583
        2. Thermotoga maritima [TaxId: 2336] [118108] (1) picpic
          SQ Q9WYA0
    2. DNA polymerase processivity factor [55983] (9)
      duplication: consists of two domains of this fold
      1. gp45 sliding clamp [55984]
        1. Bacteriophage RB69 [TaxId: 12353] [55985] (2) picpic
        2. Bacteriophage T4 [TaxId: 10665] [55986] (1) picpic
      2. UL42 [55987]
        1. Human herpesvirus type 1 [TaxId: 10298] [55988] (1) picpic
      3. Proliferating cell nuclear antigen (PCNA) [55989]
        1. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [55990] (5) picpic
          SQ P15873
        2. Human (Homo sapiens) [TaxId: 9606] [55991] (31) picpic
          SQ P12004
        3. Archaeon Pyrococcus furiosus [TaxId: 2261] [55992] (4) picpic
        4. Archaeon Archaeoglobus fulgidus [TaxId: 2234] [103254] (3) picpic
        5. Archaeon Sulfolobus tokodaii [TaxId: 111955] [111175] (1) picpic
          SQ Q975N2
      4. UL44 [111176]
        1. Human cytomegalovirus, HHV-5 [TaxId: 10359] [111177] (3) picpic
          SQ P16790 1-290
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MRC site Generated from scop database 1.75 with scopm 1.101 on Wed Jun 3 10:42:06 2009
Copyright © 1994-2009 The scop authors / scop@mrc-lmb.cam.ac.uk