Structural Classification of Proteins

Superfamily: C-terminal effector domain of the bipartite response regulators

: binds to DNA and RNA polymerase; the N-terminal, receiver domain belongs to the CheY family
uperfamily

Lineage:

Root: scop
Class: All alpha proteins [46456]
Fold: DNA/RNA-binding 3-helical bundle [46688]
core: 3-helices; bundle, closed or partly opened, right-handed twist; up-and down
Superfamily: C-terminal effector domain of the bipartite response regulators [46894]
binds to DNA and RNA polymerase; the N-terminal, receiver domain belongs to the CheY family
uperfamily

Families:

PhoB-like [46895] (6)
contains 4-stranded meander beta-sheet in the N-terminal extension
1. OmpR [46896]
  1. Escherichia coli [TaxId: 562] [46897] (3)
    1. 1opc
      1. chain a [16231]
    2. 1odd
      1. chain a [16232]
    3. 2jpb
      automatically matched to d1odd__
      1. region a:136-235 [138360]
2. PhoB [46898]
  1. Thermotoga maritima [TaxId: 2336] [68972] (1)
    1. 1kgs
      complexed with scn
      1. region a:124-225 [68596]
  2. Escherichia coli [TaxId: 562] [46899] (4)
    1. 1gxq
      1. chain a [70721]
    2. 1gxp
      1. chain a [70717]
      2. chain b [70718]
      3. chain e [70719]
      4. chain f [70720]
    3. 2z33
      automatically matched to d1gxqa_
      1. region a:1-104 [153956]
    4. 1qqi
      1. chain a [16233]
3. Response regulator DrrB [88988]
  1. Thermotoga maritima [TaxId: 2336] [88989] (1)
    1. 1p2f
      complexed with mse
      1. region a:121-217 [87720]
4. Probable regulatory protein EmbR [140313]
  N-terminal domain, unlike the other members
  1. Mycobacterium tuberculosis [TaxId: 1773] [140314] (3)
    SQ P66799 10-104
    1. 2ff4
      automatically matched to 2FEZ A:10-104
      1. region a:10-104 [133367]
    2. 2ff4
      automatically matched to 2FEZ A:10-104
      1. region b:10-104 [133370]
    3. 2fez
      1. region a:10-104 [133357]
5. Transcriptional regulatory protein PrrA [140315]
  1. Mycobacterium tuberculosis [TaxId: 1773] [140316] (4)
    SQ P0A5Z6 128-233
    1. 1ys7
      automatically matched to 1YS6 A:128-233
      complexed with act, gol, mg, trs
      1. region a:128-233 [123961]
    2. 1ys7
      automatically matched to 1YS6 A:128-233
      complexed with act, gol, mg, trs
      1. region b:128-233 [123963]
    3. 1ys6
      complexed with ca, gol
      1. region a:128-233 [123957]
    4. 1ys6
      automatically matched to 1YS6 A:128-233
      complexed with ca, gol
      1. region b:128-233 [123959]
GerE-like (LuxR/UhpA family of transcriptional regulators) [46900] (5)
contains additional, fourth helix in the C-terminal extension
1. Germination protein GerE [63488]
  single-domain protein homologous to the C-terminal domain of NarL
  1. Bacillus subtilis [TaxId: 1423] [63489] (1)
    1. 1fse
      complexed with gol, sul
      1. chain a [60000]
      2. chain b [60001]
      3. chain c [60002]
      4. chain d [60003]
      5. chain e [60004]
      6. chain f [60005]
2. Quorum-sensing transcription factor TraR, C-terminal domain [74690]
  1. Agrobacterium tumefaciens [TaxId: 358] [74691] (2)
    1. 1l3l
      complexed with lae, mse
      1. region a:170-234 [73541]
      2. region b:170-234 [73543]
      3. region c:172-234 [73545]
      4. region d:172-234 [73547]
    2. 1h0m
      complexed with hsl, mse, ooa
      1. region a:170-234 [76442]
      2. region b:170-234 [76444]
      3. region c:171-234 [76446]
      4. region d:170-234 [76448]
3. Nitrate/nitrite response regulator (NarL) [46901]
  1. Escherichia coli [TaxId: 562] [46902] (11)
    1. 1a04
      1. region a:150-216 [16234]
      2. region b:150-216 [16235]
    2. 1je8
      C-domain only
      complexed with mse, so4
      1. chain a [77108]
      2. chain b [77109]
      3. chain e [77110]
      4. chain f [77111]
    3. 1rnl
      complexed with gol, pt
      1. region a:155-216 [16236]
    4. 1zg5
      automatically matched to d1a04a1
      complexed with so4
      1. region a:151-216 [125010]
    5. 1zg5
      automatically matched to d1a04a1
      complexed with so4
      1. region b:151-216 [125011]
    6. 1zg5
      automatically matched to d1a04a1
      complexed with so4
      1. region e:151-216 [125012]
    7. 1zg5
      automatically matched to d1a04a1
      complexed with so4
      1. region f:151-216 [125013]
    8. 1zg1
      automatically matched to d1a04a1
      complexed with so4
      1. region a:151-216 [125005]
    9. 1zg1
      automatically matched to d1a04a1
      complexed with so4
      1. region b:151-216 [125006]
    10. 1zg1
      automatically matched to d1a04a1
      complexed with so4
      1. region e:151-216 [125007]
    11. 1zg1
      automatically matched to d1a04a1
      complexed with so4
      1. region f:151-216 [125008]
4. Transcriptional regulator RcsB [88990]
  1. Erwinia amylovora [TaxId: 552] [88991] (1)
    1. 1p4w
      DNA-binding domain only
      1. chain a [87783]
5. Response regulatory protein StyR, C-terminal domain [140317]
  1. Pseudomonas fluorescens [TaxId: 294] [140318] (2)
    SQ O30989 131-200
    1. 1yio
      complexed with hg, mg
      1. region a:131-200 [123326]
    2. 1zn2
      automatically matched to 1YIO A:131-200
      complexed with mg
      1. region a:131-200 [125371]
Spo0A [46903] (2)
elaborated with additional helices
1. Spo0A [46904]
  1. Bacillus stearothermophilus [TaxId: 1422] [46905] (1)
    1. 1fc3
      CASP4
      1. chain a [16237]
      2. chain b [16238]
      3. chain c [16239]
  2. Bacillus subtilis [TaxId: 1423] [74692] (1)
    1. 1lq1
      1. chain a [74179]
      2. chain b [74180]
      3. chain c [74181]
      4. chain d [74182]