Fold: Flavodoxin-like

3 layers, a/b/a; parallel beta-sheet of 5 strand, order 21345

Lineage:

1. Root: scop
2. Class: Alpha and beta proteins (a/b) [51349]
   Mainly parallel beta sheets (beta-alpha-beta units)
3. Fold: Flavodoxin-like [52171]
   3 layers, a/b/a; parallel beta-sheet of 5 strand, order 21345

Superfamilies:

1. CheY-like [52172] (7)
   uperfamily
   1. CheY-related [52173] (32)
   2. Receiver domain of the ethylene receptor [52194] (1)
   3. Positive regulator of the amidase operon AmiR [52197] (1)
   4. Ornithine decarboxylase N-terminal "wing" domain [52252] (1)
   5. N-terminal domain of the circadian clock protein KaiA [82344] (1)
      lacks canonical receiver domains features
   6. RcsC linker domain-like [142037] (1)
      PfamB 016190; probable rudiment CheY-like domain; precedes the C-terminal CheY-related domain of similar structure
   7. AF1403 C-terminal domain-like [142040] (1)
2. Toll/Interleukin receptor TIR domain [52200] (1)
   uperfamily
   1. Toll/Interleukin receptor TIR domain [52201] (2)
3. Hypothetical protein MTH538 [52206] (1)
   uperfamily
   1. Hypothetical protein MTH538 [52207] (1)
4. Succinyl-CoA synthetase domains [52210] (1)
   uperfamily
   1. Succinyl-CoA synthetase domains [52211] (6)
      contain additional N-terminal strand "0", antiparallel to strand 2
5. Flavoproteins [52218] (8)
   uperfamily
   1. Flavodoxin-related [52219] (13)
      binds FMN
   2. Cytochrome p450 reductase N-terminal domain-like [52231] (4)
   3. Quinone reductase [52235] (6)
      binds FAD
   4. Hypothetical protein SP1951 [102234] (1)
   5. Hypothetical protein YwqN [102237] (1)
   6. NADPH-dependent FMN reductase [89590] (4)
      Pfam 03358
   7. Flavoprotein NrdI [110477] (1)
   8. WrbA-like [117474] (3)
6. Cobalamin (vitamin B12)-binding domain [52242] (1)
   uperfamily
   1. Cobalamin (vitamin B12)-binding domain [52243] (6)
7. N5-CAIR mutase (phosphoribosylaminoimidazole carboxylase, PurE) [52255] (1)
   uperfamily
   1. N5-CAIR mutase (phosphoribosylaminoimidazole carboxylase, PurE) [52256] (4)
8. SGNH hydrolase [52266] (9)
   uperfamily
   1. Esterase [52267] (1)
   2. Esterase domain of haemagglutinin-esterase-fusion glycoprotein HEF1 [52270] (1)
   3. Acetylhydrolase [52273] (3)
   4. Rhamnogalacturonan acetylesterase [52276] (1)
   5. TAP-like [89594] (2)
   6. Hypothetical protein alr1529 [102240] (1)
   7. Putative acetylxylan esterase-like [142058] (2)
      Pfam 03629 (DUF303); contains a characteristic zinc(less) finger-like insertion after strand 1; lacks the conserved in other families Asn residue
   8. YxiM C-terminal domain-like [159482] (1)
      subfamily of Pfam 00657
   9. BT2961-like [159485] (2)
      PfamB 005894;homotrimeric assembly
9. Beta-D-glucan exohydrolase, C-terminal domain [52279] (1)
   uperfamily
   1. Beta-D-glucan exohydrolase, C-terminal domain [52280] (1)
10. Formate/glycerate dehydrogenase catalytic domain-like [52283] (3)
    uperfamily
    1. Formate/glycerate dehydrogenases, substrate-binding domain [52284] (9)
       this domain is interrupted by the Rossmann-fold domain
    2. L-alanine dehydrogenase-like [52297] (2)
    3. S-adenosylhomocystein hydrolase [52300] (3)
11. Type II 3-dehydroquinate dehydratase [52304] (1)
    uperfamily
    1. Type II 3-dehydroquinate dehydratase [52305] (5)
12. N-(deoxy)ribosyltransferase-like [52309] (3)
    there are similar active site architectures as well as the catalytic mechanisms of functionally characterised members
    uperfamily
    1. N-deoxyribosyltransferase [52310] (3)
    2. Hypothetical protein PA1492 [110461] (1)
       lacks the last strand; monomer; predicted deoxyribosyltransferase activity
    3. ADP ribosyl cyclase-like [56630] (3)
       contains extra N-terminal all-alpha subdomain
13. Ribosomal protein S2 [52313] (1)
    fold elaborated with additional structures
    uperfamily
    1. Ribosomal protein S2 [52314] (3)
14. Precorrin-8X methylmutase CbiC/CobH [63965] (1)
    fold elaborated with additional structures
    uperfamily
    1. Precorrin-8X methylmutase CbiC/CobH [63966] (3)
15. Class I glutamine amidotransferase-like [52317] (9)
    conserved positions of the oxyanion hole and catalytic nucleophile; different constituent families contain different additional structures
    uperfamily
    1. Class I glutamine amidotransferases (GAT) [52318] (18)
       contains a catalytic Cys-His-Glu triad
    2. A4 beta-galactosidase middle domain [82351] (1)
       probable non-catalytic branch of the class I GAT family; overall fold is very similar but the active site is not conserved
    3. DJ-1/PfpI [52325] (9)
       contains a catalytic triad or dyad different from the class I GAT triad
    4. Catalase, C-terminal domain [52328] (2)
    5. Aspartyl dipeptidase PepE [52331] (1)
       probable circular permutation in the common core; contains a catalytic Ser-His-Glu triad
    6. ThuA-like [110486] (1)
       Pfam 06283; overall fold is very similar the class I GAT family but the putative active site has a different structure
    7. LD-carboxypeptidase A N-terminal domain-like [142074] (1)
       N-terminal half of Pfam 02016
    8. HTS-like [142077] (1)
       Pfam 04204
    9. STM3548-like [159492] (1)
       Pfam 07090; DUF1355

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