Structural Classification of Proteins

Family: GTP cyclohydrolase I

Lineage:

Root: scop
Class: Alpha and beta proteins (a+b) [53931]
Mainly antiparallel beta sheets (segregated alpha and beta regions)
Fold: T-fold [55619]
beta(2)-alpha(2)-beta(2); 2 layers: alpha/beta; antiparallel sheet 1234
tunnel-shaped: its known members form wide oligomeric barrels different sizes
Superfamily: Tetrahydrobiopterin biosynthesis enzymes-like [55620]
bind purine or pterin in topologically similar sites between subunits
uperfamily
Family: GTP cyclohydrolase I [55621]

Protein Domains:

GTP cyclohydrolase I [55622]
beta-sheets of five subunits form a barrel, closed: n=20, S=20
1. Escherichia coli [TaxId: 562] [55623] (7)
  1. 1a8r
    complexed with gtp; mutant
    1. chain a [40587]
    2. chain b [40588]
    3. chain c [40589]
    4. chain d [40590]
    5. chain e [40591]
    6. chain f [40592]
    7. chain g [40593]
    8. chain h [40594]
    9. chain i [40595]
    10. chain j [40596]
    11. chain k [40597]
    12. chain l [40598]
    13. chain m [40599]
    14. chain n [40600]
    15. chain o [40601]
  2. 1gtp
    complexed with so4
    1. chain a [40632]
    2. chain b [40633]
    3. chain c [40634]
    4. chain d [40635]
    5. chain e [40636]
    6. chain f [40637]
    7. chain g [40638]
    8. chain h [40639]
    9. chain i [40640]
    10. chain j [40641]
    11. chain k [40642]
    12. chain l [40643]
    13. chain m [40644]
    14. chain n [40645]
    15. chain o [40646]
    16. chain p [40647]
    17. chain q [40648]
    18. chain r [40649]
    19. chain s [40650]
    20. chain t [40651]
  3. 1a9c
    complexed with gtp; mutant
    1. chain a [40602]
    2. chain b [40603]
    3. chain c [40604]
    4. chain d [40605]
    5. chain e [40606]
    6. chain f [40607]
    7. chain g [40608]
    8. chain h [40609]
    9. chain i [40610]
    10. chain j [40611]
    11. chain k [40612]
    12. chain l [40613]
    13. chain m [40614]
    14. chain n [40615]
    15. chain o [40616]
  4. 1fbx
    zinc-containing active form
    complexed with cl, zn
    1. chain a [40617]
    2. chain b [40618]
    3. chain c [40619]
    4. chain d [40620]
    5. chain e [40621]
    6. chain f [40622]
    7. chain g [40623]
    8. chain h [40624]
    9. chain i [40625]
    10. chain j [40626]
    11. chain k [40627]
    12. chain l [40628]
    13. chain m [40629]
    14. chain n [40630]
    15. chain o [40631]
  5. 1n3r
    complexed with gtp; mutant
    1. chain a [91568]
    2. chain b [91569]
    3. chain c [91570]
    4. chain d [91571]
    5. chain e [91572]
    6. chain f [91573]
    7. chain g [91574]
    8. chain h [91575]
    9. chain i [91576]
    10. chain j [91577]
    11. chain k [91578]
    12. chain l [91579]
    13. chain m [91580]
    14. chain n [91581]
    15. chain o [91582]
  6. 1n3s
    complexed with gtp; mutant
    1. chain a [91583]
    2. chain b [91584]
    3. chain c [91585]
    4. chain d [91586]
    5. chain e [91587]
    6. chain f [91588]
    7. chain g [91589]
    8. chain h [91590]
    9. chain i [91591]
    10. chain j [91592]
  7. 1n3t
    complexed with gtp; mutant
    1. chain a [91593]
    2. chain b [91594]
    3. chain c [91595]
    4. chain d [91596]
    5. chain e [91597]
    6. chain f [91598]
    7. chain g [91599]
    8. chain h [91600]
    9. chain i [91601]
    10. chain j [91602]
    11. chain k [91603]
    12. chain l [91604]
    13. chain m [91605]
    14. chain n [91606]
    15. chain o [91607]
2. Human (Homo sapiens) [TaxId: 9606] [55624] (1)
  1. 1fb1
    complexed with ipa, zn
    1. chain a [40652]
    2. chain b [40653]
    3. chain c [40654]
    4. chain d [40655]
    5. chain e [40656]
3. Rat (Rattus norvegicus) [TaxId: 10116] [69790] (3)
  SQ P22288
  1. 1wpl
    complexed with 3po, hbi, na, zn
    1. chain a [109472]
    2. chain b [109473]
    3. chain c [109474]
    4. chain d [109475]
    5. chain e [109476]
    6. chain f [109477]
    7. chain g [109478]
    8. chain h [109479]
    9. chain i [109480]
    10. chain j [109481]
  2. 1is8
    complexed with k, phe, zn
    1. chain a [66321]
    2. chain b [66322]
    3. chain c [66323]
    4. chain d [66324]
    5. chain e [66325]
    6. chain f [66326]
    7. chain g [66327]
    8. chain h [66328]
    9. chain i [66329]
    10. chain j [66330]
  3. 1is7
    complexed with k, phe
    1. chain a [66301]
    2. chain b [66302]
    3. chain c [66303]
    4. chain d [66304]
    5. chain e [66305]
    6. chain f [66306]
    7. chain g [66307]
    8. chain h [66308]
    9. chain i [66309]
    10. chain j [66310]
4. Thermus thermophilus [TaxId: 274] [143627] (15)
  SQ Q5SH52 32-216
  1. 1wur
    automatically matched to 1WM9 A:32-216
    complexed with 8dg, zn
    1. region a:32-216 [121309]
  2. 1wur
    automatically matched to 1WM9 A:32-216
    complexed with 8dg, zn
    1. region b:32-216 [121310]
  3. 1wur
    automatically matched to 1WM9 A:32-216
    complexed with 8dg, zn
    1. region c:32-216 [121311]
  4. 1wur
    automatically matched to 1WM9 A:32-216
    complexed with 8dg, zn
    1. region d:32-216 [121312]
  5. 1wur
    automatically matched to 1WM9 A:32-216
    complexed with 8dg, zn
    1. region e:33-216 [121313]
  6. 1wuq
    automatically matched to 1WM9 A:32-216
    complexed with 8gt, zn
    1. region a:33-216 [121304]
  7. 1wuq
    automatically matched to 1WM9 A:32-216
    complexed with 8gt, zn
    1. region b:33-216 [121305]
  8. 1wuq
    automatically matched to 1WM9 A:32-216
    complexed with 8gt, zn
    1. region c:33-216 [121306]
  9. 1wuq
    automatically matched to 1WM9 A:32-216
    complexed with 8gt, zn
    1. region d:33-216 [121307]
  10. 1wuq
    automatically matched to 1WM9 A:32-216
    complexed with 8gt, zn
    1. region e:33-216 [121308]
  11. 1wm9
    complexed with zn
    1. region a:32-216 [121037]
  12. 1wm9
    automatically matched to 1WM9 A:32-216
    complexed with zn
    1. region b:32-216 [121038]
  13. 1wm9
    automatically matched to 1WM9 A:32-216
    complexed with zn
    1. region c:32-216 [121039]
  14. 1wm9
    automatically matched to 1WM9 A:32-216
    complexed with zn
    1. region d:32-216 [121040]
  15. 1wm9
    automatically matched to 1WM9 A:32-216
    complexed with zn
    1. region e:33-216 [121041]