Structural Classification of Proteins
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Family: GTP cyclohydrolase I

Lineage:

  1. Root: scop
  2. Class: Alpha and beta proteins (a+b) [53931]
    Mainly antiparallel beta sheets (segregated alpha and beta regions)
  3. 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
  4. Superfamily: Tetrahydrobiopterin biosynthesis enzymes-like [55620]
    bind purine or pterin in topologically similar sites between subunits
    link to SUPERFAMILY database - Superfamily
  5. Family: GTP cyclohydrolase I [55621]

Protein Domains:

  1. GTP cyclohydrolase I [55622]
    beta-sheets of five subunits form a barrel, closed: n=20, S=20
    1. Escherichia coli [TaxId: 562] [55623] (7) picpic
    2. Human (Homo sapiens) [TaxId: 9606] [55624] (1) picpic
    3. Rat (Rattus norvegicus) [TaxId: 10116] [69790] (3) picpic
      SQ P22288
    4. Thermus thermophilus [TaxId: 274] [143627] (15) picpic
      SQ Q5SH52 32-216
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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