Structural Classification of Proteins
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Superfamily: Cyclotides

macrocyclic plant knottins closed with the formation of an Asn-Gly peptide
link to SUPERFAMILY database - Superfamily

Lineage:

  1. Root: scop
  2. Class: Small proteins [56992]
    Usually dominated by metal ligand, heme, and/or disulfide bridges
  3. Fold: Knottins (small inhibitors, toxins, lectins) [57015]
    disulfide-bound fold; contains beta-hairpin with two adjacent disulfides
  4. Superfamily: Cyclotides [57038]
    macrocyclic plant knottins closed with the formation of an Asn-Gly peptide
    link to SUPERFAMILY database - Superfamily

Families:

  1. Kalata B1 [57039] (1)
    1. Kalata B1 [57040]
      cyclic 29-residue polypeptide
      1. African plant (Oldenlandia affinis) [TaxId: 60225] [57041] (8)
        SQ P58454 71-97
        1. 1n1u picpic
          in the linear precursor, the mature protein sequence begins at Gly 26 and ends at Asn 25
          mutant
          1. chain a [79823] picpiclink
        2. 1pt4 picpic
          1. chain a [104306] picpiclink
        3. 1nb1 picpic
          in the precursor, the mature protein sequence begins at Gly26 and ends at Asn25
          1. chain a [85507] picpiclink
        4. 1kal picpic
          in the linear precursor, the mature protein sequence begins at Gly 9 and ends at Asn 8
          1. chain a [44077] picpiclink
        5. 1znu picpic
          automatically matched to d1nb1a_
          1. region a:1-29 [125409] picpiclink
        6. 1jjz picpic
          in the linear precursor, the mature protein sequence begins at Gly 9 and ends at Asn 8
          1. chain a [71699] picpiclink
        7. 1k48 picpic
          in the linear precursor, the mature protein sequence begins at Gly 9 and ends at Asn 8
          1. chain a [72052] picpiclink
        8. 1orx picpic
          acyclic permutant; canonical knottin topology
          1. chain a [87370] picpiclink
  2. Cycloviolacin [57042] (2)
    1. Cycloviolacin O1 [57043]
      cyclic 30-residue polypeptide
      1. Plant (Viola odorata) [TaxId: 97441] [57044] (2)
        1. 1nbj picpic
          by homology with Kalata, in the precursor, the mature protein sequence probably begins at Gly28 and ends at Asn27
          1. chain a [85524] picpiclink
        2. 1df6 picpic
          by homology with the Kalata B1 linear precursor, the mature protein sequence probably begins at Gly25 and ends at Asn24
          1. chain a [44078] picpiclink
    2. Root cyclotide 1 [118231]
      1. Australian violet (Viola hederacea) [TaxId: 180952] [118232] (1)
        SQ P83937
        1. 1vb8 picpic
          by homology with the Kalata B1 linear precursor, the mature protein sequence probably begins at Gly28 and ends at Asn27
          1. chain a [113606] picpiclink
  3. Circulin A [57045] (1)
    1. Circulin A [57046]
      cyclic 30-residue polypeptide
      1. Chassalia parviflora [TaxId: 58431] [57047] (1)
        1. 1bh4 picpic
          by homology with the Kalata B1 linear precursor, the mature protein sequence probably begins at Gly28 and ends at Asn27
          1. chain a [44079] picpiclink
  4. Palicourein [103526] (1)
    1. Palicourein [103527]
      1. Palicourea condensata [TaxId: 272141] [103528] (1)
        1. 1r1f picpic
          by homology with the Kalata B1 linear precursor, the mature protein sequence probably begins at Gly35 and ends at Asn34
          1. chain a [96815] picpiclink
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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