Structural Classification of Proteins
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Family: Ricin B-like

Lineage:

  1. Root: scop
  2. Class: All beta proteins [48724]
  3. Fold: beta-Trefoil [50352]
    barrel, closed; n=6, S=12; and a hairpin triplet; meander
    duplication: has internal pseudo threefold symmetry
  4. Superfamily: Ricin B-like lectins [50370]
    link to SUPERFAMILY database - Superfamily
  5. Family: Ricin B-like [50371]

Protein Domains:

  1. Plant cytotoxin B-chain (lectin) [50372]
    duplication: consists of two domains of this fold
    1. Castor bean (Ricinus communis), Ricin [TaxId: 3988] [50373] (2)
      SQ P06750 303-564
      1. 2aai picpicxref
        complexed with gal, glc, man, nag
        1. region b:1-135 [25561] picpiclink
        2. region b:136-262 [25562] picpiclink
      2. 1rzo picpicxref
        complexed with glb, so4
        1. region b:2001-2135 [111984] picpiclink
        2. region b:2136-2262 [111985] picpiclink
        3. region d:2001-2135 [111987] picpiclink
        4. region d:2136-2262 [111988] picpiclink
    2. Abrus precatorius [TaxId: 3816] [50374] (1)
      1. 1abr picpicxref
        complexed with man, nag
        1. region b:1-140 [25563] picpiclink
        2. region b:141-267 [25564] picpiclink
    3. Mongolian snake-gourd (Trichosanthes kirilowii), Lectin 1 [TaxId: 3677] [89337] (1)
      1. 1ggp picpicxref
        X-ray derived abrin-based sequence
        1. region b:11-140 [83286] picpiclink
        2. region b:141-267 [83287] picpiclink
    4. European mistletoe (Viscum album) [TaxId: 3972] [50375] (18)
      different sequence variants
      SQ Q6ITZ3 266-520; SQ P81446 269-531 # 91% sequence identity
      1. 1m2t picpicxref
        complexed with ade, fuc, gol, nag
        1. region b:249-384 [84762] picpiclink
        2. region b:385-510 [84763] picpiclink
      2. 2rg9 picpic
        automatically matched to d1pumb1
        complexed with azi, cl, gol, nag, so4
        1. region b:1-137 [152008] picpiclink
      3. 2rg9 picpic
        automatically matched to d1pumb2
        complexed with azi, cl, gol, nag, so4
        1. region b:138-263 [152009] picpiclink
      4. 1onk picpicxref
        complexed with azi, gol, nag, po4
        1. region b:1-137 [93360] picpiclink
        2. region b:138-263 [93361] picpiclink
      5. 1sz6 picpicxref
        complexed with azi, cl, gol, nag, so4
        1. region b:1-137 [112172] picpiclink
        2. region b:138-263 [112173] picpiclink
      6. 1puu picpicxref
        complexed with cl, dox, fuc, gol, lat, nag, so4
        1. region b:248-384 [104318] picpiclink
        2. region b:385-507 [104319] picpiclink
      7. 1pum picpicxref
        complexed with cl, fuc, glb, gol, nag, so4
        1. region b:1-137 [104315] picpiclink
        2. region b:138-263 [104316] picpiclink
      8. 3d7w picpic
        automatically matched to d1m2tb1
        complexed with gol, nag, so4, zea, zez
        1. region b:250-384 [157434] picpiclink
      9. 3d7w picpic
        automatically matched to d1m2tb2
        complexed with gol, nag, so4, zea, zez
        1. region b:385-510 [157435] picpiclink
      10. 1oql picpicxref
        complexed with gal, nag
        1. region b:1-137 [87307] picpiclink
        2. region b:138-263 [87308] picpiclink
      11. 2r9k picpicxref
        automatically matched to d1m2tb1
        complexed with cl, gol, nag, sgi, so4
        1. region b:249-384 [151790] picpiclink
      12. 2r9k picpicxref
        automatically matched to d1m2tb2
        complexed with cl, gol, nag, sgi, so4
        1. region b:385-510 [151791] picpiclink
      13. 1yf8 picpicxref
        automatically matched to d1pc8b1
        complexed with gal, glc, man, nag, p6c
        1. region b:1-133 [123052] picpiclink
      14. 1yf8 picpicxref
        automatically matched to d1pc8b2
        complexed with gal, glc, man, nag, p6c
        1. region b:134-255 [123053] picpiclink
      15. 1tfm picpicxref
        complexed with bgc, bma, glb, nag, p6c
        1. region b:1-133 [106856] picpiclink
        2. region b:134-255 [106857] picpiclink
      16. 1ce7 picpicxref
        complexed with nag
        1. region b:1-133 [25565] picpiclink
        2. region b:134-255 [25566] picpiclink
      17. 2mll picpicxref
        complexed with nag
        1. region b:1-133 [25567] picpiclink
        2. region b:134-255 [25568] picpiclink
      18. 1pc8 picpicxref
        complexed with man, nag
        1. region b:1-133 [104105] picpiclink
        2. region b:134-255 [104106] picpiclink
    5. Sambucus ebulus, ebulin [TaxId: 28503] [50376] (4)
      1. 1hwm picpicxref
        complexed with gal, man, nag
        1. region b:3-135 [25569] picpiclink
        2. region b:136-266 [25570] picpiclink
      2. 1hwo picpicxref
        complexed with gal, glc, man, nag
        1. region b:2-135 [25571] picpiclink
        2. region b:136-264 [25572] picpiclink
      3. 1hwn picpicxref
        complexed with gal, nag
        1. region b:2-135 [25573] picpiclink
        2. region b:136-264 [25574] picpiclink
      4. 1hwp picpicxref
        complexed with gal, glc, man, nag, pt1
        1. region b:2-135 [25575] picpiclink
        2. region b:136-264 [25576] picpiclink
  2. Xylan binding domain, CBM13 (Endo-1,4-beta-xylanase C-terminal domain) [50377]
    1. Streptomyces olivaceoviridis [TaxId: 1921] [50378] (11)
      1. 1v6w picpicxref
        complexed with gcv, xys
        1. region a:304-436 [100434] picpiclink
        2. region b:804-936 [100436] picpiclink
      2. 1isz picpicxref
        complexed with gal
        1. region a:313-436 [66357] picpiclink
        2. region b:813-936 [66359] picpiclink
      3. 1xyf picpicxref
        1. region a:313-436 [25577] picpiclink
        2. region b:813-936 [25578] picpiclink
      4. 1it0 picpicxref
        complexed with lat
        1. region a:313-436 [66361] picpiclink
        2. region b:813-936 [66363] picpiclink
      5. 1v6v picpicxref
        complexed with ahr, xys
        1. region a:304-436 [100430] picpiclink
        2. region b:804-936 [100432] picpiclink
      6. 1isv picpicxref
        complexed with xys
        1. region a:304-436 [66341] picpiclink
        2. region b:804-936 [66343] picpiclink
      7. 1isy picpicxref
        complexed with glc
        1. region a:304-436 [66353] picpiclink
        2. region b:804-936 [66355] picpiclink
      8. 1isx picpicxref
        complexed with xys
        1. region a:304-436 [66349] picpiclink
        2. region b:804-936 [66351] picpiclink
      9. 1v6x picpicxref
        complexed with gcv, xys
        1. region a:304-436 [100438] picpiclink
        2. region b:804-936 [100440] picpiclink
      10. 1isw picpicxref
        complexed with xys
        1. region a:304-436 [66345] picpiclink
        2. region b:804-936 [66347] picpiclink
      11. 1v6u picpicxref
        complexed with ahr, xys
        1. region a:304-436 [100426] picpiclink
        2. region b:804-936 [100428] picpiclink
    2. Streptomyces lividans [TaxId: 1916] [74958] (3)
      1. 1knm picpic
        complexed with gol, lat
        1. chain a [72781] picpiclink
      2. 1knl picpic
        complexed with gol
        1. chain a [72780] picpiclink
      3. 1mc9 picpic
        complexed with gol, so4, xys
        1. chain a [78949] picpiclink
  3. Hemagglutinin component Ha1 [101784]
    1. Clostridium botulinum D phage [TaxId: 29342] [101785] (1)
      1. 1qxm picpic
        complexed with edo; mutant
        1. region a:4-148 [96533] picpiclink
        2. region a:149-286 [96534] picpiclink
        3. region b:4-148 [96535] picpiclink
        4. region b:149-286 [96536] picpiclink
    2. Clostridium botulinum [TaxId: 1491] [159147] (12)
      1. 2ehm picpic
        automatically matched to d1qxma1
        complexed with nga
        1. region a:4-148 [146836] picpiclink
      2. 2ehm picpic
        automatically matched to d1qxma2
        complexed with nga
        1. region a:149-286 [146837] picpiclink
      3. 2ehm picpic
        automatically matched to d1qxma1
        complexed with nga
        1. region b:4-148 [146838] picpiclink
      4. 2ehm picpic
        automatically matched to d1qxma2
        complexed with nga
        1. region b:149-286 [146839] picpiclink
      5. 2ehn picpic
        automatically matched to d1qxma1
        complexed with gal
        1. region a:4-148 [146840] picpiclink
      6. 2ehn picpic
        automatically matched to d1qxma2
        complexed with gal
        1. region a:149-286 [146841] picpiclink
      7. 2ehn picpic
        automatically matched to d1qxma1
        complexed with gal
        1. region b:4-148 [146842] picpiclink
      8. 2ehn picpic
        automatically matched to d1qxma2
        complexed with gal
        1. region b:149-286 [146843] picpiclink
      9. 2ehi picpic
        automatically matched to d1qxma1
        complexed with sia
        1. region a:4-148 [146832] picpiclink
      10. 2ehi picpic
        automatically matched to d1qxma2
        complexed with sia
        1. region a:149-286 [146833] picpiclink
      11. 2ehi picpic
        automatically matched to d1qxma1
        complexed with sia
        1. region b:4-148 [146834] picpiclink
      12. 2ehi picpic
        automatically matched to d1qxma2
        complexed with sia
        1. region b:149-286 [146835] picpiclink
  4. Cytolethal distending toxin subunit A [110207]
    1. Haemophilus ducreyi [TaxId: 730] [110208] (1)
      SQ O06522 57-223
      1. 1sr4 picpicxrefxref
        complexed with br
        1. chain a [105948] picpiclink
    2. Actinobacillus actinomycetemcomitans [TaxId: 714] [141329] (2)
      SQ O87120 70-222
      1. 2f2f picpicxrefxrefxrefxref
        1. region a:71-223 [132810] picpiclink
      2. 2f2f picpicxrefxrefxrefxref
        automatically matched to 2F2F A:71-223
        1. region d:71-223 [132813] picpiclink
  5. Cytolethal distending toxin subunit C [110209]
    1. Haemophilus ducreyi [TaxId: 730] [110210] (1)
      SQ O06524 25-178
      1. 1sr4 picpicxrefxref
        complexed with br
        1. chain c [105950] picpiclink
    2. Actinobacillus actinomycetemcomitans [TaxId: 714] [141330] (2)
      SQ Q7DK11 25-178
      1. 2f2f picpicxrefxrefxrefxref
        1. region c:25-178 [132812] picpiclink
      2. 2f2f picpicxrefxrefxrefxref
        automatically matched to 2F2F C:25-178
        1. region f:25-178 [132815] picpiclink
  6. Hemolytic lectin CEL-III, domains 1 and 2 [110211]
    1. Cucumaria echinata [TaxId: 40245] [110212] (9)
      SQ Q868M7 11-442
      1. 1vcl picpicxref
        complexed with btb, ca, cl, mg
        1. region a:1-150 [108498] picpiclink
        2. region a:151-283 [108499] picpiclink
        3. region b:1-150 [108501] picpiclink
        4. region b:151-283 [108502] picpiclink
      2. 2z48 picpicxrefxref
        automatically matched to d1vcla1
        complexed with a2g, ca, mg, nga
        1. region a:2-150 [154036] picpiclink
      3. 2z48 picpicxrefxref
        automatically matched to d1vcla2
        complexed with a2g, ca, mg, nga
        1. region a:151-283 [154037] picpiclink
      4. 2z48 picpicxrefxref
        automatically matched to d1vcla1
        complexed with a2g, ca, mg, nga
        1. region b:2-150 [154039] picpiclink
      5. 2z48 picpicxrefxref
        automatically matched to d1vcla2
        complexed with a2g, ca, mg, nga
        1. region b:151-283 [154040] picpiclink
      6. 2z49 picpicxrefxref
        automatically matched to d1vcla1
        complexed with amg, ca, mg
        1. region a:2-150 [154042] picpiclink
      7. 2z49 picpicxrefxref
        automatically matched to d1vcla2
        complexed with amg, ca, mg
        1. region a:151-283 [154043] picpiclink
      8. 2z49 picpicxrefxref
        automatically matched to d1vcla1
        complexed with amg, ca, mg
        1. region b:2-150 [154045] picpiclink
      9. 2z49 picpicxrefxref
        automatically matched to d1vcla2
        complexed with amg, ca, mg
        1. region b:151-283 [154046] picpiclink
  7. Polypeptide N-acetylgalactosaminyltransferase 1, C-terminal domain [117210]
    1. Mouse (Mus musculus) [TaxId: 10090] [117211] (1)
      SQ O08912
      1. 1xhb picpicxref
        complexed with ca, man, mn, nag
        1. region a:423-553 [115290] picpiclink
  8. 29-kDa galactose-binding lectin [159148]
    duplication: tadem repeat of two Ricin B-like domains
    1. Lumbricus terrestris [TaxId: 6398] [159149] (4)
      SQ O96048 131-260
      1. 2zqn picpic
        automatically matched to 2ZQO A:131-260
        complexed with bgc, gal, imd, po4
        1. region a:131-260 [154763] picpiclink
      2. 2zqn picpic
        automatically matched to 2ZQO A:131-260
        complexed with bgc, gal, imd, po4
        1. region b:131-260 [154764] picpiclink
      3. 2zqo picpic
        second domain only
        complexed with cd, imd, nga, po4
        1. region a:131-260 [154765] picpiclink
      4. 2zqo picpic
        automatically matched to 2ZQO A:131-260
        complexed with cd, imd, nga, po4
        1. region b:131-260 [154766] picpiclink
  9. Agglutinin-1 chain B [159150]
    1. Abrus precatorius [TaxId: 3816] [159151] (2)
      SQ Q9M6E9 287-420! SQ Q9M6E9 421-547
      1. 2q3n picpicxref
        complexed with nag
        1. region b:141-267 [150035] picpiclink
      2. 2q3n picpicxref
        complexed with nag
        1. region b:7-140 [150036] picpiclink
  10. Agglutinin MOA, N-terminal domain [159152]
    1. Fairy-ring mushroom (Marasmius oreades) [TaxId: 181124] [159153] (1)
      SQ Q8X123 2-155
      1. 2iho picpicxref
        complexed with gal, nag
        1. region a:2-155 [147681] 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