Structural Classification of Proteins
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Superfamily: Histone-fold

link to SUPERFAMILY database - Superfamily

Lineage:

  1. Root: scop
  2. Class: All alpha proteins [46456]
  3. Fold: Histone-fold [47112]
    core: 3 helices; long middle helix is flanked at each end with shorter ones
  4. Superfamily: Histone-fold [47113]
    link to SUPERFAMILY database - Superfamily

Families:

  1. Nucleosome core histones [47114] (23)
    form octamers composed of two copies of each of the four histones
    1. Histone H2A [47115]
      1. Chicken (Gallus gallus), erythrocytes [TaxId: 9031] [47116] (7) picpic
        SQ P02263
      2. African clawed frog (Xenopus laevis) [TaxId: 8355] [47117] (29) picpic
      3. Human (Homo sapiens), variant H2A.Z [TaxId: 9606] [47118] (1) picpic
      4. Baker's yeast (Saccharomyces cerevisiae), H2A.1 [TaxId: 4932] [68984] (2) picpic
      5. Human (Homo sapiens), H2A.a [TaxId: 9606] [140392] (2) picpic
        SQ P28001 11-118
      6. Mouse (Mus musculus), H2A.1 [TaxId: 10090] [158384] (1) picpic
        SQ P22752 14-118
    2. Histone H2B [47119]
      1. Chicken (Gallus gallus), erythrocytes [TaxId: 9031] [47120] (7) picpic
        SQ P02279
      2. African clawed frog (Xenopus laevis) [TaxId: 8355] [47121] (32) picpic
      3. Baker's yeast (Saccharomyces cerevisiae), H2B.2 [TaxId: 4932] [68985] (2) picpic
      4. Mouse (Mus musculus), H2Ba [TaxId: 10090] [140393] (3) picpic
        SQ Q9D2U9 34-126
      5. Human (Homo sapiens), H2B.k [TaxId: 9606] [140394] (2) picpic
        SQ O60814 30-125
      6. Xenopus (Silurana) tropicalis [TaxId: 8364] [158385] (4) picpic
    3. Histone H3 [47122]
      1. Chicken (Gallus gallus), erythrocytes [TaxId: 9031] [47123] (9) picpic
        SQ P84229
      2. African clawed frog (Xenopus laevis) [TaxId: 8355] [47124] (34) picpic
      3. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [68986] (1) picpic
      4. Mouse(Mus musculus), H3.1 [TaxId: 10090] [140395] (4) picpic
        SQ P68433 38-135
      5. fruit fly (Drosophila melanogaster) [TaxId: 7227] [158386] (4) picpic
    4. Histone H4 [47125]
      1. Chicken (Gallus gallus), erythrocytes [TaxId: 9031] [47126] (5) picpic
        SQ P62801
      2. African clawed frog (Xenopus laevis) [TaxId: 8355] [47127] (45) picpic
      3. Mouse (Mus musculus) [TaxId: 10090] [47128] (1) picpic
      4. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [68987] (1) picpic
      5. fruit fly (Drosophila melanogaster) [TaxId: 7227] [158387] (4) picpic
    5. macro-H2A.1, histone domain [140396]
      1. Human (Homo sapiens) [TaxId: 9606] [140397] (3) picpic
        SQ O75367 11-116
  2. Archaeal histone [47129] (4)
    1. Archaeal histone [68897]
      1. Archaeon Methanothermus fervidus, histone A [TaxId: 2180] [68895] (2) picpic
      2. Archaeon Methanothermus fervidus, histone B [TaxId: 2180] [68896] (3) picpic
      3. Archaeon Methanopyrus kandleri [TaxId: 2320] [68988] (1) picpic
      4. Archaeon (Pyrococcus horikoshii) [TaxId: 53953] [101106] (1) picpic
  3. TBP-associated factors, TAFs [47134] (13)
    1. TAF(II)42 [47135]
      TAFii42 and TAFii62 form heterotetramer similar to (H3-H4)2
      1. Fruit fly (Drosophila melanogaster) [TaxId: 7227] [47136] (1) picpic
    2. TAF(II)62 [47137]
      TAFii42 and TAFii62 form heterotetramer similar to (H3-H4)2
      1. Fruit fly (Drosophila melanogaster) [TaxId: 7227] [47138] (1) picpic
    3. TAF(II)18 [47139]
      1. Human (Homo sapiens) [TaxId: 9606] [47140] (2) picpic
    4. TAF(II)28 [47141]
      1. Human (Homo sapiens) [TaxId: 9606] [47142] (2) picpic
    5. TAF(II)-135, (TAF(II)-130, hTAF4), histone fold domain [81720]
      lacks the third helix, forms a heterodimer with TAF(II)-20 similar to H2A-H2B
      1. Human (Homo sapiens) [TaxId: 9606] [81721] (1) picpic
    6. TAF(II)-20, (TAF(II)-15, hTAF12), histone fold domain [81722]
      forms a heterodimer with TAF(II)-135 similar to H2A-H2B
      1. Human (Homo sapiens) [TaxId: 9606] [81723] (1) picpic
    7. Negative cofactor 2, NC2, alpha chain [63507]
      1. Human (Homo sapiens) [TaxId: 9606] [63508] (1) picpic
    8. Negative cofactor 2, NC2, beta chain [63509]
      1. Human (Homo sapiens) [TaxId: 9606] [63510] (1) picpic
    9. Nuclear transcription factor Y subunit beta (Nf-Yb3) [81724]
      forms a heterodimer with Nf-Yc2 similar to H2A/H2B
      1. Human (Homo sapiens) [TaxId: 9606] [81725] (1) picpic
    10. Nuclear transcription factor Y subunit gamma (Nf-Yc2) [81726]
      forms a heterodimer with Nf-Yb3 similar to H2A/H2B
      1. Human (Homo sapiens) [TaxId: 9606] [81727] (1) picpic
    11. Histone domain of Son of sevenless protein [101107]
      1. Human (Homo sapiens) [TaxId: 9606] [101108] (1) picpic
    12. Chrac-14 [140398]
      1. Fruit fly (Drosophila melanogaster) [TaxId: 7227] [140399] (4) picpic
        SQ Q9V444 11-99
    13. Chrac-16 [140400]
      1. Fruit fly (Drosophila melanogaster) [TaxId: 7227] [140401] (4) picpic
        SQ Q9V452 29-100
  4. Bacterial histone-fold protein [101318] (2)
    duplication: two repeats of histone fold are arranged as subunits in the archael histone dimer; new structure from Thermus thermophilus (1wws) comprised of dimers similar the to the H3-H4 tetramer
    1. Hypothetical protein Aq_328 [101319]
      1. Aquifex aeolicus [TaxId: 63363] [101320] (1) picpic
    2. Hypothetical protein TTHA1479 [140402]
      1. Thermus thermophilus [TaxId: 274] [140403] (9) picpic
        SQ Q5SI95 1-148
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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