Structural Classification of Proteins
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Fold: EF Hand-like

core: 4 helices; array of 2 hairpins, opened

Lineage:

  1. Root: scop
  2. Class: All alpha proteins [46456]
  3. Fold: EF Hand-like [47472]
    core: 4 helices; array of 2 hairpins, opened

Superfamilies:

  1. EF-hand [47473] (11)
    Duplication: consists of two EF-hand units: each is made of two helices connected with calcium-binding loop
    link to SUPERFAMILY database - Superfamily
    1. Calbindin D9K [47474] (2)
      made of two EF-hands only
      1. Calbindin D9K [47475]
        1. Cow (Bos taurus) [TaxId: 9913] [47476] (18) picpic
          SQ P02633
        2. Pig (Sus scrofa) [TaxId: 9823] [47477] (1) picpic
    2. S100 proteins [47478] (17)
      dimer: subunits are made of two EF-hands
      1. Calcyclin (S100) [47479]
        1. Rabbit (Oryctolagus cuniculus) [TaxId: 9986] [47480] (6) picpic
        2. Human (Homo sapiens), s100a6 [TaxId: 9606] [74719] (4) picpic
        3. Human (Homo sapiens), s100a4 [TaxId: 9606] [81754] (9) picpic
          MTS1 protein
        4. Rat (Rattus norvegicus), s100a1 [TaxId: 10116] [69019] (5) picpic
        5. Rat (Rattus norvegicus), s100b [TaxId: 10116] [47481] (7) picpic
        6. Cow (Bos taurus), s100b [TaxId: 9913] [47482] (6) picpic
        7. Human (Homo sapiens), s100b [TaxId: 9606] [47483] (12) picpic
        8. Human (Homo sapiens), P11 s100a10, calpactin [TaxId: 9606] [47484] (2) picpic
          ligand of annexin II
        9. Human (Homo sapiens), psoriasin s100a7 [TaxId: 9606] [47485] (3) picpic
        10. Pig (Sus scrofa), calgizzarin s100c (s100a11) [TaxId: 9823] [47486] (1) picpic
        11. Rabbit (Oryctolagus cuniculus), calgizzarin s100a11 [TaxId: 9986] [89047] (1) picpic
        12. Human (Homo sapiens), calgranulin s100a8, MRP8 [TaxId: 9606] [47487] (7) picpic
          Migration inhibitory factor-related protein 8
        13. Human (Homo sapiens), calgranulin C, s100a12 [TaxId: 9606] [47488] (3) picpic
        14. Human (Homo sapiens), s100a9 (mrp14) [TaxId: 9606] [69020] (7) picpic
        15. Human (Homo sapiens), s100a3 [TaxId: 9606] [74720] (1) picpic
        16. Human (Homo sapiens), s100p [TaxId: 9606] [81755] (2) picpic
        17. Human (Homo sapiens), s100a13 [TaxId: 9606] [140535] (8) picpic
          SQ Q99584 1-98
    3. Polcalcin [89048] (3)
      calcium-binding pollen allergen; two EF-hands per subunit
      1. Polcalcin phl p 7 [89049]
        1. Timothy grass (Phleum pratense) [TaxId: 15957] [89050] (1) picpic
      2. Polcalcin bet v 4 [101177]
        1. White birch (Betula verrucosa) [TaxId: 3505] [101178] (1) picpic
      3. Polcalcin Che a 3 [109816]
        1. Pigweed (Chenopodium album) [TaxId: 3559] [109817] (4) picpic
          SQ Q84V36
    4. Osteonectin [47489] (1)
      5 helices; two EF-hands plus one of additional helices in the N-terminal part
      1. C-terminal (EC) domain of BM-40/SPARC/osteonectin [47490]
        1. Human (Homo sapiens) [TaxId: 9606] [47491] (3) picpic
    5. Parvalbumin [47492] (9)
      6-helices; array of 3 hairpins, closed
      made with two-helical hairpin and two EF-hands
      1. Oncomodulin [47493]
        1. Rat (Rattus norvegicus) [TaxId: 10116] [47494] (3) picpic
      2. Parvalbumin [47495]
        1. Carp (Cyprinus carpio) [TaxId: 7962] [47496] (7) picpic
        2. Pike (Esox lucius) [TaxId: 8010] [47497] (9) picpic
        3. Leopard shark (Triakis semifasciata) [TaxId: 30493] [47498] (1) picpic
        4. Whiting (Merlangius merlangus) [TaxId: 8058] [47499] (1) picpic
        5. Silver hake (Merluccius bilinearis) [TaxId: 79698] [47500] (1) picpic
        6. Rat (Rattus rattus) [TaxId: 10117] [47501] (4) picpic
          SQ P02625
        7. Human (Homo sapiens) [TaxId: 9606] [109818] (2) picpic
          SQ P20472
        8. Rattus norvegicus [TaxId: 10116] [158476] (1) picpic
    6. Calmodulin-like [47502] (49)
      Duplication: made with two pairs of EF-hands
      1. Troponin C [47503]
        1. Chicken (Gallus gallus) [TaxId: 9031] [47504] (28) picpic
          SQ P09860
        2. Turkey (Meleagris gallopavo) [TaxId: 9103] [47505] (2) picpic
        3. Rabbit (Oryctolagus cuniculus) [TaxId: 9986] [47506] (4) picpic
        4. Chicken (Gallus gallus), cardiac isoform [TaxId: 9031] [47507] (1) picpic
        5. Human (Homo sapiens), cardiac isoform [TaxId: 9606] [47508] (21) picpic
        6. Rainbow trout (Oncorhynchus mykiss) [TaxId: 8022] [109819] (2) picpic
          SQ Q7ZZB9 1-89
      2. Sarcoplasmic calcium-binding protein [47509]
        1. Sandworm (Nereis diversicolor) [TaxId: 126592] [47510] (2) picpic
          SQ P04571
        2. Amphioxus (Branchiostoma lanceolatum) [TaxId: 7740] [47511] (1) picpic
      3. Calcium vector protein [47514]
        1. Amphioxus (Branchiostoma lanceolatum) [TaxId: 7740] [47515] (4) picpic
      4. Calcium-regulated photoprotein [47512]
        structurally most similar to sarcoplasmic calcium-binding protein
        1. Jellyfish (Aequorea aequorea), aequorin [TaxId: 168712] [47513] (9) picpic
        2. Hydrozoa (Obelia longissima), obelin [TaxId: 32570] [63541] (7) picpic
          SQ Q27709
        3. Hydrozoa (Obelia geniculata), obelin [TaxId: 185004] [63542] (1) picpic
        4. Jellyfish (Aequorea victoria), aequorin 1 [TaxId: 6100] [116901] (1) picpic
          SQ P07164 16-196
      5. Calerythrin [101179]
        structurally most similar to sarcoplasmic calcium-binding protein
        1. Saccharopolyspora erythraea [TaxId: 1836] [101180] (1) picpic
      6. EHCABP [69021]
        1. Entamoeba (Entamoeba histolytica) [TaxId: 5759] [69022] (2) picpic
      7. Calmodulin [47516]
        1. Human (Homo sapiens) [TaxId: 9606] [47517] (60) picpic
          SQ P02593
        2. Cow (Bos taurus) [TaxId: 9913] [47518] (56) picpic
          SQ P62157
        3. Rat (Rattus rattus) [TaxId: 10117] [47519] (5) picpic
          SQ P62161
        4. Chicken (Gallus gallus) [TaxId: 9031] [47520] (2) picpic
          mutant with a two residue deletion in the central helix
        5. African frog (Xenopus laevis) [TaxId: 8355] [47521] (13) picpic
        6. Drosophila melanogaster [TaxId: 7227] [47522] (6) picpic
        7. Nematode (Caenorhabditis elegans) [TaxId: 6239] [89051] (1) picpic
        8. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [89052] (3) picpic
        9. Ciliate (Paramecium tetraurelia) [TaxId: 5888] [47523] (4) picpic
          SQ Q42478
        10. Potato (Solanum tuberosum) [TaxId: 4113] [109820] (1) picpic
        11. Rattus norvegicus [TaxId: 10116] [158477] (2) picpic
      8. Calmodulin-related protein NB-1 (CLP) [74721]
        1. Human (Homo sapiens) [TaxId: 9606] [74722] (1) picpic
      9. Caltractin (centrin 2) [89053]
        1. Human (Homo sapiens) [TaxId: 9606] [89054] (5) picpic
        2. Green algae (Chlamydomonas reinhardtii) [TaxId: 3055] [89055] (1) picpic
      10. Cdc4p [63543]
        1. Fission yeast (Schizosaccharomyces pombe) [TaxId: 4896] [63544] (1) picpic
      11. Myosin Light Chain Mlc1p [81756]
        light chain of class V myosin
        1. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [81757] (3) picpic
      12. Myosin Essential Chain [47524]
        1. Bay scallop (Aequipecten irradians) [TaxId: 31199] [47525] (13) picpic
          SQ P13543
        2. Chicken (Gallus gallus) [TaxId: 9031] [47526] (5) picpic
        3. Human (Homo sapiens) [TaxId: 9606] [101181] (3) picpic
      13. Myosin Regulatory Chain [47527]
        1. Bay scallop (Aequipecten irradians) [TaxId: 31199] [47528] (13) picpic
          SQ P07291
        2. Chicken (Gallus gallus) [TaxId: 9031] [47529] (1) picpic
      14. Calcineurin regulatory subunit (B-chain) [47530]
        1. Cow (Bos taurus) [TaxId: 9913] [47531] (3) picpic
        2. Human (Homo sapiens) [TaxId: 9606] [47532] (3) picpic
      15. Calcineurin B-like protein 2 [101182]
        1. Thale cress (Arabidopsis thaliana) [TaxId: 3702] [101183] (2) picpic
      16. Recoverin [47533]
        Calcium-myristoyl switch; only one EF-hand is functional
        1. Cow (Bos taurus) [TaxId: 9913] [47534] (11) picpic
      17. Kchip1, Kv4 potassium channel-interacting protein [101184]
        1. Rat (Rattus norvegicus) [TaxId: 10116] [101185] (1) picpic
        2. Human (Homo sapiens) [TaxId: 9606] [116902] (1) picpic
          SQ Q9NZI2
      18. Frequenin (neuronal calcium sensor 1) [47535]
        1. Human (Homo sapiens) [TaxId: 9606] [63545] (1) picpic
        2. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [47536] (2) picpic
      19. Guanylate cyclase activating protein 2, GCAP-2 [47537]
        1. Cow (Bos taurus) [TaxId: 9913] [47538] (1) picpic
      20. Neurocalcin [47539]
        1. Cow (Bos taurus) [TaxId: 9913] [47540] (1) picpic
      21. Calcium- and integrin-binding protein, CIB [47541]
        1. Human (Homo sapiens) [TaxId: 9606] [47542] (5) picpic
          SQ Q99828
      22. Calcium-dependent protein kinase sk5 CLD [109821]
        1. Soybean (Glycine max) [TaxId: 3847] [109822] (2) picpic
          SQ P28583 328-508
      23. Calmodulin-related protein T21P5.17 [109823]
        1. Thale cress (Arabidopsis thaliana) [TaxId: 3702] [109824] (1) picpic
          SQ Q9SRP5 2-67
    7. Eps15 homology domain (EH domain) [47543] (4)
      1. Eps15 [47544]
        1. Mouse (Mus musculus) [TaxId: 10090] [47545] (1) picpic
        2. Human (Homo sapiens) [TaxId: 9606] [47546] (5) picpic
      2. Pob1 [63546]
        1. Human (Homo sapiens) [TaxId: 9606] [63547] (1) picpic
      3. Reps1 [63548]
        1. Mouse (Mus musculus) [TaxId: 10090] [63549] (1) picpic
    8. Cbp40 (plasmodial specific CaII-binding protein LAV1-2) [81758] (1)
      4 EF-hands assembled in a compact structure like the Penta-EF-hand proteins; contains additional N-terminal all-alpha subdomain
      1. Cbp40 (plasmodial specific CaII-binding protein LAV1-2) [81759]
        1. Physarum polycephalum [TaxId: 5791] [81760] (2) picpic
    9. Penta-EF-hand proteins [63550] (11)
      1. Apoptosis-linked protein alg-2 [63551]
        1. Mouse (Mus musculus) [TaxId: 10090] [63552] (1) picpic
      2. Sorcin [69023]
        1. Human (Homo sapiens) [TaxId: 9606] [69024] (1) picpic
        2. Chinese hamster (Cricetulus griseus) [TaxId: 10029] [74723] (1) picpic
      3. Grancalcin [47550]
        Calpain small subunit homologue
        1. Human (Homo sapiens) [TaxId: 9606] [47551] (4) picpic
      4. Calpain small (regulatory) subunit (domain VI) [47552]
        1. Human (Homo sapiens) [TaxId: 9606] [47553] (2) picpic
        2. Rat (Rattus norvegicus) [TaxId: 10116] [47554] (6) picpic
        3. Pig (Sus scrofa) [TaxId: 9823] [47555] (6) picpic
      5. Calpain large subunit, C-terminal domain (domain IV) [47556]
        1. Human (Homo sapiens), M-type [TaxId: 9606] [47557] (2) picpic
        2. Rat (Rattus norvegicus), M-type [TaxId: 10116] [47558] (2) picpic
        3. Rat (Rattus norvegicus), mu-type [TaxId: 10116] [101186] (1) picpic
      6. Programmed cell death 6 protein-like protein [116903]
        1. Leishmania major [TaxId: 5664] [116904] (1) picpic
          SQ Q4QG08 53-234
    10. EF-hand modules in multidomain proteins [47547] (8)
      1. Phosphoinositide-specific phospholipase C, isozyme D1 (PLC-D!) [47548]
        1. Rat (Rattus norvegicus) [TaxId: 10116] [47549] (10) picpic
      2. Dystrophin [47559]
        probably lost calcium-binding function; contains extra helices in each domain
        1. Human (Homo sapiens) [TaxId: 9606] [47560] (2) picpic
      3. Cbl [47561]
        1. Human (Homo sapiens) [TaxId: 9606] [47562] (12) picpic
      4. alpha-Actinin [63553]
        1. Human (Homo sapiens) [TaxId: 9606] [63554] (1) picpic
      5. Nucleobindin 1 (CALNUC) [109825]
        1. Human (Homo sapiens) [TaxId: 9606] [109826] (1) picpic
          SQ Q02818 228-326
      6. Diacylglycerol kinase alpha, N-terminal domain [116905]
        contains two pairs of EF-hands, the modified first pair (res 25-109) does not bind calcium but retains the common fold
        1. Human (Homo sapiens) [TaxId: 9606] [116906] (1) picpic
          SQ O95217 P23743 1-116
      7. DJ-1-binding protein, DJBP [140536]
        1. Human (Homo sapiens) [TaxId: 9606] [140537] (4) picpic
          SQ Q5THR3 1160-1242
      8. Phospholipase C-beta-2 [158478]
        1. Human (Homo sapiens) [TaxId: 9606] [158479] (2) picpic
          SQ Q00722 142-311
    11. p25-alpha [140538] (2)
      Pfam 05517; comprises two degenerate EF-hands and extra C-terminal helix, packed agains the bundle end
      1. Hypothetical protein c32e8.3 [140539]
        1. Caenorhabditis elegans [TaxId: 6239] [140540] (1) picpic
          SQ P91127 8-110
      2. Protein cgi-38 [140541]
        1. Mouse (Mus musculus) [TaxId: 10090] [140542] (1) picpic
          SQ Q9CRB6 1-138
  2. Insect pheromone/odorant-binding proteins [47565] (1)
    the N-terminal extension, containing a few short helices, forms a flexible lid for the binding cavity
    link to SUPERFAMILY database - Superfamily
    1. Insect pheromone/odorant-binding proteins [47566] (6)
      1. Thp12-carrier protein [47567]
        1. Yellow mealworm (Tenebrio molitor) [TaxId: 7067] [47568] (2) picpic
      2. Moth pheromone-binding protein, PBP [47569]
        1. Silk moth (Bombyx mori) [TaxId: 7091] [47570] (7) picpic
        2. Polyphemus moth (Antheraea polyphemus) [TaxId: 7120] [101187] (3) picpic
      3. Pheromone binding protein PBPLma [101188]
        1. Madeira cockroach (Leucophaea maderae) [TaxId: 36963] [101189] (3) picpic
      4. Odorant binding protein LUSH [101190]
        1. Fruit fly (Drosophila melanogaster) [TaxId: 7227] [101191] (8) picpic
      5. Pheromone-binding protein asp1 [101192]
        1. Common honeybee (Apis mellifera) [TaxId: 7460] [101193] (1) picpic
  3. Hypothetical protein MTH865 [69025] (1)
    link to SUPERFAMILY database - Superfamily
    1. Hypothetical protein MTH865 [69026] (1)
      1. Hypothetical protein MTH865 [69027]
        1. Archaeon Methanobacterium thermoautotrophicum [TaxId: 145262] [69028] (1) picpic
  4. Cloroperoxidase [47571] (1)
    duplication: consists of 2 similar domains composed of 2 EF hand-like motifs each
    link to SUPERFAMILY database - Superfamily
    1. Cloroperoxidase [47572] (1)
      1. Cloroperoxidase [47573]
        1. Fungus (Caldariomyces fumago) [TaxId: 5474] [47574] (24) picpic
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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