Structural Classification of Proteins

Class: Peptides

: Peptides and fragments. Not a true class

Lineage:

Root: scop
Class: Peptides [58231]
Peptides and fragments. Not a true class

Folds:

Membrane ion channel-forming peptide antibiotics containing D-aminoacids [58232] (1)
1. Membrane ion channel-forming peptide antibiotics containing D-aminoacids [58233] (2)
  1. Gramicidin [58234] (1)
    1. Gramicidin [58235]
      different conformations
      1. Bacillus brevis [TaxId: 1393] [58236] (21)
  2. Peptaibol [58237] (8)
    1. Chrysospermin C [58238]
      1. Hypomyces chrysospermus, congruent with Apiocrea chrysosperma [TaxId: 5131] [58239] (1)
    2. Zervamicin IIb [70003]
      1. Emericellopsis salmosynnemata [TaxId: 118885] [70004] (2)
    3. Antiamoebin I [82954]
      1. Emericellopsis [TaxId: 45244] [82955] (1)
    4. Alamecitin [58241]
      1. Trichoderma viride [TaxId: 5547] [58242] (1)
    5. Trichotoxin_a50e [82956]
      1. Trichoderma viride [TaxId: 5547] [82957] (1)
    6. Cephaibol A [103698]
      1. Acremonium tubakii [TaxId: 146077] [103699] (1)
    7. Cephaibol B [103700]
      1. Acremonium tubakii [TaxId: 146077] [103701] (1)
    8. Cephaibol C [103702]
      1. Acremonium tubakii [TaxId: 146077] [103703] (1)
Lantibiotic peptides [58243] (1)
peptide antibiotic
1. Lantibiotic peptides [58244] (3)
  1. Actagardine [58245] (1)
    1. Actagardine [58246]
      1. Actinoplanes liguriae [TaxId: 69484] [58247] (1)
  2. Mersacidin [58248] (1)
    1. Mersacidin [58249]
      1. Bacillus sp., Hil Y-85 [TaxId: 1409] [58250] (4)
  3. Nisin [111494] (1)
    1. Nisin [111495]
      1. Lactococcus lactis [TaxId: 1358] [111496] (1)
Leucocin-like bacteriocin [100898] (1)
consists of a conserved, disulfide-containing N-terminal region (forming a beta-sheet) and a C-terminal helix
1. Leucocin-like bacteriocin [100899] (1)
  1. Leucocin-like bacteriocin [100900] (3)
    1. Leucocin [58254]
      antibacterial peptide, bacteriocin
      1. Leuconostoc gelidum [TaxId: 1244] [58255] (3)
    2. Sakacin P [103704]
      1. Lactobacillus sake [TaxId: 1599] [103705] (3)
    3. Carnobacteriocin B2 [58276]
      1. Carnobacterium piscicola [TaxId: 2751] [58277] (2)
Antimicrobial beta-hairpin [58251] (1)
contains beta-hairpin crosslinked by disulfide bridge(s)
1. Antimicrobial beta-hairpin [58252] (8)
  not a true superfamily
  1. Insect defense peptide thanatin [58256] (1)
    1. Insect defense peptide thanatin [58257]
      1. Podisus maculiventris [TaxId: 29025] [58258] (1)
  2. Androctonin [58259] (1)
    1. Androctonin [58260]
      1. Scorpion (Androctonus australis) [TaxId: 6858] [58261] (1)
  3. Gomesin [75725] (1)
    1. Gomesin [75726]
      1. Mygalomorphae spider (Acanthoscurria gomesiana) [TaxId: 115339] [75727] (1)
  4. Tachyplesin I [82958] (2)
    1. Tachyplesin I [82959]
      horseshoe crab antimicrobial peptide
      1. Japanese horseshoe crab (Tachypleus tridentatus) [TaxId: 6853] [82960] (4)
      2. synthetic, polyphemusin I [111497] (1)
  5. theta defensin-like [58262] (2)
    1. Protegrin 1 (PG1) [58263]
      1. Pig (Sus scrofa) [TaxId: 9823] [58264] (1)
    2. RTD-1 [64621]
      a cyclic antimicrobial defensin from rhesus macaque leukocytes
      1. Synthetic, based on Rhesus macaque sequence [64622] (1)
  6. Lactoferricin B (lfcinb) [58265] (1)
    1. Lactoferricin B (lfcinb) [58266]
      Antimicrobial peptide derived from bovine lactoferrin
      1. Synthetic, based on Bos taurus sequence [58267] (1)
  7. Hepcidin [82961] (2)
    1. Hepcidin [82962]
      1. Synthetic, based on human sequence [82963] (2)
      2. synthetic, based on the hybrid white striped bass sequence [118385] (1)
  8. Cyclic trypsin inhibitor STFI-1 [90265] (1)
    1. Cyclic trypsin inhibitor STFI-1 [90266]
      1. Sunflower (Helianthus annuus l.) [TaxId: 4232] [90267] (2)
Antimicrobial helix [58268] (1)
antibiotic peptide
1. Antimicrobial helix [58269] (5)
  not a true superfamily
  1. Magainin [58270] (2)
    1. Magainin 2 [58271]
      1. Xenopus laevis [TaxId: 8355] [58272] (2)
    2. Cecropin A-Magainin 2 hybrid peptide [58273]
      1. synthetic, hybrid of Hyalophora cecropia and Xenopus laevis sequences [58274] (10)
  2. Moricin [75728] (1)
    1. Moricin [75729]
      1. Silkworm (Bombyx mori) [TaxId: 7091] [75730] (1)
  3. Tachykinin peptides [82964] (3)
    1. Kassinin [82965]
      1. Frog (Kassina senegalensis) [TaxId: 8415] [82966] (1)
    2. Eledoisin [82967]
      1. Octopod (Eledone moschata) [TaxId: 6641] [82968] (1)
    3. Neurokinin A [103706]
      1. Synthetic, mammalian sequence [103707] (1)
  4. Cytotoxic linear peptide IsCT [118386] (1)
    1. Cytotoxic linear peptide IsCT [118387]
      1. Scorpion (Opisthacanthus madagascariensis) [TaxId: 167108] [118388] (4)
  5. Distinctin [144312] (2)
    1. Distinctin chain B [144313]
      1. synthetic [144314] (2)
    2. Distinctin chain A [144315]
      1. synthetic [144316] (2)
Macrocyclic bacteriocins [58278] (1)
macrocyclic antimicrobial peptide; bacteriocin
1. Macrocyclic bacteriocins [58279] (2)
  1. Microcin J25 [58280] (1)
    1. Microcin J25 [58281]
      1. Escherichia coli [TaxId: 562] [58282] (3)
  2. Subtilosin A [111498] (1)
    unusual posttranslational modifications linking cysteine sulfurs to alpha-carbons
    1. Subtilosin A [111499]
      1. Bacillus subtilis [TaxId: 1423] [111500] (1)
Peptide hormones [58283] (1)
contains one alpha-helix
1. Peptide hormones [58284] (1)
  this is not a true superfamily
  1. Peptide hormones [58285] (24)
    1. Pancreatic polypeptide [58286]
      1. Cow (Bos taurus) [TaxId: 9913] [58287] (3)
      2. Turkey (Meleagris gallopavo) [TaxId: 9103] [58288] (2)
    2. Neuropeptide Y [58289]
      1. Human (Homo sapiens) [TaxId: 9606] [58290] (2)
      2. Pig (Sus scrofa) [TaxId: 9823] [58291] (2)
    3. Peptide YY, PYY [58292]
      1. Pig (Sus scrofa) [TaxId: 9823] [58293] (3)
      2. Human (Homo sapiens) [TaxId: 9606] [144317] (2)
    4. Neuropeptide Y analogues [58294]
      1. Synthetic [58295] (6)
    5. Neuropeptide F [75731]
      1. Sheep tapeworm (Moniezia expansa) [TaxId: 28841] [75732] (1)
    6. Deaminooxytocin [58296]
      ten-residue peptide with one disulfide
      1. Synthetic [58297] (2)
    7. Glucagon [58298]
      1. Pig (Sus scrofa) [TaxId: 9823] [58299] (3)
      2. Synthetic, Homo sapiens analog [58300] (1)
    8. Glucagon-like peptide-1-(7-36)-amide [82969]
      1. Human (Homo sapiens) [TaxId: 9606] [82970] (1)
    9. Exendin-4 [70005]
      glucagone-like hormone
      1. Synthetic [70006] (1)
    10. Calcitonin [58301]
      1. Eel (Anguilla japonica) [TaxId: 7937] [58302] (3)
      2. Pink salmon (Oncorhynchus gorbuscha) [TaxId: 8017] [90268] (1)
      3. Chum salmon (Oncorhynchus keta) [TaxId: 8018] [144318] (2)
    11. Neuromedin B [58303]
      1. Synthetic [58304] (2)
    12. Hypocretin-2/orexin- b' [58305]
      1. Human (Homo sapiens) [TaxId: 9606] [58306] (1)
    13. Motilin [82971]
      1. Synthetic, based on human sequence [82972] (1)
    14. Transportan (galanin-like peptide) [103708]
      1. Synthetic [103709] (1)
    15. Neurokinin B [111501]
      1. Synthetic [111502] (1)
    16. Orexin [111503]
      1. Human (Homo sapiens) [TaxId: 9606] [111504] (2)
    17. Pardaxin P-4 [111505]
      1. Red sea moses sole (Pardachirus marmoratus) [TaxId: 31087] [111506] (1)
    18. Gastric inhibitory polypeptide, GIP [118389]
      1. Human (Homo sapiens) [TaxId: 9606] [118390] (1)
Angiotensin [90269] (1)
1. Angiotensin [90270] (1)
  1. Angiotensin [90271] (2)
    1. Angiotensin I [90272]
      1. Synthetic, based on human sequence [90273] (1)
    2. Angiotensin II [90274]
      1. Synthetic, based on human sequence [90275] (1)
delta toxin-like [58307] (3)
single alpha helix
1. delta-Toxin [58308] (1)
  1. delta-Toxin [58309] (1)
    1. delta-Toxin [58310]
      1. Synthetic [58311] (2)
2. Antimicrobial peptide HP(2-20) [90276] (1)
  1. Antimicrobial peptide HP(2-20) [90277] (1)
    1. Antimicrobial peptide HP(2-20) [90278]
      1. Synthetic, derived from the Helicobacter pylori ribosomal protein L1 [90279] (7)
3. Anticancer peptides [118391] (1)
  1. Anticancer peptides [118392] (1)
    1. Anticancer peptides [118393]
      derived from Escherichia coli EIIA-Glc peptide (SQ P69783 1-13) and Litoria raniformis aurein 1.2 (SQ P82387)
      1. synthetic [118394] (4)
PSP1-like [58312] (1)
1. PSP1-like [58313] (1)
  1. PSP1-like [58314] (5)
    1. Plasmatocyte-spreading peptide PSP1 [58315]
      1. Pseudoplusia includens [TaxId: 76492] [58316] (2)
    2. Growth-blocking peptide GBP [58317]
      1. Braconid wasp (Apanteles kariyai) [TaxId: 7404] [58318] (1)
        parasite of armyworm (Pseudaletia separata?)
    3. Paralytic peptide [58319]
      1. Insect (Manduca sexta) [TaxId: 7130] [58320] (1)
      2. Silkworm (Bombyx mori) [TaxId: 7091] [82973] (1)
      3. Silkmoth (Antheraea yamamai) [TaxId: 7121] [118395] (1)
Arg-rich RNA binding peptides [58321] (7)
1. 30S ribosomal protein THX [58322] (1)
  1. 30S ribosomal protein THX [58323] (1)
    1. 30S ribosomal protein THX [58324]
      1. Thermus thermophilus [TaxId: 274] [58325] (18)
2. HIV-1 REV fragments [58326] (1)
  1. HIV-1 REV fragments [58327] (1)
    1. HIV-1 REV fragments [58328]
      1. Human immunodeficiency virus type 1 [TaxId: 11676] [58329] (6)
3. RSG-1.2 peptide [58330] (1)
  1. RSG-1.2 peptide [58331] (1)
    1. RSG-1.2 peptide [58332]
      1. Human immunodeficiency virus type 1 [TaxId: 11676] [58333] (1)
4. TAT peptides [58334] (1)
  1. TAT peptides [58335] (2)
    1. TAT peptides [58336]
      1. Human immunodeficiency virus type 1 [TaxId: 11676] [58337] (1)
      2. Bovine immunodeficiency virus [TaxId: 11657] [58338] (2)
5. Box B RNA-binding N peptide [58339] (1)
  1. Box B RNA-binding N peptide [58340] (4)
    1. Box B RNA-binding N peptide [58341]
      1. Salmonella bacteriophage P22 [TaxId: 10754] [58342] (1)
      2. Bacteriophage lambda [TaxId: 10710] [58343] (1)
      3. Bacteriophage HK022 [TaxId: 10742] [70007] (1)
      4. Bacteriophage phi-21 [TaxId: 10737] [90280] (1)
6. HTLV-1 peptide [58344] (1)
  1. HTLV-1 peptide [58345] (1)
    1. HTLV-1 peptide [58346]
      bound to its RNA aptamer target
      1. Synthetic [58347] (1)
7. Ilarvirus coat protein N-terminal fragment [118396] (1)
  1. Ilarvirus coat protein N-terminal fragment [118397] (1)
    N-terminal part of Pfam 01787; RNA-binding helix
    1. Ilarvirus coat protein N-terminal fragment [118398]
      1. Alfalfa mosaic virus (strain YSMV) [TaxId: 12325] [118399] (1)
DNA-binding domains of HMG-I(Y) [58348] (1)
1. DNA-binding domains of HMG-I(Y) [58349] (1)
  1. DNA-binding domains of HMG-I(Y) [58350] (1)
    1. DNA-binding domains of HMG-I(Y) [58351]
      1. Human (Homo sapiens) [TaxId: 9606] [58352] (4)
VPR protein fragments [58353] (1)
1. VPR protein fragments [58354] (1)
  1. VPR protein fragments [58355] (1)
    1. VPR protein fragments [58356]
      1. Human immunodeficiency virus type 1 [TaxId: 11676] [58357] (13)
Inactivation gate of potassium and sodium channels [58358] (1)
1. Inactivation gate of potassium and sodium channels [58359] (1)
  1. Inactivation gate of potassium and sodium channels [58360] (5)
    it is not a true family
    1. Potassium channel RAW3 [58361]
      1. Synthetic, based on mammalian sequence [58362] (1)
      2. Synthetic, expressed in Escherichia coli [58363] (2)
    2. Potassium channel RCK4 [58364]
      1. Synthetic, based on mammalian sequence [58365] (2)
    3. Sodium channel IIA [58366]
      1. Rat (Rattus norvegicus) [TaxId: 10116] [58367] (1)
    4. Potassium voltage-gated channel subfamily H (HERG) extracellular linker [103710]
      1. Synthetic, based on human sequence [103711] (1)
Coagulation factor VIII, membrane-binding peptide [58368] (1)
1. Coagulation factor VIII, membrane-binding peptide [58369] (1)
  1. Coagulation factor VIII, membrane-binding peptide [58370] (1)
    1. Coagulation factor VIII, membrane-binding peptide [58371]
      1. Human (Homo sapiens) [TaxId: 9606] [58372] (2)
Phosphocholine cytidylyltransferase membrane-binding peptides [58373] (1)
1. Phosphocholine cytidylyltransferase membrane-binding peptides [58374] (1)
  1. Phosphocholine cytidylyltransferase membrane-binding peptides [58375] (1)
    1. Phosphocholine cytidylyltransferase membrane-binding peptides [58376]
      alpha-helix
      1. Rat (Rattus norvegicus) [TaxId: 10116] [58377] (2)
Parathyroid hormone fragments (residues between 1 and 39) [58378] (1)
1. Parathyroid hormone fragments (residues between 1 and 39) [58379] (1)
  1. Parathyroid hormone fragments (residues between 1 and 39) [58380] (2)
    1. Parathyroid hormone fragments (residues between 1 and 39) [58381]
      1. Human (Homo sapiens) [TaxId: 9606] [58382] (14)
      2. Cow (Bos taurus) [TaxId: 9913] [58383] (1)
Corticotropin releasing hormone [58384] (1)
1. Corticotropin releasing hormone [58385] (1)
  1. Corticotropin releasing hormone [58386] (1)
    1. Corticotropin releasing hormone [58387]
      1. Human (Homo sapiens) [TaxId: 9606] [58388] (2)
Liposaccharide-binding protein CAP18 (residues 106-137) [58389] (1)
1. Liposaccharide-binding protein CAP18 (residues 106-137) [58390] (1)
  1. Liposaccharide-binding protein CAP18 (residues 106-137) [58391] (1)
    1. Liposaccharide-binding protein CAP18 (residues 106-137) [58392]
      1. Synthetic, based on rabbit sequence [58393] (1)
Polymorphic antigen SPAM-H1 (residues 90-127) [58394] (1)
1. Polymorphic antigen SPAM-H1 (residues 90-127) [58395] (1)
  1. Polymorphic antigen SPAM-H1 (residues 90-127) [58396] (1)
    1. Polymorphic antigen SPAM-H1 (residues 90-127) [58397]
      1. Malaria parasite (Plasmodium falciparum) [TaxId: 5833] [58398] (1)
Insect toxins [58399] (1)
1. Insect toxins [58400] (2)
  1. Mellitin-like toxins [58401] (2)
    1. Mellitin [58402]
      1. Honeybee (Apis mellifera) [TaxId: 7460] [58403] (2)
    2. Mastoparan [64623]
      1. Wasp (Vespula lewisii) [TaxId: 7452] [64624] (1)
  2. Poneratoxin (Pac-Tx) [103712] (1)
    1. Poneratoxin (Pac-Tx) [103713]
      1. Ant (Paraponera clavata) [TaxId: 55425] [103714] (1)
Tertiapin [58404] (1)
small disulfide-rich peptide
1. Tertiapin [58405] (1)
  1. Tertiapin [58406] (1)
    1. Tertiapin [58407]
      1. Honeybee venom (Apis mellifera) [TaxId: 7460] [58408] (1)
Antifreeze polypeptide HPLC-6 [58409] (1)
1. Antifreeze polypeptide HPLC-6 [58410] (1)
  1. Antifreeze polypeptide HPLC-6 [58411] (1)
    1. Antifreeze polypeptide HPLC-6 [58412]
      1. Winter flounder (Pseudopleuronectes americanus) [TaxId: 8265] [58413] (3)
Troponin I fragments [58414] (1)
1. Troponin I fragments [58415] (1)
  1. Troponin I fragments [58416] (3)
    1. Troponin I fragments [58417]
      1. Rabbit (Oryctolagus cuniculus) [TaxId: 9986] [58418] (1)
      2. Human (Homo sapiens), cardiac isoform [TaxId: 9606] [58419] (2)
      3. Chicken (Gallus gallus) [TaxId: 9031] [144319] (2)
Pilin fragments [58420] (1)
1. Pilin fragments [58421] (1)
  1. Pilin fragments [58422] (3)
    1. Pilin, fragment 128-144 [58423]
      1. Pseudomonas aeruginosa, strain k pak pilin [TaxId: 287] [58424] (4)
      2. Pseudomonas aeruginosa, strain o pao pilin [TaxId: 287] [58425] (2)
      3. Pseudomonas aeruginosa, strain kb7 [TaxId: 287] [58426] (2)
RP71935 [58427] (1)
1. RP71935 [58428] (1)
  1. RP71935 [58429] (1)
    1. RP71935 [58430]
      21-residue disulfide-bound peptide
      1. Actinomycete, strain sp9440 [TaxId: 100235] [58431] (2)
Atrial natriuretic peptide [58432] (1)
1. Atrial natriuretic peptide [58433] (1)
  1. Atrial natriuretic peptide [58434] (1)
    1. Atrial natriuretic peptide [58435]
      A-type receptor specific hypotensive hormone
      1. Human (Homo sapiens) [TaxId: 9606] [58436] (1)
Compstatin [58437] (1)
1. Compstatin [58438] (1)
  1. Compstatin [58439] (1)
    1. Compstatin [58440]
      1. Synthetic chemical synthesis [58441] (1)
Membrane-bound antimicrobial peptides [58442] (1)
1. Membrane-bound antimicrobial peptides [58443] (1)
  1. Membrane-bound antimicrobial peptides [58444] (2)
    no or little secondary structure
    1. Tritrpticin [58445]
      1. Synthetic, based on Sus scrofa sequence [58446] (1)
    2. Indolicidin [58447]
      1. Synthetic, based on Bos taurus sequence [58448] (5)
Endothelin-like [58449] (1)
small disulfide-rich
1. Endothelin-like [58450] (1)
  1. Endothelin-like [58451] (3)
    1. Endothelin-1 [58452]
      1. Human (Homo sapiens) [TaxId: 9606] [58453] (4)
      2. Synthetic [58454] (2)
    2. Sarafotoxin S6B [58455]
      1. Synthetic, based on sequence from asp Atractaspis engaddensis venom [58456] (1)
Heat-stable enterotoxin (HSE) [58457] (1)
1. Heat-stable enterotoxin (HSE) [58458] (1)
  1. Heat-stable enterotoxin (HSE) [58459] (2)
    short disulfide-bound peptide
    1. Heat-stable enterotoxin [58460]
      1. Escherichia coli [TaxId: 562] [58461] (3)
    2. Guanylin [58462]
      endogenous ligand to the HSE receptor
      1. Human (Homo sapiens) [TaxId: 9606] [58463] (4)
Conotoxins [58464] (1)
disulfide-rich fold
1. Conotoxins [58465] (7)
  all apart omega class; it is not a true superfamily
  1. mu-conotoxin [58466] (4)
    1. mu-Conotoxin GIIIa [58467]
      1. Conus geographus [TaxId: 6491] [58468] (4)
    2. mu-Conotoxin GIIIb [58469]
      1. Conus geographus [TaxId: 6491] [58470] (1)
    3. Mu-conotoxin pIIIa [103715]
      1. Conus purpurascens [TaxId: 41690] [103716] (1)
    4. Mu-conotoxin smIIIa [103717]
      1. Conus stercusmuscarum [TaxId: 89452] [103718] (1)
  2. alpha-conotoxin [58471] (11)
    13-16 residue peptide with 2 disulfides
    1. alpha-conotoxin PNI1 [58472]
      1. Conus pennaceus [TaxId: 37335] [58473] (1)
    2. alpha-conotoxin PNIB [58474]
      1. Conus pennaceus [TaxId: 37335] [58475] (1)
    3. alpha-conotoxin IM1 [58476]
      1. Conus imperialis [TaxId: 35631] [58477] (5)
    4. alpha-conotoxin MII [58478]
      1. Synthetic [58479] (1)
    5. G1 alpha-conotoxin [58480]
      1. Conus geographus [TaxId: 6491] [58481] (5)
    6. alpha-conotoxin GID [82974]
      1. Conus geographus [TaxId: 6491] [82975] (1)
    7. alpha-conotoxin CNIA [58482]
      1. Conus consors [TaxId: 101297] [58483] (1)
    8. alpha-conotoxin auIB [58484]
      1. Conus aulicus [TaxId: 89437] [58485] (3)
    9. alpha-conotoxin SI [58486]
      1. Conus striatus [TaxId: 6493] [58487] (2)
    10. Alpha-conotoxin EI [103719]
      1. Conus ermineus [TaxId: 55423] [103720] (1)
    11. Alpha-conotoxin GIC [111507]
      1. Conus geographus [TaxId: 6491] [111508] (1)
  3. Alpha-a-conotoxin [58488] (2)
    1. AA-conotoxin pIVa [58489]
      1. Conus purpurascens [TaxId: 41690] [58490] (1)
    2. Alpha-a-conotoxin eIVa [103721]
      1. Conus ermineus [TaxId: 55423] [103722] (1)
  4. psi-conotoxin [58491] (2)
    1. psi-conotoxin pIIIe [58492]
      1. Conus purpurascens [TaxId: 41690] [58493] (2)
    2. psi-conotoxin pIIIf [90281]
      1. Conus purpurascens [TaxId: 41690] [90282] (1)
  5. Conotoxin tiA [75733] (1)
    1. Conotoxin tiA [75734]
      1. Conus tulipa [TaxId: 6495] [75735] (1)
  6. Conotoxin mrIB [75736] (1)
    1. Conotoxin mrIB [75737]
      1. Conus marmoreus [TaxId: 42752] [75738] (1)
  7. Delta-conotoxin [103723] (1)
    1. delta-conotoxin eVIa1 [103724]
      1. Conus ermineus [TaxId: 55423] [103725] (1)
Conantokin [58494] (1)
1. Conantokin [58495] (2)
  gamma-carboxyglutamic acid (GLA)-rich peptide; active conformation may be stabilized by metal ions
  1. Conantokin G (conatoxin G) [58496] (1)
    1. Conantokin G (conatoxin G) [58497]
      1. Conus geographus [TaxId: 6491] [58498] (3)
  2. Conantokin-T [58499] (1)
    1. Conantokin-T [58500]
      1. Conus tulipa [TaxId: 6495] [58501] (1)
Contryphan-R [58502] (1)
1. Contryphan-R [58503] (1)
  1. Contryphan-R [58504] (1)
    1. Contryphan-R [58505]
      contains D-tryptophan
      1. Conus radiatus [TaxId: 61198] [58506] (6)
Kappa-hefutoxin-like [58507] (2)
hairpin of two short helices crosslinked with two disulfides
1. Immunodominant region of protein G of BRSV [58508] (1)
  1. Immunodominant region of protein G of BRSV [58509] (2)
    1. Immunodominant region of protein G of BRSV [58510]
      1. Bovine respiratory syncytial virus [TaxId: 11246] [58511] (1)
      2. Human respiratory syncytial virus [TaxId: 11250] [90283] (2)
2. Potassium channel toxins [75739] (1)
  1. Potassium channel toxins [75740] (1)
    1. Kappa-hefutoxin [75741]
      1. Synthetic [75742] (1)
Penaeidin-3a [103726] (1)
1. Penaeidin-3a [103727] (1)
  1. Penaeidin-3a [103728] (1)
    1. Penaeidin-3a [103729]
      antimicrobial peptide; consists of N-terminal proline-rich tail and C-terminal cysteine-rich domain
      1. Pacific white shrimp (Litopenaeus vannamei) [TaxId: 6689] [103730] (1)
Bradykinin [58512] (1)
1. Bradykinin [58513] (1)
  1. Bradykinin [58514] (2)
    1. Bradykinin [64625]
      1. SP Human (Homo sapiens) [TaxId: 9606] [64626] (1)
    2. Bradykinin antagonist B-9340 [58515]
      1. Synthetic [58516] (1)
Transmembrane helical fragments [58517] (1)
1. Transmembrane helical fragments [58518] (1)
  1. Transmembrane helical fragments [58519] (30)
    the member of this family may be not related
    1. Bacteriorhodopsin fragments [58520]
      1. Archaeon Halobacterium halobium [TaxId: 2242] [58521] (3)
    2. Rhodopsin fragments [58522]
      1. Synthetic, based on Bos taurus sequence [58523] (6)
    3. Band 3 [58524]
      1. Synthetic peptides based on human band 3 sequence [58525] (9)
    4. Pulmonary surfactant-associated polypeptide C (SP-C) [58526]
      1. Pig (Sus scrofa) [TaxId: 9823] [58527] (1)
    5. N-terminal segment of surfactant protein B [58528]
      1. Synthetic, based on Homo sapiens sequence [58529] (5)
    6. beta-Adrenoreceptor [58530]
      1. Turkey (Meleagris gallopavo) [TaxId: 9103] [58531] (1)
    7. Dimeric transmembrane domain of glycophorin A [58532]
      right-hand twisted coiled coil
      1. Human (Homo sapiens) [TaxId: 9606] [58533] (1)
    8. F1F0 ATP synthase subunit C fragments [58534]
      1. Escherichia coli [TaxId: 562] [58535] (1)
    9. Membrane domain of the subunit b of ATP synthase [58536]
      1. Escherichia coli [TaxId: 562] [58537] (1)
    10. alpha-subunit of nicotinic acetylcholine receptor [58538]
      M3 transmembrane segment
      1. Synthetic, based on Torpedo californica sequence [58539] (1)
    11. Membrane spanning segment 2 (M2) of the acetylcholine receptor [58540]
      1. Rat (Rattus norvegicus) [TaxId: 10116] [58541] (2)
      2. Pacific electric ray (Torpedo californica) [TaxId: 7787] [58542] (2)
    12. Transmembrane segment 2 of NMDA receptor NR1 [58543]
      1. Human (Homo sapiens) [TaxId: 9606] [58544] (1)
    13. Cystic fibrosis transmembrane conductance regulator [58545]
      1. Synthetic [58546] (4)
    14. Second repeat (is2mic) from voltage-gated sodium channel [58547]
      1. Synthetic, based on Rattus norvegicus sequence [58548] (1)
    15. Cytoplasmic domain of p23 [58549]
      1. Synthetic, based on Oryctolagus cuniculus sequence [58550] (2)
    16. Active domain of protein icp47 [58551]
      1. Herpes simplex virus type 1, strain 17 [TaxId: 10298] [58552] (1)
    17. fragment of hepatitis C envelope glycoprotein E (residues 350-370) [58553]
      1. Synthetic [58554] (1)
    18. Neu/erbb-2 membrane spanning segment [64627]
      1. Synthetic, based on Rattus norvegicus sequence [64628] (1)
    19. Membrane binding peptide of semliki forest virus mRNA capping enzyme nsp1 [64629]
      1. Synthetic [64630] (1)
    20. Sarcolipin [70008]
      1. Synthetic [70009] (1)
    21. Potassium channel fragment L45 [75743]
      1. Fruit fly (Drosophila melanogaster) [TaxId: 7227] [75744] (2)
    22. Amphipathic domain of YopD [75745]
      1. Synthetic, Yersinia pestis-based [75746] (1)
    23. Matrix protein M2 transmembrane peptide [82976]
      1. Synthetic, Inluenza A virus-based [82977] (2)
    24. N-terminal membrane anchor of the glucose-specific IIa component [90284]
      1. Escherichia coli [TaxId: 562] [90285] (1)
        amphipathic helix; this region is partly disordered in the crystal structure of the whole protein (d1gl)a CH F
    25. Pheromone alpha factor receptor [103731]
      1. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [103732] (1)
    26. Glycine receptor alpha-1 chain [103733]
      1. Human (Homo sapiens) [TaxId: 9606] [103734] (2)
    27. Vpu protein [103735]
      1. Human immunodeficiency virus type 1, HIV-1 [TaxId: 11676] [103736] (3)
    28. Membrane anchor domain of the nonstructural protein 5a (NS5a) [111509]
      1. Hepatitis C virus, HCV [TaxId: 11103] [111510] (5)
    29. ASLV fusion peptide [118400]
      1. Rous sarc