Structural Classification of Proteins

Fold: Thioredoxin fold

: core: 3 layers, a/b/a; mixed beta-sheet of 4 strands, order 4312; strand 3 is antiparallel to the rest

Lineage:

Root: scop
Class: Alpha and beta proteins (a/b) [51349]
Mainly parallel beta sheets (beta-alpha-beta units)
Fold: Thioredoxin fold [52832]
core: 3 layers, a/b/a; mixed beta-sheet of 4 strands, order 4312; strand 3 is antiparallel to the rest

Superfamilies:

Thioredoxin-like [52833] (23)
uperfamily
1. Thioltransferase [52834] (31)
  1. Thioredoxin [52835]
    1. Escherichia coli [TaxId: 562] [52836] (31)
      SQ P00274 ! SQ P00581
    2. Anabaena sp., pcc 7120 [TaxId: 1167] [52837] (1)
      thioredoxin H
    3. Chlamydomonas reinhardtii [TaxId: 3055] [52838] (4)
    4. Alicyclobacillus acidocaldarius, formerly Bacillus acidocaldarius [TaxId: 405212] [52839] (4)
      SQ P80579
    5. Spinach (Spinacia oleracea), thioredoxin F [TaxId: 3562] [52840] (2)
    6. Spinach (Spinacia oleracea), thioredoxin M [TaxId: 3562] [52841] (3)
    7. Human (Homo sapiens) [TaxId: 9606] [52842] (26)
    8. Trypanosoma brucei [TaxId: 5691] [102430] (1)
    9. Malarial parasite (Plasmodium falciparum) [TaxId: 5833] [102431] (1)
    10. Thale cress (Arabidopsis thaliana) [TaxId: 3702] [110603] (1)
      SQ P29448 #
    11. Fruit fly (Drosophila melanogaster) [TaxId: 7227] [117589] (4)
      SQ Q9V429
    12. European aspen (Populus tremula), thioredoxin H [TaxId: 113636] [117590] (1)
      SQ Q8S3L3
  2. Glutaredoxin (Grx, thioltransferase) [52843]
    1. Bacteriophage T4 [TaxId: 10665] [52844] (4)
    2. Escherichia coli [TaxId: 562] [52845] (4)
    3. Escherichia coli, Grx3 [TaxId: 562] [52846] (2)
    4. Pig (Sus scrofa) [TaxId: 9823] [52847] (1)
    5. Human (Homo sapiens) [TaxId: 9606] [52848] (2)
  3. C-terminal, Grx domain of Hybrid-Prx5 [89700]
    1. Haemophilus influenzae [TaxId: 727] [89701] (1)
      HI0572
  4. Glutaredoxin-like NRDH-redoxin [64052]
    1. Escherichia coli [TaxId: 562] [64053] (1)
    2. Corynebacterium ammoniagenes [TaxId: 1697] [102432] (1)
  5. MJ0307, thioredoxin/glutaredoxin-like protein [64054]
    single-domain PDI
    1. Archaeon Methanococcus jannaschii [TaxId: 2190] [64055] (1)
  6. MTH807, thioredoxin/glutaredoxin-like protein [102433]
    behaves as true thioredoxin; probable MJ0307 ortholog
    1. Archaeon Methanobacterium thermoautotrophicum [TaxId: 145262] [102434] (1)
  7. MTH985, a thioredoxin [69512]
    1. Archaeon Methanobacterium thermoautotrophicum [TaxId: 145262] [69513] (1)
  8. Thioredoxin-like protein, N-terminal domain [64056]
    1. Human (Homo sapiens) [TaxId: 9606] [64057] (1)
  9. Thiol:disulfide interchange protein DsbD, C-terminal domain (DsbD-gamma) [102435]
    1. Escherichia coli [TaxId: 562] [102436] (8)
  10. Thioredoxin-like protein p19, TLP19 [110604]
    1. Human (Homo sapiens) [TaxId: 9606] [110605] (1)
      SQ O95881 23-172
  11. Hypothetical protein XCC2852 [110606]
    1. Xanthomonas campestris [TaxId: 339] [110607] (2)
      SQ Q8P6W3
  12. Thioredoxin-like protein 2 [117591]
    1. Mouse (Mus musculus) [TaxId: 10090] [117592] (1)
      SQ Q9CQM9 241-336
  13. Thioredoxin-like structure containing protein C330018D20Rik [117593]
    1. Mouse (Mus musculus) [TaxId: 10090] [117594] (1)
      SQ Q9CWB7 21-107
  14. Hypothetical protein PA1234 [142353]
    1. Pseudomonas aeruginosa [TaxId: 287] [142354] (1)
      SQ Q9I4A4 1-166
  15. Bacterocin transport accessory protein Bta [142355]
    1. Streptococcus pneumoniae [TaxId: 1313] [142356] (1)
      SQ Q97PU4 1-115
2. PDI-like [52849] (6)
  duplication: contains two tandem repeats of this fold
  1. Protein disulfide isomerase, PDI [52850]
    1. Human (Homo sapiens) [TaxId: 9606] [52851] (3)
    2. Archaeon Pyrococcus furiosus [TaxId: 2261] [52852] (1)
    3. Archaeon Pyrococcus horikoshii [TaxId: 53953] [89702] (1)
      glutaredoxin-like protein
    4. Fungi (Humicola insolens) [TaxId: 34413] [142357] (2)
      SQ P55059 227-355! SQ P55059 350-459
    5. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [142358] (4)
      SQ P17967 142-239! SQ P17967 23-141! SQ P17967 240-364! SQ P17967 365-504
  2. Alkyl hydroperoxide reductase subunit F (AhpF), N-terminal domain [52853]
    1. Salmonella typhimurium [TaxId: 90371] [52854] (9)
3. Calsequestrin [52855] (1)
  duplication: contains three tandem repeats of this fold
  1. Calsequestrin [52856]
    1. Rabbit (Oryctolagus cuniculus) [TaxId: 9986] [52857] (1)
4. DsbA-like [100953] (4)
  contains an all-alpha subdomain insertion
  1. Disulfide-bond formation facilitator (DsbA) [100954]
    the insert subdomain is a 4-helical bundle
    1. Escherichia coli [TaxId: 562] [100955] (22)
    2. Vibrio cholerae [TaxId: 666] [100956] (1)
      TcpG, periplasmic enzyme required for the maturation of secreted virulence factors
  2. Mitochondrial class kappa glutathione S-transferase [102437]
    contains larger and less compact insertion in the common fold than DsbA
    1. Rat (Rattus norvegicus) [TaxId: 10116] [102438] (1)
  3. Hypothetical protein EF0770 [142359]
    1. Enterococcus faecalis [TaxId: 1351] [142360] (1)
      SQ Q837R1 1-172
5. Glutathione S-transferase (GST), N-terminal domain [52862] (44)
  1. Class pi GST [81358]
    1. Human (Homo sapiens) [TaxId: 9606] [52864] (49)
    2. Pig (Sus scrofa) [TaxId: 9823] [52865] (1)
    3. Mouse (Mus musculus) [TaxId: 10090] [52866] (12)
    4. Onchocerca volvulus [TaxId: 6282] [117595] (2)
      SQ P46427
  2. Class mu GST [81359]
    1. Human (Homo sapiens) [TaxId: 9606] [52867] (29)
      SQ P09488 ! SQ P28161
    2. Rat (Rattus norvegicus) [TaxId: 10116] [52868] (16)
    3. Chicken (Gallus gallus) [TaxId: 9031] [52869] (2)
  3. Class alpha GST [81360]
    1. Human (Homo sapiens), (a1-1) [TaxId: 9606] [52870] (29)
      SQ P08263
    2. Rat (Rattus norvegicus), (a1-1) [TaxId: 10116] [52871] (2)
    3. Mouse (Mus musculus), (a1-1) [TaxId: 10090] [52872] (2)
    4. Mouse (Mus musculus), (a1-4) [TaxId: 10090] [52873] (2)
    5. Mouse (Mus musculus), (a2-2) [TaxId: 10090] [89703] (1)
    6. Schistosoma japonicum [TaxId: 6182] [52878] (14)
      SQ P08515
    7. Blood fluke (Schistosoma haematobium) [TaxId: 6185] [89704] (12)
    8. Fasciola hepatica [TaxId: 6192] [52879] (2)
  4. Class theta GST [81361]
    1. Human (Homo sapiens) [TaxId: 9606] [52874] (3)
  5. Class sigma GST [81362]
    1. Rat (Rattus norvegicus) [TaxId: 10116] [52875] (1)
      synonym: hematopoietic prostaglandin D synthase
    2. Human (Homo sapiens) [TaxId: 9606] [89705] (33)
      SQ O60760
      synonym: hematopoietic prostaglandin D synthase
    3. Fruit fly (Drosophila melanogaster) [TaxId: 7227] [82427] (1)
    4. Squid (Ommastrephes sloani pacificus) [TaxId: 6634] [52876] (2)
    5. Heligmosomoides polygyrus [TaxId: 6339] [110608] (1)
      SQ Q9NJQ6 # Fragment
  6. Class omega GST [81363]
    1. Human (Homo sapiens) [TaxId: 9606] [52877] (1)
  7. Class zeta GST [81364]
    1. Human (Homo sapiens) [TaxId: 9606] [64058] (1)
      maleylacetoacetate isomerase
    2. Mouse-ear cress (Arabidopsis thaliana) [TaxId: 3702] [64059] (1)
  8. Class delta GST [81366]
    formerly a part of class theta enzymes
    1. Mosquito (Anopheles dirus b), isozyme 1-3 [TaxId: 123217] [75234] (1)
    2. Mosquito (Anopheles dirus b), isozyme 1-4 [TaxId: 123217] [75235] (1)
    3. Mosquito (Anopheles dirus b), isozyme 1-5 [TaxId: 123217] [102439] (1)
    4. Mosquito (Anopheles dirus b), isozyme 1-6 [TaxId: 123217] [102440] (1)
    5. African malaria mosquito (Anopheles gambiae), isozyme 1-6 [TaxId: 7165] [102441] (1)
  9. Class tau GST [81365]
    1. Aegilops tauschii, also known as Triticum tauschii [TaxId: 37682] [75236] (1)
    2. Rice (Oryza sativa) [TaxId: 4530] [89706] (1)
  10. Class phi GST [81367]
    1. Mouse-ear cress (Arabidopsis thaliana) [TaxId: 3702] [52880] (2)
    2. Maize (Zea mays), type I [TaxId: 4577] [52881] (2)
    3. Maize (Zea mays), type III [TaxId: 4577] [52882] (1)
  11. Class beta GST [81368]
    1. Escherichia coli [TaxId: 562] [52883] (3)
    2. Proteus mirabilis [TaxId: 584] [52884] (2)
    3. Sphingomonas paucimobilis [TaxId: 13689] [52885] (1)
  12. Pf GST [102442]
    cannot be assigned to any of the known GST classes
    1. Malarial parasite (Plasmodium falciparum) [TaxId: 5833] [102443] (5)
  13. Glutaredoxin 2 [64060]
    similar to class zeta enzymes
    1. Escherichia coli [TaxId: 562] [64061] (1)
  14. Yeast prion protein ure2p, nitrogen regulation fragment [52886]
    similar to class phi enzymes
    1. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [52887] (8)
  15. GST-like domain of elongation factor 1-gamma [82428]
    1. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [82429] (1)
  16. Chloride intracellular channel 1 (clic1) [69514]
    similar to class theta enzymes; the N-domain undergoes a redox-controlled structural transition
    1. Human (Homo sapiens) [TaxId: 9606] [69515] (4)
  17. Hypothetical protein AGR_pAT_752p/Atu5508 [142361]
    putative glutathione S-transferase
    1. Agrobacterium tumefaciens [TaxId: 358] [142362] (2)
      SQ Q7D2W7 1-87
  18. Microsomal prostaglandin E synthase-2 [142363]
    1. Crab-eating macaque (Macaca fascicularis) [TaxId: 9541] [142364] (8)
      SQ Q9N0A4 100-212
6. Phosducin [52888] (2)
  1. Phosducin [52889]
    the transducin beta subunit-binding subdomain is an irregular array of helices in the N-terminal extension
    1. Rat (Rattus norvegicus) [TaxId: 10116] [52890] (3)
    2. Cow (Bos taurus) [TaxId: 9913] [52891] (1)
7. ERP29 N domain-like [52892] (2)
  1. Endoplasmic reticulum protein ERP29, N-terminal domain [52893]
    1. Rat (Rattus norvegicus) [TaxId: 10116] [52894] (1)
  2. Windbeutel, N-terminal domain [102444]
    1. Fruit fly (Drosophila melanogaster) [TaxId: 7227] [102445] (8)
8. spliceosomal protein U5-15Kd [52895] (1)
  1. spliceosomal protein U5-15Kd [52896]
    1. Human (Homo sapiens) [TaxId: 9606] [52897] (5)
9. SH3BGR (SH3-binding, glutamic acid-rich protein-like) [102446] (1)
  related to glutaredoxin 1 (GRX1) but lacks both conserved cysteine residues
  1. SH3BGRL3 [102447]
    1. Mouse (Mus musculus) [TaxId: 10090] [102448] (2)
      SQ Q91VW3
10. KaiB-like [102449] (2)
  Pfam 07689; contains members with alternative folds
  1. Circadian oscillation regulator KaiB [102450]
    the differently folded C-terminal half facilitates oligomerization
    1. Cyanobacterium (Nostoc sp.) pcc 7120 [TaxId: 1180] [102451] (1)
  2. Adaptive-response sensory-kinase SasA, N-terminal domain [117596]
    has a canonical thioredoxin fold
    1. Synechococcus elongatus [TaxId: 32046] [117597] (2)
      SQ Q06904 19-109 # 97% sequence identity
11. DsbC/DsbG C-terminal domain-like [52898] (3)
  elaborated common fold
  1. Disulfide bond isomerase, DsbC, C-terminal domain [52899]
    1. Escherichia coli [TaxId: 562] [52900] (5)
      SQ P21892
    2. Haemophilus influenzae [TaxId: 727] [110609] (1)
      SQ P45111 20-228
  2. Thiol:disulfide interchange protein DsbG, C-terminal domain [110610]
    1. Escherichia coli [TaxId: 562] [110611] (8)
      SQ P77202
12. Glutathione peroxidase-like [52901] (42)
  1. Glutathione peroxidase [52902]
    contains many insertions in the common fold
    1. Cow (Bos taurus) [TaxId: 9913] [52903] (1)
    2. Human (Homo sapiens) [TaxId: 9606] [142365] (2)
      SQ P07203 12-195
  2. Tryparedoxin I [52904]
    1. Crithidia fasciculata [TaxId: 5656] [52905] (8)
    2. Trypanosoma brucei brucei [TaxId: 5702] [89707] (1)
  3. Tryparedoxin II [64062]
    1. Crithidia fasciculata [TaxId: 5656] [64063] (6)
  4. Tryparedoxin peroxidase (thioredoxin peroxidase homologue) [64064]
    1. Crithidia fasciculata [TaxId: 5656] [64065] (1)
    2. Trypanosoma cruzi [TaxId: 5693] [117598] (1)
      SQ O96763
  5. Thioredoxin peroxidase 2 (thioredoxin peroxidase B, 2-cys peroxiredoxin) [52906]
    1. Norway rat (Rattus norvegicus) [TaxId: 10116] [52907] (1)
      heme-binding protein 23, HBP23
    2. Human (Homo sapiens) [TaxId: 9606] [52908] (1)
    3. Plasmodium yoelii [TaxId: 5861] [142366] (1)
      SQ Q86SB2 8-177
  6. Peroxiredoxin 5 [64066]
    1. Human (Homo sapiens) [TaxId: 9606] [64067] (10)
      SQ P30044
  7. 1-Cys peroxiredoxin [52909]
    1. Human (Homo sapiens) [TaxId: 9606] [52910] (1)
    2. Plasmodium yoelii yoelii [TaxId: 73239] [117599] (1)
      SQ Q7RGR1
    3. Malaria parasite (Plasmodium falciparum) [TaxId: 5833] [142367] (2)
      SQ Q5MYR6 60-238
  8. Alkyl hydroperoxide reductase AhpC [69516]
    1. Salmonella typhimurium [TaxId: 90371] [69517] (26)
    2. Mycobacterium tuberculosis [TaxId: 1773] [142368] (3)
      SQ Q7BHK8 2-170
    3. Amphibacillus xylanus [TaxId: 1449] [142369] (10)
      SQ O87200 2-167
  9. N-terminal, Prx domain of Hybrid-Prx5 [89708]
    1. Haemophilus influenzae [TaxId: 727] [89709] (1)
      HI0572
  10. Probable thiol peroxidase PsaD [89710]
    1. Streptococcus pneumoniae [TaxId: 1313] [89711] (1)
  11. Thiol peroxidase Tpx [102452]
    1. Escherichia coli [TaxId: 562] [102453] (1)
    2. Haemophilus influenzae [TaxId: 727] [102454] (1)
      HI0751
    3. Mycobacterium tuberculosis [TaxId: 1773] [117600] (3)
      SQ P66952
  12. Membrane-anchored thioredoxin-like protein TlpA, soluble domain [64068]
    1. Bradyrhizobium japonicum [TaxId: 375] [64069] (1)
  13. Thioredoxin-like protein CcmG (CycY, DsbE) [75237]
    1. Bradyrhizobium japonicum [TaxId: 375] [75238] (1)
    2. Escherichia coli [TaxId: 562] [142370] (1)
      SQ P0AA86 49-184
  14. Thiol-disulfide oxidoreductase ResA [102455]
    1. Bacillus subtilis [TaxId: 1423] [102456] (6)
  15. Soluble secreted antigen MPT53 [102457]
    1. Mycobacterium tuberculosis [TaxId: 1773] [102458] (1)
  16. Thioredoxin-like protein Sco1 (YpmQ), soluble domain [102459]
    1. Bacillus subtilis [TaxId: 1423] [102460] (3)
    2. Human (Homo sapiens) [TaxId: 9606] [142371] (5)
      SQ O75880 138-297
    3. Baker's yeast(Saccharomyces cerevisiae) [TaxId: 4932] [142372] (8)
      SQ P23833 111-262
  17. Phenol hydroxylase, C-terminal domain [52911]
    1. Soil-living yeast (Trichosporon cutaneum) [TaxId: 5554] [52912] (2)
  18. Peroxiredoxin [117601]
    1. Aeropyrum pernix [TaxId: 56636] [117602] (50)
      SQ Q9Y9L0 # APE2278
  19. thiol:disulfide oxidoreductase YkuV [142373]
    1. Bacillus subtilis [TaxId: 1423] [142374] (2)
      SQ O31699 1-143
  20. Lipoprotein DsbF [142375]
    1. Mycobacterium tuberculosis [TaxId: 1773] [142376] (1)
      SQ O53924 47-180
  21. Bacterioferritin comigratory protein [142377]
    1. Archaeon Aeropyrum pernix [TaxId: 56636] [142378] (12)
      SQ Q9YA14 4-163
  22. Plant peroxiredoxin [142379]
    1. Western balsam poplar(Populus trichocarpa) [TaxId: 3694] [142380] (4)
      SQ Q8S3L0 1-162
  23. Putative peroxiredoxin Rv2238c/MT2298 [142381]
    1. Mycobacterium tuberculosis [TaxId: 1773] [142382] (6)
      SQ P65688 1-153
  24. Thioredoxin reductase TsaA [142383]
    1. Helicobacter pylori [TaxId: 210] [142384] (10)
      SQ P56876 1-170
  25. Peptide methionine sulfoxide reductase MsrA/MsrB, N-terminal domain [142385]
    1. Neisseria meningitidis serogroup A [TaxId: 65699] [142386] (3)
      SQ Q9JWM8 33-175
  26. Peroxiredoxin dot5 [142387]
    1. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [142388] (1)
      SQ P40553 59-214
  27. Probable thiol-disulfide isomerase/thioredoxin TTHA0593 [142389]
    1. Thermus thermophilus [TaxId: 274] [142390] (2)
      SQ Q5SKQ0 2-188
  28. Peroxiredoxin-3 (AOP-1, SP-22) [142391]
    1. Cow (Bos taurus) [TaxId: 9913] [142392] (12)
      SQ P35705 63-220
13. Thioredoxin-like 2Fe-2S ferredoxin [52918] (1)
  1. Thioredoxin-like 2Fe-2S ferredoxin [52919]
    1. Aquifex aeolicus [TaxId: 63363] [52920] (4)
14. ArsC-like [69518] (3)
  Pfam 03960
  1. Arsenate reductase ArsC [69519]
    1. Escherichia coli [TaxId: 562] [69520] (3)
  2. Hypothetical protein PA3664 (YffB) [117603]
    1. Pseudomonas aeruginosa [TaxId: 287] [117604] (1)
      SQ Q9HXX5
  3. Regulatory protein Spx [142393]
    1. Bacillus subtilis [TaxId: 1423] [142394] (1)
      SQ O31602 1-114
15. Txnl5-like [110612] (2)
  Pfam 06110
  1. Putative 42-9-9 protein (thioredoxin containing protein Txnl5) [110613]
    1. Mouse (Mus musculus) [TaxId: 10090] [110614] (1)
      SQ Q9D0Y4
    2. Human (Homo sapiens) [TaxId: 9606] [110615] (1)
      SQ Q9BRA2
16. YuzD-like [117605] (1)
  Pfam 07315
  1. Hypothetical protein SA0798 [117606]
    1. Staphylococcus aureus [TaxId: 1280] [117607] (1)
      SQ Q7A6J8
17. YKR049C-like [142395] (1)
  Pfam 07955; DUF1687; contains an all-alpha insert subdomain
  1. Hypothetical protein YKR049C [142396]
    1. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [142397] (1)
      SQ P36141 1-133
18. Atu2684-like [142398] (1)
  Pfam 06764; DUF1223; contains extra C-terminal domain of Immunoglobulin-like fold (scop_cf 48725), intimately associated with the N-terminal thioredixin-like domain and contributing to the active site
  1. Hypothetical protein Atu2684 [142399]
    1. Agrobacterium tumefaciens [TaxId: 358] [142400] (1)
      SQ Q8UC14 38-262
19. HyaE-like [142401] (2)
  Pfam 07449; have evolved a different function; contains no conserved cysteine residues
  1. Hydrogenase-1 operon protein HyaE [142402]
    1. Escherichia coli [TaxId: 562] [142403] (1)
      SQ P19931 1-132
    2. Salmonella typhimurium [TaxId: 90371] [142404] (5)
      SQ Q8ZP25 7-125
20. NQO2-like [142405] (1)
  complex I 24 kDa subunit; contains 2Fe-2S cluster in the active site; includes extra N-terminal four-helical bundle
  1. NADH-quinone oxidoreductase chain 2, NQO2 [142406]
    1. Thermus thermophilus [TaxId: 274] [142407] (4)
      SQ Q56221 2-179
21. Mitochondrial ribosomal protein L51/S25/CI-B8 domain [142408] (1)
  Pfam 05047; "minimalized" version of the thioredoxin-like fold; variable positions for cysteine residues in the putative active site
  1. NADH-ubiquinone oxidoreductase b8 subunit, CI-B8 [142409]
    1. Human (Homo sapiens) [TaxId: 9606] [142410] (1)
      SQ O43678 14-98
22. Selenoprotein W-related [142411] (3)
  Pfam 05169; "minimalized" version of the thioredoxin-like fold
  1. Selenoprotein sep15 [142412]
    1. Drosophila melanogaster [TaxId: 7227] [142413] (1)
      SQ Q9VVJ7 62-178
  2. Hypothetical protein Atu0228 [142414]
    1. Agrobacterium tumefaciens [TaxId: 358] [142415] (4)
      SQ Q8UIR5 4-89
  3. Selenoprotein M [142416]
    1. Mouse (Mus musculus) [TaxId: 10090] [142417] (1)
      SQ Q8VHC3 25-144
23. UAS domain [159589] (1)
  SMART 00594
  1. UBX domain-containing protein 7 [159590]
    1. Human (Homo sapiens) [TaxId: 9606] [159591] (1)
      SQ O94888 131-270
RNA 3'-terminal phosphate cyclase, RPTC, insert domain [52913] (1)
uperfamily
1. RNA 3'-terminal phosphate cyclase, RPTC, insert domain [52914] (1)
  1. RNA 3'-terminal phosphate cyclase, RPTC, insert domain [52915]
    1. Escherichia coli [TaxId: 562] [52916] (2)