Structural Classification of Proteins

Fold: Zincin-like

: contains mixed beta sheet with connection over free side of the sheet

Lineage:

Root: scop
Class: Alpha and beta proteins (a+b) [53931]
Mainly antiparallel beta sheets (segregated alpha and beta regions)
Fold: Zincin-like [55485]
contains mixed beta sheet with connection over free side of the sheet

Superfamilies:

Metalloproteases ("zincins"), catalytic domain [55486] (17)
uperfamily
1. Zinc protease [55487] (1)
  single domain
  1. Zinc protease [55488]
    1. Streptomyces caespitosus [TaxId: 53502] [55489] (2)
2. Fungal zinc peptidase [64335] (2)
  single domain with insertions in the common fold
  1. Fungal zinc peptidase [64336]
    1. Grifola frondosa [TaxId: 5627] [64337] (4)
    2. Aspergillus oryzae, deuterolysin [TaxId: 5062] [69774] (1)
3. Thermolysin-like [55490] (4)
  includes alpha-helical C-terminal domain characteristic for the family
  1. Elastase [63413]
    1. Pseudomonas aeruginosa [TaxId: 287] [55492] (2)
      SQ P14756 198-495
  2. Thermolysin [63414]
    1. Bacillus thermoproteolyticus [TaxId: 1427] [55494] (59)
      SQ P00800
  3. Neutral protease [63415]
    1. Bacillus cereus, strain dsm 3101 [TaxId: 1396] [55496] (2)
  4. Aureolysin [63416]
    1. Staphylococcus aureus [TaxId: 1280] [55498] (1)
4. Leukotriene A4 hydrolase catalytic domain [64338] (1)
  adopts thermolysin-like fold
  1. Leukotriene A4 hydrolase catalytic domain [64339]
    1. Human (Homo sapiens) [TaxId: 9606] [64340] (15)
      SQ P09960
5. Neutral endopeptidase (neprilysin) [55502] (1)
  1. Neutral endopeptidase (neprilysin) [55503]
    contains thermolysin-like catalytic domain (residues 419-749)
    the N-terminal half of the structure is multihelical
    1. Human (Homo sapiens) [TaxId: 9606] [55504] (6)
      SQ P08473 54-749
6. Neurolysin-like [55505] (6)
  combines M2, M3 and M32 families of metalloproteases
  the N-terminal half of the structure is multihelical; the C-terminal half contains the thermolysin-like catalytic domain
  1. Neurolysin (endopeptidase 24.16, thimet oligopeptidase) [55506]
    M3 family member; the thermolysin-like catalytic domain consists of residues 352-674
    1. Rat (Rattus norvegicus) [TaxId: 10116] [55507] (1)
    2. Human (Homo sapiens) [TaxId: 9606] [111081] (1)
      SQ P52888
  2. Thermostable carboxypeptidase 1 [82731]
    M32 (Taq) family member; overall fold is similar to that of neurolysin but is less elaborated
    1. Archaeon Pyrococcus furiosus [TaxId: 2261] [82732] (3)
  3. Angiotensin converting enzyme, ACE [82733]
    M2 family member; overall fold is similar to that of neurolysin but is less elaborated
    1. Human (Homo sapiens) [TaxId: 9606] [82734] (5)
      SQ P22966
    2. Fruit fly (Drosophila melanogaster) [TaxId: 7227] [89991] (3)
  4. Angiotensin converting enzyme 2, ACE2 [103125]
    1. Human (Homo sapiens) [TaxId: 9606] [103126] (4)
7. Anthrax toxin lethal factor, N- and C-terminal domains [69775] (1)
  1. Anthrax toxin lethal factor, N- and C-terminal domains [69776]
    duplication: each domain adopts a thermolysin-like fold, but the proteolytic activity resides only in the C-terminal domain
    1. Bacillus anthracis [TaxId: 1392] [69777] (12)
8. Leishmanolysin [55499] (1)
  1. Leishmanolysin [55500]
    the catalytic domain is N-terminal (residues 100-272)
    the rest of structure will be classified in future releases
    1. Leishmania major [TaxId: 5664] [55501] (1)
9. Serralysin-like metalloprotease, catalytic (N-terminal) domain [55508] (4)
  characteristic HEXXHXXGXXH motif and Met located near C-terminus
  1. Metalloprotease [55509]
    the rest of protein is all-beta sandwich containing a parallel beta-helix
    1. Pseudomonas aeruginosa [TaxId: 287] [55510] (3)
      alkaline protease
    2. Serratia marcescens [TaxId: 615] [55511] (4)
      Serralysin
    3. Erwinia chrysanthemi [TaxId: 556] [82735] (5)
      Protease C
    4. Pseudomonas sp., tac ii 18 [TaxId: 306] [82736] (8)
      psychrophilic alkaline protease
10. Clostridium neurotoxins, catalytic domain [55512] (4)
  1. Botulinum neurotoxin [55513]
    1. Clostridium botulinum, serotype A [TaxId: 1491] [55514] (15)
      SQ P10845 1-419
    2. Clostridium botulinum, serotype B [TaxId: 1491] [55515] (18)
    3. Clostridium botulinum, serotype E [TaxId: 1491] [111082] (2)
      SQ Q00496 1-421
    4. Clostridium butyricum [TaxId: 1492] [160551] (2)
11. Astacin [55516] (1)
  1. Astacin [55517]
    1. European fresh water crayfish (Astacus astacus) [TaxId: 6715] [55518] (8)
12. Reprolysin-like [55519] (8)
  Pfam 01421
  1. Snake venom metalloprotease [55520]
    1. Eastern diamondback rattlesnake (Crotalus adamanteus), adamalysin II [TaxId: 8729] [55521] (4)
    2. Western diamonback rattlesnake (Crotalus atrox), atrolysin C [TaxId: 8730] [55522] (3)
    3. Taiwan habu (Trimeresurus mucrosquamatus), atrolysin E [TaxId: 103944] [75495] (4)
    4. Five-pace snake (Agkistrodon acutus), acutolysin A [TaxId: 36307] [55523] (2)
    5. Chinese five-pace snake (Agkistrodon acutus), acutolysin C [TaxId: 36307] [55524] (1)
    6. Terciopelo (Bothrops asper), bap1 [TaxId: 8722] [103127] (1)
    7. Habu (Trimeresurus flavoviridis), Trimerelysin II [TaxId: 88087] [111083] (1)
      SQ P20165
  2. ADAM33 [118046]
    1. Human (Homo sapiens) [TaxId: 9606] [118047] (2)
      SQ Q9BZ11 204-409
13. TNF-alpha converting enzyme, TACE, catalytic domain [55525] (1)
  1. TNF-alpha converting enzyme, TACE, catalytic domain [55526]
    1. Human (Homo sapiens) [TaxId: 9606] [55527] (12)
14. Matrix metalloproteases, catalytic domain [55528] (15)
  1. Fibroblast collagenase (MMP-1) [55529]
    1. Human (Homo sapiens) [TaxId: 9606] [55530] (14)
      SQ P03956 32-466
    2. Pig (Sus scrofa) [TaxId: 9823] [55531] (3)
  2. MMP-2 [69778]
    1. Human (Homo sapiens) [TaxId: 9606] [69779] (1)
  3. Neutrophil collagenase (MMP-8) [55532]
    1. Human (Homo sapiens) [TaxId: 9606] [55533] (21)
  4. Gelatinase A [55534]
    1. Human (Homo sapiens) [TaxId: 9606] [55535] (4)
  5. Stromelysin-1 (MMP-3) [55536]
    1. Human (Homo sapiens), fibroblast [TaxId: 9606] [55537] (36)
  6. Matrilysin (MMP-7) [55538]
    1. Human (Homo sapiens) [TaxId: 9606] [55539] (4)
  7. Gelatinase B (MMP-9) [75496]
    1. Human (Homo sapiens) [TaxId: 9606] [75497] (13)
  8. Stromelysin-2 (MMP-10) [103128]
    1. Human (Homo sapiens) [TaxId: 9606] [103129] (1)
  9. Stromelysin-3 (MMP-11) [64341]
    1. Mouse (Mus musculus) [TaxId: 10090] [64342] (1)
  10. Macrophage elastase (MMP-12) [69780]
    1. Human (Homo sapiens) [TaxId: 9606] [69781] (18)
      SQ P39900 106-263 ! SQ P39900 106-264
  11. Collagenase-3 (MMP-13) [55540]
    1. Human (Homo sapiens) [TaxId: 9606] [55541] (34)
    2. Mouse (Mus musculus) [TaxId: 10090] [55542] (1)
  12. Membrane-type matrix metalloproteinase (CDMT1-MMP) [55543]
    1. Human (Homo sapiens) [TaxId: 9606] [55544] (2)
  13. Matrix metalloproteinase-16 (MMP-16) [103130]
    1. Human (Homo sapiens) [TaxId: 9606] [103131] (1)
15. Predicted metal-dependent hydrolase [103132] (3)
  Pfam 02130; UPF0054; COG0319; MMP-like fold with a different sequence motif in the putative active site
  1. Hypothetical protein Aq_1354 [103133]
    1. Aquifex aeolicus [TaxId: 63363] [103134] (1)
  2. Hypothetical protein YbeY [118048]
    1. Escherichia coli [TaxId: 562] [118049] (1)
      SQ P77385
  3. Hypothetical protein TM1509 [118050]
    1. Thermotoga maritima [TaxId: 2336] [118051] (1)
      SQ Q9X1J7
16. Caur0242-like [160552] (1)
  Pfam 10103; DUF2342; there is a characteristic HExxH motif but no metal ion bound to it in the first structure.
  1. Uncharacterized protein Caur0242 [160553]
    1. Chloroflexus aurantiacus [TaxId: 1108] [160554] (1)
      SQ A9WCA2 43-391
17. TTHA0227-like [160555] (2)
  PF06262; DUF1025; minimal zincin fold that retains 3-stranded mixed beta-sheet and contains HExxH motif in the C-terminal helix; no metal ion bound to this motif is observed in the first determined structures
  1. Uncharacterized protein TTHA0227 [160556]
    1. Thermus thermophilus [TaxId: 274] [160557] (2)
      SQ Q5SLR6 2-108
  2. Uncharacterized protein Acel_2062 [160558]
    1. Acidothermus cellulolyticus [TaxId: 28049] [160559] (2)
      SQ A0LWM4 1-113
beta-N-acetylhexosaminidase-like domain [55545] (3)
contains similar fold but lacks its catalytic centre
uperfamily
1. beta-N-acetylhexosaminidase domain [55546] (4)
  family GH20
  1. Bacterial chitobiase, Domain 2 [55547]
    1. Serratia marcescens [TaxId: 615] [55548] (4)
  2. beta-N-acetylhexosaminidase, N-terminal domain [64343]
    1. Streptomyces plicatus [TaxId: 1922] [64344] (6)
  3. beta-hexosaminidase B, N-terminal domain [89992]
    1. Human (Homo sapiens) [TaxId: 9606] [89993] (12)
  4. beta-hexosaminidase A [160560]
    1. Human (Homo sapiens) [TaxId: 9606] [160561] (8)
      SQ P06865 23-166
2. alpha-D-glucuronidase, N-terminal domain [82737] (2)
  family GH67
  1. alpha-D-glucuronidase, N-terminal domain [82738]
    inverting reaction mechanism
    1. Pseudomonas cellulosa [TaxId: 155077] [82739] (5)
    2. Bacillus stearothermophilus [TaxId: 1422] [82740] (7)
3. Hyaluronidase N-terminal domain-like [143618] (2)
  1. Hyaluronidase N-terminal domain [143619]
    1. Clostridium perfringens [TaxId: 1502] [143620] (6)
      SQ Q8XL08 41-178
  2. Glucosaminidase GH84, N-terminal domain [143621]
    1. Bacteroides thetaiotaomicron [TaxId: 818] [143622] (12)
      SQ Q89ZI2 25-147