Nepentezin

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Nepentezin
Identifikatori
EC broj3.4.23.12
CAS broj9073-80-7
Baze podataka
IntEnzIntEnz pregled
BRENDABRENDA pristup
ExPASyNiceZyme pregled
KEGGKEGG pristup
MetaCycmetabolički put
PRIAMprofil
Strukture PBPRCSB PDB PDBe PDBsum

Nepentezin (EC 3.4.23.12, nepentesna aspartička proteinaza, nepentesno kiselinska proteinaza, nepentacin, nepentazin, aspartilna endopeptidaza) je enzim.[1][2][3][4][5][6] Ovaj enzim katalizuje sledeću hemijsku reakciju

Specifičnost je slična pepsinu, ali dodatno se razlažu veze na obe strane ostatka Asp i u Lys-Arg

Ovaj enzim je prisutan u biljkama Nepenthes spp. i Drosera peltata.

Reference[uredi]

  1. ^ Amagase, S., Nakayama, S. and Tsugita, A. (1969). „Acid protease in Nepenthes. II. Study on the specificty of nepenthesin”. J. Biochem. (Tokyo). 66: 431—439. PMID 5354017. 
  2. ^ Garg, G.K. & Virupaksha, T.K. (1970). „Acid protease from germinated sorghum. 2. Substrate specificity with synthetic peptides and ribonuclease A”. Eur. J. Biochem. 17: 4—12. PMID 5486576. 
  3. ^ Shinano, S. & Fukushima, K. (1971). „Studies on lotus seed protease. Part III. Some physicochemical and enzymic properties”. Agric. Biol. Chem. 35: 1488—1494. 
  4. ^ Amagase, S. (1972). „Digestive enzymes in insectivorous plants. III. Acid proteases in the genus Nepenthes and Drosera peltata”. J. Biochem. (Tokyo). 72: 73—81. PMID 5069751. 
  5. ^ Takahashi, K., Chang, W-J. and Ko, J-S. (1974). „Specific inhibition of acid proteases from brain, kidney, skeletal muscle, and insectivorous plants by diazoacetyl-DL-norleucine methyl ester and by pepstatin”. J. Biochem. (Tokyo). 76: 897—899. PMID 4436292. 
  6. ^ Tökés, Z.A., Woon, W.C. and Chambers, S.M. (1974). „Digestive enzymes secreted by the carnivorous plant Nepenthes macferlani L”. Planta. 119: 39—46. PMID 16526095. 

Literatura[uredi]

Spoljašnje veze[uredi]