The Enzyme Database

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EC 1.8.1.12     
Accepted name: trypanothione-disulfide reductase
Reaction: trypanothione + NADP+ = trypanothione disulfide + NADPH + H+
For diagram of trypanothione biosynthesis, click here
Glossary: spermidine = N-(3-aminopropyl)butane-1,4-diamine
trypanothione = N1,N8-bis(glutathionyl)spermidine
Other name(s): trypanothione reductase; NADPH2:trypanothione oxidoreductase
Systematic name: trypanothione:NADP+ oxidoreductase
Comments: Trypanothione disulfide is the oxidized form of N1,N8-bis(glutathionyl)-spermidine from the insect-parasitic trypanosomatid Crithidia fasciculata. The enzyme from Crithidia fasciculata is a flavoprotein (FAD), whose activity is dependent on a redox-active cystine at the active centre. (cf. EC 1.8.1.7, glutathione-disulfide reductase)
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 102210-35-5
References:
1.  Shames, S.L., Fairlamb, A.H., Cerami, A. and Walsh, C.T. Purification and characterization of trypanothione reductase from Crithidia fasciculata, a newly discovered member of the family of disulfide-containing flavoprotein reductases. Biochemistry 25 (1986) 3519–3526. [PMID: 3718941]
2.  Marsh, I.R. and Bradley, M. Substrate specificity of trypanothione reductase. Eur. J. Biochem. 243 (1977) 690–694. [DOI] [PMID: 9057833]
3.  Cunningham, M.L. and Fairlamb, A.H. Trypanothione reductase from Leishmania donovani. Purification, characterisation and inhibition by trivalent antimonials. Eur. J. Biochem. 230 (1995) 460–468. [DOI] [PMID: 7607216]
[EC 1.8.1.12 created 1989 as EC 1.6.4.8, transferred 2002 to EC 1.8.1.12]
 
 


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