Protein Information

Name TYKY
Synonyms CI 23kD; Complex I 23kD; NADH dehydrogenase (ubiquinone) Fe S protein 8 (23kD) (NADH coenzyme Q reductase); NADH ubiquinone oxidoreductase Fe S protein 8; NADH ubiquinone oxidoreductase 23 kDa subunit; NDUFS 8; NDUFS8; TYKY…

Compound Information

Name rotenone
CAS

Reference List

PubMed Abstract RScore(About this table)
11358527 Fang J, Wang Y, Beattie DS: Isolation and characterization of complex I, rotenone-sensitive NADH: ubiquinone oxidoreductase, from the procyclic forms of Trypanosoma brucei. Eur J Biochem. 2001 May;268(10):3075-82.

Four polypeptides of the partially purified enzyme were identified as the homologous subunits of complex I (51 kDa, PSST, TYKY, and ND4) by immunoblotting with antibodies raised against subunits of Paracoccus denitrificans and against synthetic peptides predicted from putative complex I subunit genes encoded by mitochondrial and nuclear T. brucei DNA.
2(0,0,0,2) Details
1332758 Finel M, Skehel JM, Albracht SP, Fearnley IM, Walker JE: Resolution of NADH:ubiquinone oxidoreductase from bovine heart mitochondria into two subcomplexes, one of which contains the redox centers of the enzyme. Biochemistry. 1992 Nov 24;31(46):11425-34.

The line shapes of the EPR spectra of the Fe-S clusters are slightly broadened relative to spectra measured on complex I purified by conventional means, and the quinone reductase activity is insensitive to rotenone.
Three other potential Fe-S proteins, the 75- and 24-kDa subunits and a 23-kDa subunit (N-terminal sequence TYKY), are also present.
1(0,0,0,1) Details
7957254 Finel M, Majander AS, Tyynela J, De Jong AM, Albracht SP, Wikstrom M: Isolation and characterisation of subcomplexes of the mitochondrial NADH:ubiquinone oxidoreductase (complex I). Eur J Biochem. 1994 Nov 15;226(1):237-42.

E. (1992) Biochemistry 31, 11425-11434], but it retains the 75-, 51-, 49-, 30-, 24-, 23- (TYKY) and 20-kDa (PSST) subunits, which are suggested to form a functional core that comprises the EPR-detectable Fe-S clusters 1-4, and FMN.
In addition, the Q-1 reductase activity of all the subcomplexes is insensitive to rotenone.
1(0,0,0,1) Details