Protein Information

Name PSST subunits
Synonyms CI 20kD; Complex I 20kD; My017 protein; NADH dehydrogenase (ubiquinone) Fe S protein 7 (20kD) (NADH coenzyme Q reductase); NADH ubiquinone oxidoreductase Fe S protein 7; NADH ubiquinone oxidoreductase 20 kDa subunit; NADH ubiquinone oxidoreductase Fe S protein 7 variant; NDUFS 7…

Compound Information

Name sulfur
CAS sulfur

Reference List

PubMed Abstract RScore(About this table)
19366614 Zickermann V, Kerscher S, Zwicker K, Tocilescu MA, Radermacher M, Brandt U: Architecture of complex I and its implications for electron transfer and proton pumping. Biochim Biophys Acta. 2009 Jun;1787(6):574-83. Epub 2009 Feb 7.

The ubiquinone reduction site close to iron-sulfur cluster N2 at the interface of the 49-kDa and PSST subunits has been mapped by extensive site directed mutagenesis.
31(0,1,1,1) Details
20133838 Roessler MM, King MS, Robinson AJ, Armstrong FA, Harmer J, Hirst J: Direct assignment of EPR spectra to structurally defined iron-sulfur clusters in complex I by double electron-electron resonance. Proc Natl Acad Sci U S A. 2010 Feb 2;107(5):1930-5. Epub 2010 Jan 19.

EPR studies on complex I from Bos taurus have established that EPR signals N1b, N2 and N3 arise, respectively, from the 2Fe cluster in the 75 kDa subunit, and from 4Fe clusters in the PSST and 51 kDa subunits (positions 2, 7, and 1 along the seven-cluster chain extending from the flavin).
1(0,0,0,1) Details