M. Csukai et al., ISOLATION AND COMPLETE SEQUENCE OF CBR, A GENE ENCODING A PUTATIVE CYTOCHROME-B REDUCTASE IN SACCHAROMYCES-CEREVISIAE, European journal of biochemistry, 219(1-2), 1994, pp. 441-448
We have isolated and characterised a novel yeast gene, CBR (cytochrome
b reductase), encoding a 35-kDa yeast novobiocin-binding protein. The
predicted protein sequence of CBR displays considerable similarity to
both plant nitrate reductases and mammalian cytochrome b(5) reductase
s indicating that it is a putative member of the flavoprotein pyridine
-nucleotide-cytochrome-reductase family. Disruption of CBR is not leth
al under various growth conditions, suggesting the presence of some fu
nctional overlap with other reductases, possibly with the cytochrome P
-450 reductase.