Table 1. Potential Candidate Genes for Yeast Thiosulfate Sulfurtransferase^a.

	gene
function	name	location	molecular weight (Da)	isoelectric point (pI)	no. of cysteine residues
thiosulfate sulfurtransferaseb	unknown	unknown	∼17000	5.1	1
unknown	RDL1	YOR285W	15413	5.91	1
unknown	RDL2	YOR286W	16697	9.65	1
thiolation tRNA	TUM1	YOR251C	34219	5.71	4
thiolation tRNA	UBA4	YHR111W	49361	6.12	13
phosphatase	YCH1	YGR203W	17248	7.01	2
thiolation tRNA, iron–sulfur cluster biogenesis	NFS1	YCL017C	54467	8.35	6
lipoic acid biosynthesis	LIP5	YOR196C	46247	9.55	10
biotin biosynthesis	BIO2	YGR286C	41884	8.76	10
thiolation tRNA	SLM3	YDL033C	47049	8.72	6
mitochondrial inner membrane transporterc	OAC1	YKL120W	35153	10.37	3

^aUnless otherwise noted, genes were retrieved by searching the S. cerevisiae genome database (http://www.yeastgenome.org) for entries that contained the term “sulfurtransferase” in the gene annotation or description.

^bData reported by Uhteg and Westley⁴⁰ for the enzyme isolated from S. cerevisiae.

^cGene retrieved using “thiosulfate” as the search term.