TABLE 1:

Strain backgrounds and phenotypes of met4Δ alleles.

Strain background	met4Δ growth phenotypea	Reference
S288C	–	Mountain et al. (1993)
S288C	–	Fauchon et al. (2002)b
S288C	Inviable	Giaever et al. (2002)
S288C	Slow-growing	Snoek and Steensma (2006)
W303	–	Patton et al. (2000)
W303	–	Aranda and del Olmo (2004)c
W303	–	Leroy et al. (2006)d
W303	–	Lee et al. (2010)d
BF264-15D	–	Kaiser et al. (2000)e
CY4	–	Wheeler et al. (2002)f
4094-B	–	Masselot and De Robichon-Szulmajster (1975)g

^aPhenotypes in the presence of exogenous methionine. –,no phenotype besides methionine auxotrophy.

^bStrains in this study are made from the YPH98 strain, derived from YNN216, which is “congenic with S288C” (Sikorski and Hieter, 1989).

^cThis study used a met4Δ strain in the W303 background that was created and used in earlier studies (Thomas et al., 1992; Kuras et al., 1996).

^dThis study used a met4Δ strain in the W303 background that was created in an earlier study (Rouillon et al., 2000).

^eThis study used the BF264-15D strain from Bruce Futcher (Reed et al., 1985).

^fThis study used the CY4 strain first mentioned in a previous study (Grant et al., 1996).

^gThis study used a methionine auxotroph that was isolated by UV mutagenesis. The identity of the mutation is not known.