No phenotype alone. Partially suppresses vg allele. Does not suppress vgnp or vg83b27 (or vk). Survive well on Sang (auxotrophic) medium. Strain is highly sensitive to aminopterin and to fluorodeoxyuridine, and has the highest TK and DHFR activities within the strains tested (including Oregon R controls).
Restriction map of vg locus in suppressed strain is unchanged from wt. Allelic relationship of this locus to other Su(vg) loci not discussed.