がん抑制 よくせい遺伝 いでん じゃありませんでした
gan'yokuseiiden koja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 癌抑制遺伝子

1. Was not a tumor suppressor gene.; Was not an anti-cancer gene.

Past/Perfective
Negative
Polite
Terminal Form