不凍 ふとうタンパク しつじゃなかったです
futō tampaku shitsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 不凍タンパク質

1. Wasn't antifreeze protein.; Wasn't a freeze-resistant protein.

Past/Perfective
Negative
Polite
Casual Register