Fold: all-alpha NTP pyrophosphatases [101385]
multihelical: dimeric 4-helical bundle surrounded by other helices; oligomerizes further in a tetramer
Superfamily: all-alpha NTP pyrophosphatases [101386]
basic module consist of 5 active site-forming helices; four from one subunit/structural repeat; the fifth from the other subunit/repeat uperfamily