This family consists of Halobacterium gas vesicle protein C sequences which are thought to confer stability to the gas vesicle membranes [1,2].

1: Three different but related gene clusters encoding gas vesicles in halophilic archaea. Englert C, Kruger K, Offner S, Pfeifer F; J Mol Biol 1992;227:586-592. PMID:1404376

2: Transcript analysis of the c-vac region and differential synthesis of the two regulatory gas vesicle proteins GvpD and GvpE in Halobacterium salinarium PHH4. Kruger K, Pfeifer F; J Bacteriol 1996;178:4012-4019. PMID:8763925