This family consists several of several uncharacterised proteins from the bacterium Coxiella burnetii. Coxiella burnetii is the causative agent of the Q fever disease.

1: Plasmid-homologous sequences in the chromosome of plasmidless Coxiella burnetii Scurry Q217. Willems H, Ritter M, Jager C, Thiele D; J Bacteriol 1997;179:3293-3297. PMID:9150226

2: Variation in immune response genes and chronic Q fever. Concepts: preliminary test with post-Q fever fatigue syndrome. Helbig KJ, Heatley SL, Harris RJ, Mullighan CG, Bardy PG, Marmion BP; Genes Immun 2003;4:82-85. PMID:12595908