Conserved RNA structure
The caiA RNA motif is a conserved RNA structure that was discovered by bioinformatics.[1]
caiA motifs are found in Clostridiales.
caiA RNAs are found upstream of genes whose protein products function as acyl CoA dehydrogenases, although in one case the annotated substrate is butyryl-CoA. caiA RNAs might regulate these genes (i.e. function as cis-regulatory elements), but it is also possible that their association with these genes is a coincidence.
References