Procabacteriaceae

{{Short description|Family of bacteria}}

{{Taxobox

| name = Procabacteriaceae

| domain = Bacteria

| phylum = Pseudomonadota

| classis = Betaproteobacteria

| ordo = "Procabacteriales"

| familia = "Procabacteriaceae"

| subdivision_ranks = Genus and species

| subdivision =

• Ca. "Procabacter"
• Ca. "Procabacter acanthamoebae"

}}

"Procabacteriaceae" is a Candidatus family of uncultivated Gram-negative Betaproteobacteria. The sole genus, "Candidatus Procabacter", was identified as an obligate endosymbiont of Acanthamoeba.{{cite journal |last=Horn |first=M |last2=Fritsche |first2=TR |last3=Linner |first3=T |last4=Gautom |first4=RK |last5=Harzenetter |first5=MD |last6=Wagner |first6=M |date=March 2002 |title=Obligate bacterial endosymbionts of Acanthamoeba spp. related to the beta-Proteobacteria: proposal of 'Candidatus Procabacter acanthamoebae' gen. nov., sp. nov |journal=International Journal of Systematic and Evolutionary Microbiology |volume=52 |issue=Pt 2 |pages=599–605 |doi=10.1099/00207713-52-2-599 |pmid= 11931173 |doi-access=free }}{{open access}}{{cite journal |last=Heinz |first=E |last2=Kolarov |first2=I |last3=Kästner |first3=C |last4=Toenshoff |first4=ER |last5=Wagner |first5=M |last6=Horn |first6=M |date=June 2007 |title=An Acanthamoeba sp. containing two phylogenetically different bacterial endosymbionts |journal=Environmental Microbiology |volume=9 |issue=6 |pages=1604–1609 |doi=10.1111/j.1462-2920.2007.01268.x |pmid= 17504498 |pmc=1974821}}{{open access}}