title: Early histocompatibility: color the mechanism green and red.
abstract: Allorecognition in Hydractinia, a cnidarian, is governed by two different, highly polymorphic genes encoding transmembrane proteins. Using a fluorescent cell read-out system, a new study now shows that the basis for specificity involves homophilic interactions between extracellular domains.
authors.affiliation: Department of Pediatrics, University of South Florida, 140 Seventh Avenue South, St. Petersburg, FL 33701, USA. Electronic address: glitman1@jhmi.edu.
authors.forename: Gary W
authors.initials: GW
authors.lastname: Litman
authors.affiliation: Department of Pediatrics, University of South Florida, 140 Seventh Avenue South, St. Petersburg, FL 33701, USA.
authors.forename: Larry J
authors.initials: LJ
authors.lastname: Dishaw
mesh_terms: D000818:Animals; D003116:Color; D006648:Histocompatibility; D037402:Hydrozoa