raku plasmamembraanil asuvate valkude perekond, mille liikmed seostuvad Ca2+-ioonidest sõltuvalt teiste rakkude pinnal olevate glükoproteiinide või glükolipiidide koostises olevate oligosahhariididega, tekitades ajutisi rakk-rakk ühendusi, The selectins (cluster of differentiation 62 or CD62) are a family of cell adhesion molecules (or CAMs). All selectins are single-chain transmembrane glycoproteins that share similar properties to C-type lectins due to a related amino terminus and calcium-dependent binding. Selectins bind to sugar moieties and so are considered to be a type of lectin, cell adhesion proteins that bind sugar polymers.