Template:Infobox protein family A cikin ilmin halittar kwayoyin halitta, yankin YYY yanki ne na furotin wanda ake ganin yana da mahimmanci a siginar siginar kwayan cuta, amma ba a san ainihin aikin wannan yankin furotin ba. An sanya masa suna ne bayan wasu tsare -tsare uku da aka adana a cikin jeri. Yankin ya zama wani ɓangare na yankin firikwensin periplasmic wanda ke ɗaure zuwa disaccharides marasa ƙoshin lafiya. IAn samo mafi yawancin wannan yankin ga C-terminus na masu siyar da beta (INTERPRO) a cikin dangin masu sarrafa abubuwa biyu. Koyaya ana kuma samun su akai -akai a SWISSPROTba tare da sauran wuraren gudanar da siginar ba. Tsarin wannan yankin yana ƙunshe da madaurin beta 8 da aka shirya a cikin sandwich ɗin Immunoglobulin-like.  Template:InterPro content