UVR8 — Lactuca sativa

Summary

LsUVR8, also known as UVR8 or LsPROTON1, encodes a protein belonging to the RCC1/BLIP-II family, containing RCC2 and AT-hook DNA-binding domains. The gene product is annotated with small GTPase binding activity and is associated with photomorphogenesis, pigmentation, and response to stress. It is linked to upregulation of attachment of spindle microtubules to kinetochore and CPC localization to kinetochore. The protein localizes to both the membrane and nucleus. LsUVR8 is associated with shoot fresh weight, photosynthetic rate, stomatal resistance, and anthocyanin content. It is also linked to rosette diameter plasticity. Studies of related genes in other species link the family to altered rosette growth under nitrogen limitation and traits including plant height and seed maturation.