CPT1 — Lactuca sativa

Summary

LsCPT1 (CPT1) on lettuce chromosome 6 encodes a protein with dimethylallylcistransferase, rubber cis-polyprenylcistransferase, dehydrodolichyl diphosphate synthase, and zFPS activities, and belongs to the UPP_synth-like family. The gene is associated with polyprenol anabolism, plastid membrane organization, virus-induced post-transcriptional gene silencing, and response to cold. Its product localizes to the chloroplast stroma, endoplasmic reticulum, and cytosol. Studies of the Arabidopsis relative CPT1 link the family to dolichol and cis-polyisoprenoid biosynthesis. Sequence similarity connections also associate the family with salt response and stomatal resistance traits.