PIP2-2 — Lactuca sativa

Summary

LSAT_V11C100026190, designated PIP2-2 on chromosome 1 of garden lettuce (Lactuca sativa), encodes an aquaporin with water channel activity. The product belongs to the major intrinsic protein (MIP) family and contains an aquaporin-like domain. The gene is associated with protein heterotetramerization and homotetramerization, and its product localises to the membrane, specifically the plasmalemma, as well as macromolecular complexes. Related genes in other species link the gene family to water transport across cellular membranes, though this specific function is not yet established for lettuce PIP2-2.