The LRRC59 gene is located on chromosome 17 and encodes a protein that is approximately 30.3 kDa in size . The protein consists of 267 amino acids, with a 23 amino acid His-tag at the N-terminus, which is used for purification purposes . The LRRC59 protein is a type II transmembrane protein, meaning it spans the membrane with its N-terminus inside the cell and its C-terminus outside .
LRRC59 is involved in several cellular processes, including the regulation of nuclear import of fibroblast growth factor 1 (FGF1). It facilitates the interaction of FGF1 with the nuclear import machinery, aiding in its transport through nuclear pores . Additionally, LRRC59 has been predicted to play a role in positive regulation of Ras protein signal transduction and general signal transduction processes .
The protein is primarily localized in the endoplasmic reticulum and mitochondrial nucleoid . It exhibits cytoplasmic expression of varying intensity across most tissues .