The PLAC8 protein contains five exons, coding for an mRNA species of 829 base pairs and an open reading frame of 115 amino acids . This protein shows a high degree of conservation (83%) between humans and mice . PLAC8 is expressed at high levels in various tissues, including plasmacytoid dendritic cells, spleen, lymph nodes, peripheral blood leukocytes, and bone marrow .
PLAC8 plays multifaceted roles in both normal physiological processes and pathological conditions:
Pregnancy and Placental Development: PLAC8 expression is dynamic during pregnancy and placental development, accumulating in an implantation-dependent manner . It is highly expressed in the endometrium of pregnant cows compared to nonpregnant cows and is upregulated in blastocysts, contributing to calf delivery .
Embryo Development: PLAC8 is involved in the differentiation process of cytotrophoblast cells into interstitial extravillous trophoblast cells . It has been found to be involved in organ development and is a molecular marker to predict prognosis and distinguish between different cell subpopulations .
Cancer: The role of PLAC8 in tumorigenesis has been gradually elucidated. It impacts tumorigenesis in varied ways, sometimes having opposite effects on cancer progression . PLAC8’s molecular functions in cancer include enforcing cell growth and influencing different stages of cancer progression . Understanding these roles can lead to the development of novel anticancer therapies .
Recombinant human PLAC8 protein, fused to a His-tag at the N-terminus, is expressed in E. coli . This recombinant protein is used for research purposes and is not approved for clinical use in humans . It is typically used in Western Blot (WB) or imaging assays .
Storage and Handling: The recombinant human PLAC8 protein should be stored at 4°C for short-term use and at -20°C for long-term storage. It is important to avoid freeze-thaw cycles to maintain its stability .