Gla-Rich Protein Is a Potential New Vitamin K Target in Cancer: Evidences for a Direct GRP-Mineral Interaction
Figure 2
GRP-F1 is the predominant splice variant expressed in healthy human skin and mammary gland. (a) Schematic representation of GRP-F1, -F5, and -F6 splice transcripts and strategy to obtain corresponding transcript-specific primer sets. Structural organization of full length GRP-F1 is represented in white boxes above corresponding coding exons and limited to the open reading frame (between ATG and Stop codons): SP, signal peptide; PP, propeptide; MP, mature protein. (b) Gene expression analysis of GRP-F1, -F5, and -F6 splice transcripts in three control samples of both skin (Sk 1–3) and mammary gland (MG 1–3) tissues, using the above-described primer sets. 18S was used as loading control for sample integrity; transcript sizes are 118, 172, and 102 bp for F1, F5, and F6, respectively.
