Fig. 1
From: N-methyl-D-aspartate (NMDA) receptor expression and function is required for early chondrogenesis
NMDAR subunit expression profile of chondrifying chicken micromass cultures during the entire culturing period (days 0–6). mRNA expression profiles of GRIN1, GRIN2A, GRIN2B, GRIN3A, GRIN3B and GRIN3C (n = 3 for each culturing day). Assays for GRIN2C and GRIN2D have also been performed but no bands at the expected size were detected (see Additional file 1: Fig. S2 in the Online Resource)