Data mining of a whole genome RNA expression library (GSE10518) from ES cells at day 0 and day 4 of EB formation for GPCRs^*.

*Day 0 represents undifferentiated ES cells prior to EB formation and Day 4 represents EBs analyzed at day 4 of EB formation. This database was mined for the GPCRs included in the real time RT-PCR array (see Text S2). Receptors were identified as expressed at day 0 alone, day 0 and day 4 both or day 4 alone. In parenthesis, next to each gene name is the corresponding expression level determined by the GPCR specific real time RT-PCR microarray for undifferentiated ES cells and day 4 and day 20 EBs (h = high, m = medium, l = low, and u = undetectable).