Fig. 5.

AMPA receptor subunit expression patterns in motoneurons and dorsal horn neurons. A, Fractional AMPA receptor subunit expression pattern in four motoneurons (left) and four dorsal horn neurons (right). PCR products from single cells were digested with a mix of four subunit-specific enzymes and separated on 5% polyacrylamide gels. B, Histograms summarizing distributions of fractional GluR2 expression (expressed as percentage of total AMPA receptor subunit mRNA) in motoneurons (left; n = 10) and dorsal horn neurons (right; n = 11).C, Summary of fractional subunit expression in motoneurons (left; n = 10) and dorsal horn neurons (right; n = 11).