We isolated and determined a nucleotide sequence of a cDNA clone encoding a
protein homologous to maize major auxin-binding protein (ABP1) from a cDNA
library of oat coleoptiles. The deduced amino acid sequence of this clone
contained an N-linked glycosylation signal and an ER-retention signal. Furt
hermore, two domains that were important to interact with auxins, were cons
erved in this clone at amino acid level.