Complex sentence: Final in the sequence is the 54 amino acid cytoplasmic domain, which contains the NPxY motif with the sequence Asparagine-Proline-any amino acid-Tyrosine that works in signal transduction and the targeting of receptors to coated pits.
Split into simpler sentences: Final in the sequence is the 54 amino acid cytoplasmic domain, which contains the NPxY motif with the sequence Asparagine-Proline-X-Tyrosine, where X can be any amino acid. The motif works in signal transduction and the targeting of receptors to coated pits.