 Uncharacterized protein is composed of 7.5% Aspartate and 14.0% Serine, which constitutes it as a Serine-rich protein.This protein also consists of 0.7% Tyrosine, which is considered to be below average in human proteins.Transcription of KIAA1107 produces 6 different mRNAs, with 4 alternatively spliced variants and 2 unspliced forms.