Drosophila dSAP18 is a nuclear protein that associates with chromosomes and the nuclear matrix, and interacts with pinin, a protein factor involved in RNA splicing.
Costa E, Canudas S, Garcia-Bassets I, Pérez S, Fernández I, Giralt E, Azorín F, Espinás ML. Chromosome Res. 2006; 14(5):515-26. Epub 2006 Jul 12.