Splicing Regulatory Glutamine/Lysine Rich Protein 1 (SREK1)

Anovel human serine-arginine-rich (SR) splicing regulatory protein 508 (SRrp508) gene that is related to other members of the growing SR superfamily, but only homologous to rat (Rattus norvegicus) serine-arginine-rich splicing regulatory protein 86 (SRrp86) gene. The full-length cDNA of 3811 bp for human SRrp508 was cloned through a blast search of public databases following the identification of a cDNA contig of 658 bp obtained by EST assembly with full robotization in supercomputer in large-scale. Structurally, human SRrp508 encodes a polypeptide of 508 amino acids, which contains a single amino-terminal RNA recognition motif (RRM) and two carboxy-terminal domains rich in serine-arginine dipeptides that are highly conserved among other members of the SR superfamily.