Anti-PRPF4 Antibody Picoband® Fluoro647 Conjugated

U4/U6 small nuclear ribonucleoprotein Prp4 is a protein that in humans is encoded by the PRPF4 gene. he protein encoded by this gene is part of a heteromeric complex that binds U4, U5, and U6 small nuclear RNAs and is involved in pre-mRNA splicing. The encoded protein also is a mitotic checkpoint protein and a regulator of chemoresistance in human ovarian cancer. Several transcript variants encoding different isoforms have been found for this gene.

Transforming growth factor beta activator LRRC32; Garpin; Glycoprotein A repetitions predominant; GARP; Leucine-rich repeat-containing protein 32; LRRC32; D11S833E

Key regulator of transforming growth factor beta (TGFB1, TGFB2 and TGFB3) that controls TGF-beta activation by maintaining it in a latent state during storage in extracellular space. Associates specifically via disulfide bonds with the Latency-associated peptide (LAP), which is the regulatory chain of TGF-beta, and regulates integrin-dependent activation of TGF-beta. Able to outcompete LTBP1 for binding to LAP regulatory chain of TGF-beta. Controls activation of TGF-beta-1 (TGFB1) on the surface of activated regulatory T-cells (Tregs) . Required for epithelial fusion during palate development by regulating activation of TGF-beta-3 (TGFB3) (By similarity) .

1. Chen, X., Liu, Y., Sheng, X., Tam, P. O. S., Zhao, K., Chen, X., Rong, W., Liu, Y., Liu, X., Pan, X., Chen, L. J., Zhao, Q., Vollrath, D., Pang, C. P., Zhao, C. PRPF4 mutations cause autosomal dominant retinitis pigmentosa. Hum. Molec. Genet. 23: 2926-2939, 2014. 2. Gonzalez-Santos, J. M., Wang, A., Jones, J., Ushida, C., Liu, J., Hu, J. Central region of the human splicing factor Hprp3p interacts with Hprp4p. J. Biol. Chem. 277: 23764-23772, 2002. 3. Heng, H. H. Q., Wang, A., Hu, J. Mapping of the human HPRP3 and HPRP4 genes encoding U4/U6-associated splicing factors to chromosomes 1q21.1 and 9q31-q33. Genomics 48: 273-275, 1998.