prp-19 Antibody

Overview of PRP19 Antibody

PRP19 (Pre-mRNA Processing Factor 19) antibodies are immunological tools designed to detect and study the PRPF19 protein, a conserved E3 ubiquitin ligase with multifaceted roles in mRNA splicing, DNA damage repair, and cancer progression . These antibodies enable researchers to investigate PRP19's expression patterns, molecular interactions, and clinical relevance across diverse biological contexts.

Research Applications of PRP19 Antibodies

PRP19 antibodies are validated for multiple techniques:

These antibodies detect PRP19 at ~55 kDa in tissues such as human cervical cancer and hepatocellular carcinoma .

Association with Cancer Outcomes

PRP19 overexpression correlates with poor prognosis in multiple cancers:

In neuroblastoma, PRP19 knockdown reduces cell migration/invasion by modulating EMT markers (e.g., E-cadherin, MMP9) and YAP splicing .

Regulation of YAP Splicing

PRP19 promotes YAP mRNA maturation by resolving intron retention (Figure 7B-C ), enhancing Hippo pathway activity to drive tumor metastasis .

DNA Damage Response

PRP19 facilitates 'Lys-63' ubiquitination of RPA complexes, recruiting ATR-ATRIP to stabilize stalled replication forks . This role is critical in resolving R-loops and preventing genomic instability .

Future Directions

PRP19 antibodies remain pivotal for exploring:

• Therapeutic targeting in PRP19-high cancers.

• Cross-talk between spliceosome activity and DNA repair.

• Role in immune infiltration (e.g., BLCA tumor microenvironment ).