Target intelligence / Profile preview

Pre-mRNA-splicing factor 38B (PRPF38B)

Target
PRPF38B
Molecular classification
Other (splicing factor), RNA-binding protein
01

Overview

Pre-mRNA-splicing factor 38B (PRPF38B) is a protein-coding gene located on chromosome 1 that encodes an RNA-binding protein involved in the essential process of pre-mRNA splicing as part of the spliceosome complex, specifically the U4/U6.U5 tri-small nuclear ribonucleoprotein (snRNP) particle. It is primarily localized in the cell nucleus and participates in the maturation of pre-mRNAs, thereby controlling gene expression at the RNA processing level. Changes in PRPF38B expression and subcellular localization have been observed in cancer, particularly breast cancer, where it may be a prognostic biomarker, but there is no evidence it directly serves as a therapeutic drug target at this time.

Other names
NET1FLJ10330Sarcoma antigen NY-SAR-27PRP38 pre-mRNA processing factor 38 domain containing B
02

Biological functions

mRNA splicingRNA bindingpre-mRNA processing via the spliceosome
03

Disease associations

Cancer (including breast cancer, pancreatic ductal adenocarcinoma, sarcoma)Dilated cardiomyopathyType 1 diabetes mellitusUlceroglandular tularemia
04

Biomarkers

PRPF38B expression and localization (nuclear versus membranous) serve as candidate prognostic and predictive biomarkers in breast cancer, particularly in HER2-positive and ER-negative tumors

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