ERP1 Antibody

ERP1 Protein Overview

Yeast ERP1:

• A member of the p24 protein family involved in endoplasmic reticulum (ER)-to-Golgi vesicle trafficking .

• Forms complexes with Emp24p and Erv25p to regulate cargo protein transport .

• Deletion destabilizes Emp24p/Erv25p and impairs Gas1p secretion .

Human ZNF471/ERP1:

• Zinc finger protein implicated in transcriptional regulation and tumor suppression .

• Suppresses breast cancer growth by inhibiting AKT and Wnt/β-catenin pathways .

Yeast ERP1 Antibodies

Human ZNF471/ERP1 Antibody (ab204974)

Yeast ERP1 Functional Insights

• Protein Stability: ERP1 deletion reduces Emp24p and Erv25p levels by >90%, indicating interdependent stability .

• Complex Formation: Co-immunoprecipitates with Emp24p, Erv25p, and Erp2p, suggesting a heteromeric complex critical for ER export .

• Phenotypic Impact: ERP1 deletion delays Gas1p maturation and induces ER stress markers like Kar2p .

Human ZNF471/ERP1 in Oncology

• Tumor Suppression: Downregulates AKT and Wnt signaling, reducing breast cancer metastasis .

• Diagnostic Potential: Overexpression correlates with improved survival in bladder cancer cohorts .

Comparative Analysis of ERP1 Antibodies

Challenges and Best Practices

• Cross-Reactivity: Yeast ERP1 antibodies show partial cross-reactivity with Erp5/6p due to sequence homology, necessitating rigorous controls .

• Validation Standards: Initiatives like YCharOS emphasize knockout-validated antibodies to minimize off-target effects .