Ambiguity about Splicing Factor 3b Subunit 3 (SF3B3) and Sin3A Associated Protein 130 (SAP130)

Area of Science:

• Immunology
• Molecular Biology
• Proteomics

Background:

• Recent publications incorrectly identified a Mincle-binding protein as SAP130, a histone deacetylase complex subunit.
• The actual protein investigated for immune activation was splicing factor 3b subunit 3 (SF3B3), distinct from SAP130.

Purpose of the Study:

• To resolve the persistent confusion in scientific literature regarding two distinct proteins: SF3B3 and SAP130.
• To correct the misattribution of research findings between SF3B3 and SAP130.

Main Methods:

• Tracing the origin of the protein name ambiguity through scientific databases and commercial product information.
• Comparative analysis of protein functions and research methodologies used in the cited articles.

Main Results:

• The confusion originated from an OMIM entry referencing a SF3B3 publication under the SAP130 entry, leading to widespread misidentification.
• Commercial entities perpetuated the error by listing products for both SF3B3 and SAP130 based on the inaccurate reference.
• Research conclusions were drawn for SF3B3 using experimental tools (qPCR primers, antibodies) targeting SAP130.

Conclusions:

• The misnaming of SF3B3 as SAP130 has led to significant confusion in Mincle-binding protein research.
• This report establishes clear distinctions between SF3B3 and SAP130, aiming to correct the scientific record.
• Accurate protein identification is crucial for the validity of immunological and molecular biology research findings.