Chemicals and Drugs

PTB-Associated Splicing Factor

An RNA splicing factor that also binds DNA. It is essential for pre-mRNA spicing in the formation of early SPLICEOSOMES and catalytic step II. It binds specifically to polypyrimidine tracts in INTRONS and is involved in the regulation of ALTERNATIVE SPLICING by SIGNAL TRANSDUCTION PATHWAYS.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

An RNA splicing factor that also binds DNA. It is essential for pre-mRNA spicing in the formation of early SPLICEOSOMES and catalytic step II. It binds specifically to polypyrimidine tracts in INTRONS and is involved in the regulation of ALTERNATIVE SPLICING by SIGNAL TRANSDUCTION PATHWAYS.

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Synonyms

9 entry terms
  • PSF Splicing Factor
  • Polypyrimidine Tract-Binding Protein-Associated Splicing Factor
  • SFPQ Protein
  • Splicing Factor Proline-Glutamine Rich Protein
  • PTB Associated Splicing Factor
  • Polypyrimidine Tract Binding Protein Associated Splicing Factor
  • Splicing Factor Proline Glutamine Rich Protein
  • Splicing Factor, PSF
  • Splicing Factor, PTB-Associated

MeSH Record

Aspects Covered

30 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, antagonists & inhibitors, biosynthesis, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, deficiency, drug effects, economics, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, ultrastructure, urine.

MeSH Record

History Note

2017 (1993)

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AMA Style

References

  1. National Library of Medicine. PTB-Associated Splicing Factor. Medical Subject Headings (MeSH). 2026. Unique ID D000072670. http://id.nlm.nih.gov/mesh/2026/D000072670
  2. PTB-Associated Splicing Factor. In: Wikidata. https://www.wikidata.org/wiki/Q21114335