- Regulatory Factor X 3 (RFX3)
- Regulatory Factor X 2 (RFX2)
- Regulatory Factor X 1 (RFX1)
- Regulatory Factor X Associated Ankyrin Containing Protein (RFXANK)
- Recombination Activating Gene 2 (RAG2)
- Recombination Activating Gene 1 (RAG1)
- RAB Interacting Factor (RABIF)
- Prolactin Regulatory Element Binding Protein (PREB)
- Protein Regulator Of Cytokinesis 1 (PRC1)
- Pleiotropic Regulator 1 (PLRG1)
- Phytanoyl Coenzyme A-2-Hydroxylase Interacting Protein (PHYHIP)
- Pleckstrin Homology Domain Interacting Protein (PHIP)
- Poly A Binding Protein Interacting Protein 1 (PAIP1)
- Poly A Binding Protein Interacting Protein 2 (PAIP2)
- Nuclear Pore Complex Interacting Protein (NPIP)
