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RanBP2-like and GRIP domain-containing protein 4 (RGPD4)
- Target
- RGPD4
- Molecular classification
- Other (nuclear pore-associated protein, large low complexity and GRIP-domain containing protein)
01
Overview
RanBP2-like and GRIP domain-containing protein 4 (RGPD4) is a large, low-complexity protein that is part of a family derived from segmental duplication events involving RANBP2 and GRIP-domain proteins[1][4]. The protein is predicted to participate in GTPase activation and nuclear protein import, indicating a putative role in nuclear transport—a function inferred from its domain architecture and homology to RANBP2[4]. RGPD4 is **not considered a validated therapeutic target** (such as a receptor, enzyme, or transporter), nor is it linked directly to any approved drugs or clinical biomarker strategies at this time. While associated on a genetic basis with osteogenesis imperfecta, its mechanistic role in disease remains undefined, and there are no known drugs targeting RGPD4[4]. Given its relationship to nuclear transport pathways, alterations may contribute to yet-uncharacterized cellular processes, but the literature does not support a direct role as a drug target or major disease effector protein.
- Other names
- RANBP2 like and GRIP domain containing 4RGPD4RGP4DKFZp686P0288ranBP2-like and GRIP domain-containing protein 4
02
Biological functions
GTPase activator activity (predicted)NLS-bearing (nuclear localization signal) protein import into the nucleus (predicted)[4]Likely involvement in nuclear transport processes, based on homology to RANBP2 family[1][4]
03
Disease associations
Osteogenesis imperfecta, type XII (gene-disease association, not established as direct effector)[4]No direct role as an established disease driver or therapeutic target
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