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Target intelligence / Profile preview
Apolipoprotein B mRNA editing enzyme catalytic polypeptide-like 4 (APOBEC4)
- Target
- APOBEC4
- Molecular classification
- Enzyme, (Putative) cytidine deaminase, AID/APOBEC family
01
Overview
Apolipoprotein B mRNA editing enzyme catalytic polypeptide-like 4 (APOBEC4) is a protein encoded by the APOBEC4 gene in humans and belongs to the AID/APOBEC family of polynucleotide (deoxy)cytidine deaminases[1][2][3][4]. Unlike other family members with confirmed C-to-U deamination and roles in mRNA editing or antiviral immunity, APOBEC4 lacks detectable cytidine deaminase activity in vitro and shows only weak single-stranded DNA binding[2]. APOBEC4 is primarily expressed in the testis and hypothesized to be involved in transcriptional regulation rather than classical RNA/DNA editing[2][3][4]. There is evidence that APOBEC4 can enhance the replication of HIV-1 by promoting viral promoter activity, but its physiological targets and disease links remain unclear[1][2]. No approved drugs or clinical biomarkers are currently associated with APOBEC4, and it is not considered an established therapeutic target.
- Other names
- APOBEC4C1orf169Putative C->U-editing enzyme APOBEC-4Apolipoprotein B mRNA-editing enzyme catalytic polypeptide-like 4MGC26594FLJ25691RP1-127C7.4
02
Biological functions
Likely involved in gene expression regulationProposed (not confirmed) role in mRNA editingMay modulate promoter activity and transcription
03
Disease associations
Other (possible association with spermatogenesis; limited evidence in disease)
04
Safety considerations
Uncharacterized; function in humans not well establishedLack of demonstrated cytidine deaminase activity in vitro
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