rs12410884 (ACTL8): Liver Protein Expression pQTL
Key takeaways
- rs12410884 was linked to ACTL8 protein expression in a pQTL study of 287 human liver samples.
- pQTL variants capture genetic effects on protein levels that standard mRNA studies can miss.
- Over 2,000 variants in this pQTL study were not seen in previous mRNA-level studies, showing how common post-transcriptional regulation is.
- Evidence comes from a single study and independent replication has not been reported.
Key takeaways
- rs12410884 was identified in a genome-wide protein quantitative trait locus (pQTL) study of 287 normal human liver samples as associated with ACTL8 (Actin-Like 8) protein expression.
- pQTL variants capture post-transcriptional regulation of gene expression, offering a view of genetic influence on protein abundance that mRNA-level studies miss.
- The underlying study found that over 2,000 pQTL variants in human liver had not been previously reported in mRNA-level expression studies, underscoring widespread post-transcriptional genetic effects.
- Evidence comes from a single study and independent replication is not described in the available text, so findings should be considered preliminary.
What the research says A genome-wide pQTL study in 287 normal human liver samples used data-independent acquisition-based absolute protein quantification (DIA-TPA) and LC-MS/MS proteomics to identify genetic variants associated with protein abundance. Across 1,508 quantified proteins, the study identified 900 local (cis) pQTL variants and 4,026 distant (trans) pQTL variants, with rs12410884 catalogued in relation to ACTL8 protein levels in liver tissue. The available study text does not provide a variant-specific effect size or p-value for this locus.
Reported associations
- ACTL8 protein expression in liver: rs12410884 is associated with regulation of ACTL8 (Actin-Like 8) protein abundance in normal human liver tissue, identified in a pQTL analysis of 287 liver samples.
Evidence quality The association is drawn from a single genome-wide pQTL study (n=287 normal human liver samples) using a label-free absolute protein quantification approach. Across the full study, 900 local and 4,026 distant pQTL variants were identified spanning 1,508 quantified proteins. No variant-specific p-value or effect size for rs12410884 is present in the available study text, and no independent replication of the ACTL8 pQTL association is described. The authors noted that over 2,000 of the identified pQTL variants had not appeared in prior mRNA-level eQTL studies, suggesting many findings, potentially including this one, are novel and await validation in larger or independent cohorts. Evidence for this specific variant should be considered preliminary.
Lifestyle considerations No lifestyle considerations on file for this variant.
Frequently asked questions
What does rs12410884 do?
rs12410884 is a genetic variant associated with the level of ACTL8 protein in human liver tissue, identified in a genome-wide protein quantitative trait locus (pQTL) study. pQTL studies measure how genetic variants influence protein abundance rather than just gene activity at the mRNA level.
What is ACTL8?
ACTL8 stands for Actin-Like 8. It is a protein encoded by the ACTL8 gene. The available study does not describe the specific function of ACTL8 in liver tissue.
What is a pQTL and how is it different from an eQTL?
A protein quantitative trait locus (pQTL) is a genomic region where genetic variation is statistically associated with differences in protein abundance. An expression quantitative trait locus (eQTL) links variants to mRNA levels. Because mRNA and protein levels often do not correlate well, pQTL studies can reveal regulatory mechanisms that mRNA studies miss.
How reliable is the evidence linking rs12410884 to ACTL8?
The evidence comes from a single pQTL study of 287 human liver samples. No independent replication of the rs12410884-ACTL8 association is described in the available text, and no variant-specific effect size or p-value is reported for this locus. The finding should be considered preliminary.
Is rs12410884 linked to any disease?
The available study does not report a direct link between rs12410884 and any specific disease. The study explored connections between pQTL variants and liver conditions such as alcohol dependence at a broad level, but no disease association specific to this variant is described in the available text.