rs1214208 (LINC02411): A Bone Density lncRNA Variant

Key takeaways

• rs1214208 sits in two non-coding RNA genes, LINC02411 and LINC00508, that may regulate nearby gene activity rather than encoding proteins
• This variant appears in the context of a bone mineral density study of adults with unusually high or low bone mass
• The alternate allele is linked to reduced expression of a nearby gene in sun-exposed skin and testis tissue based on reference data from 953 individuals
• No confirmed effect size for this variant's direct impact on bone density appears in the available research excerpt
• Research into non-coding RNA variants near bone biology pathways is at an early and exploratory stage

What the research says A genome-wide association study (GWAS, a scan of large populations for statistical links between genetic variants and traits) enrolled adults with extreme high or low bone mineral density (BMD), including 240 individuals with unexplained high BMD (Z-score >= +3.2, where a Z-score measures how far a value sits from the population average), 1,055 high-BMD females, and 900 low-BMD females from the Anglo-Australasian Osteoporosis Genetics Consortium (AOGC). The study tested more than 6.3 million variants for links to lumbar spine and total hip BMD and found significant enrichment for known BMD loci, supporting a polygenic (many-gene) contribution to extreme bone mass. Expression QTL (eQTL) data - linking genetic variants to changes in nearby gene activity - from GTEx (953 donors, false discovery rate (FDR) < 0.05) show that the alternate allele of rs1214208 is associated with reduced expression of ENSG00000286662 in two tissues GTEx Portal.

Reported associations

• Bone mineral density context: rs1214208 falls within a locus studied in a GWAS of extreme high and low BMD (combined cohorts of approximately 2,195 participants, with replication in n=32,965 for select loci); the available excerpt does not report a specific effect size or p-value for this particular variant
• Gene expression in skin (sun-exposed, lower leg): The alternate allele is associated with reduced expression of ENSG00000286662, slope -0.55 (a moderate-to-large reduction in expression), p=1.6e-16 GTEx Portal
• Gene expression in testis: The alternate allele is also associated with reduced expression of the same gene in testis tissue, slope -0.52, p=3.9e-7 GTEx Portal

Evidence quality The GWAS enrolled 240 extreme high-BMD adults (Z-score >= +3.2), 1,055 high-BMD females from AOGC, and 900 low-BMD females from AOGC. The study identified novel genome-wide significant signals at NPR3 and SPON1 and found enrichment for known BMD loci, but does not report a p-value or effect size specific to rs1214208 in the provided text. The GTEx eQTL associations (953 donors, FDR < 0.05) are statistically robust, though they describe gene regulation rather than clinical outcomes. No independent replication of a BMD effect at this locus is reported in the available materials, and overall the evidence for this variant's role in any trait remains preliminary.

Tissue-specific expression effects

• ENSG00000286662: The alternate allele of rs1214208 is associated with reduced expression of this gene in sun-exposed lower-leg skin (slope -0.55, p=1.6e-16) and in testis (slope -0.52, p=3.9e-7); the biological consequence of this reduced expression for bone biology or other traits is not established in the provided data GTEx Portal

Lifestyle considerations No lifestyle considerations on file for this variant.