rs2271875 and LOC105374305: Understanding Height Associations
The genetic variant rs2271875 is a single nucleotide polymorphism (SNP) located within the LOC105374305 region. It has been identified in large-scale genomic studies as being associated with variations in adult human height and skeletal growth.
What each genotype means
Common height-associated genotype
This genotype is one of the common variations identified in large-scale studies of human height. Research indicates that this variant is part of a complex polygenic architecture, meaning it contributes only a very small amount to overall stature alongside thousands of other genetic factors.
This genotype is common globally, reflecting the high frequency of the C allele in most human populations.
Common height-associated genotype
Carrying one copy of each allele is a common finding in studies examining the genetic basis of adult height. Because height is a complex trait influenced by many genes and environmental factors, this specific genotype does not determine stature on its own and should be viewed as a minor contributor to polygenic variation.
This heterozygous genotype is frequently observed in diverse populations, consistent with the variant's common status.
Common height-associated genotype
This genotype represents the alternative homozygous state for this variant, which has been associated with variations in skeletal growth in large cohort studies. As with other common variants linked to height, the individual effect size is very small, and it does not serve as a diagnostic indicator for any specific growth condition.
This genotype is found at varying frequencies globally, consistent with the reported minor allele frequency range of 0.30 to 0.48.
What is rs2271875?
A single nucleotide polymorphism, or SNP, is the most common type of genetic variation among people. Each SNP represents a difference in a single DNA building block, called a nucleotide. The variant rs2271875 is a specific location in the human genome where individuals may carry different nucleotides. This variant is situated within the genomic region identified as LOC105374305. In the context of human genetics, SNPs like rs2271875 are often studied to understand how small, inherited differences in our DNA sequence contribute to observable physical traits. Because this variant is common, it is frequently included in genome-wide association studies (GWAS), which scan the genomes of large numbers of people to find statistical links between specific genetic markers and complex traits like height.
The Role of LOC105374305
The variant rs2271875 is associated with the LOC105374305 locus. In genomics, a locus is a specific, fixed position on a chromosome. While some loci contain well-characterized genes that produce proteins, others, like this one, may be classified as non-coding or predicted regions. Research into skeletal development often focuses on identifying which genes are expressed in bone and cartilage tissues. While the specific biological function of the sequence at LOC105374305 is still being investigated, its association with height suggests it may play a role in the complex regulatory networks that govern human growth. Scientists use functional genomics to determine if such regions act as switches that turn other genes on or off during development, thereby influencing the final stature of an individual.
Research and Evidence Strength
The association between rs2271875 and human height is derived from large-scale cohort studies. Genome-wide association studies have identified thousands of variants that collectively influence height, a trait known to be highly polygenic, meaning it is influenced by many different genes and environmental factors. The evidence for rs2271875 is currently categorized as limited. This does not mean the association is incorrect, but rather that the effect size of this specific variant is likely very small, and it may only account for a tiny fraction of the total variation in height observed across a population. Because height is influenced by thousands of variants, the contribution of any single SNP is typically modest. Further research is required to confirm the biological mechanism by which this variant might influence skeletal growth.
What You Can Do With This Information
It is important to understand that genetic information regarding common traits like height is primarily for educational and research purposes. You cannot use the presence of a specific genotype at rs2271875 to predict your exact height or to diagnose any medical condition. Height is a complex trait shaped by a combination of genetics, nutrition, overall health, and environmental factors during childhood and adolescence. If you have questions about your growth, development, or skeletal health, the most appropriate course of action is to consult with a qualified healthcare professional, such as a pediatrician or an endocrinologist. They can provide clinical assessments based on your personal health history and physical examinations, which are far more informative than any single genetic marker.
How common is this variant?
The variant rs2271875 is considered a common allele globally, with a minor allele frequency (MAF) typically observed between 0.30 and 0.48 across various ancestral groups.
Frequently asked questions
Can I use rs2271875 to predict how tall I will be?
No, you cannot use this variant to predict your height. Height is a complex trait influenced by thousands of genetic variants and environmental factors, and this SNP only has a very small, statistical association.
Is rs2271875 a disease-causing mutation?
No, rs2271875 is a common genetic variant associated with normal variation in human height. It is not classified as a disease-causing mutation.
Why is the evidence for this variant called 'limited'?
The term 'limited' indicates that while statistical associations have been found in large studies, the biological impact of this specific variant is small and requires more research to fully understand its role in skeletal growth.
Where can I find more information about height genetics?
You can explore resources like the GWAS Catalog or MedlinePlus Genetics for broad information on how genetics contributes to human traits like height.
Sources & further reading
Educational information only, last refreshed 10/15/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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