Last reviewed: May 12, 2026 Last updated: May 12, 2026

Written by: Jay Hastings , CEO of PlexusDx

Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations. He has more than 20 years of experience across healthcare innovation, genomics, laboratory operations, healthcare investing, and strategic finance. His work has included scaling healthcare startups, leading CLIA lab integrations, and helping expand consumer access to precision health tools.

Medically reviewed by: Jayden Lee, PharmD, EMBA

Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development, with a proven ability to bridge the gap between genomic research and practical patient outcomes. Dr. Lee has more than 10 years of professional experience in clinical pharmacy, academia, and research.

PlexusDx serves as the foremost company delivering personalized health reports

which provide important information about genetic factors that influence different health and wellness aspects. This discussion explores how the MTR gene influences methylation processes, homocysteine regulation functions, and contributes to general health status. The MTR gene plays an essential role in the methylation cycle by producing methionine synthase, the enzyme that transforms homocysteine into methionine. The enzymatic activity maintains the body's proper methylation balance which serves as a critical health mechanism with extensive physiological impacts. Different compounds exchange methyl groups through methylation which controls gene expression and maintains hormone balance as well as metabolic pathways essential for health. The rs1805087 variant (A2756G) in the MTR gene demonstrates correlations with varied health conditions. The presence of the "G" allele in this genetic variant results in enhanced MTR activity which produces reduced homocysteine levels. Research shows that this allele leads to conditions like fertility issues and autism and contributes to depression and cognitive problems. The complex relationships among genetic variations and health outcomes reveal the multifaceted nature of genetic predispositions in individuals. The rs1805087 variant displays inconsistent associations with health outcomes even though increased MTR activity might offer benefits. Research concerning the connection between this particular variant and diseases such as cancer neural tube defects as well as congenital heart disease has produced inconsistent conclusions. The processes governing these genetic associations continue to be researched as scientists investigate the complex interactions between genetic factors and health outcomes. Insights into how genetic traits such as the MTR gene variant affect methylation and homocysteine regulation help individuals make better health choices. Customers can access PlexusDx Precision Health & Wellness tests through their website PlexusDx.com or major retailers such as Amazon and Walmart to uncover genetic predispositions and actively improve their health. The MTR gene functions as an essential component in the methylation process which impacts multiple areas of health and wellness. Genetic testing services such as PlexusDx empower individuals to gain comprehensive insights into their genetic structure and how it affects their health status. Explore Precision Health & Wellness tests via PlexusDx to start your personalized health optimization journey and take control of your well-being today.

Medical and Editorial Standards

Medical review process: This article was reviewed for medical accuracy, scientific clarity, evidence alignment, and appropriate discussion of genetics, medications, supplements, biomarkers, and health-related claims.

Sources and evidence: PlexusDx educational content is developed using peer-reviewed research, clinical literature, reputable medical references, and, where applicable, public health or regulatory guidance. References are included at the end of the article when scientific, medical, or health-related claims are discussed.

Commercial transparency: PlexusDx offers genetic testing, blood biomarker testing, personalized supplement recommendations, and related precision wellness services. Product mentions are intended to help readers understand available options and should not be interpreted as medical advice.

Important disclaimer: PlexusDx educational content is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about medications, supplements, genetic testing, lab testing, or health-related care.

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