What is GSTP1 (rs1695) and Why Does the Cellular Zoomer Test for It?

Glutathione S-transferase variant

GSTP1 (rs1695) is a common genetic variant in the gene for glutathione S‑transferase P1, an enzyme that helps attach glutathione to reactive compounds. Knowing which rs1695 version a person carries helps explain inherited differences in cellular detox and antioxidant capacity and adds context to oxidative stress measures in the Cellular Zoomer.

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GSTP1 (rs1695)

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About GSTP1 (rs1695)

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About GSTP1 (rs1695)

Overview and History

GSTP1 belongs to the glutathione S‑transferase (GST) family, a group of phase II detoxification enzymes that catalyze conjugation of glutathione to electrophilic and oxidized molecules. The rs1695 single nucleotide polymorphism changes the amino acid at position 105 (Ile105Val), and this substitution has been studied for its effects on substrate binding and enzyme kinetics. The rs1695 variant was identified through genetic and biochemical research into GST enzyme diversity and population differences. Because GSTP1 activity influences how cells process reactive chemicals and maintain redox balance, the variant has clinical research relevance for interpreting oxidative markers and detoxification capacity alongside other pathways.

Interpreting Highs and Lows

Interpreting rs1695 depends on which allele is present rather than a measured concentration. The Val (105Val) form of rs1695 is often associated with altered or reduced catalytic efficiency for some substrates compared with the Ile form; this pattern may align with higher markers of oxidative damage or slower conjugation of specific toxins. Conversely, genotypes associated with greater GSTP1 activity tend to align with relatively stronger glutathione-conjugation capacity. These associations are context-dependent: genotype effects vary by substrate, other antioxidant genes, and current biochemical measures. For accurate interpretation, rs1695 results should be considered together with the Cellular Zoomer’s oxidative stress, detox intermediate, and nutrient marker panels.

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GSTP1 (rs1695) is included in the Cellular Zoomer to link inherited antioxidant enzyme capacity with urine-based measures of oxidative damage and detox intermediates. By pairing genotype with real-time markers, the report clarifies whether inherited differences in glutathione conjugation may be contributing to observed oxidative or detox patterns, supporting more precise clinical interpretation.

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GSTP1 (rs1695) FAQs

What is GSTP1 (rs1695) and why is it important?

GSTP1 (rs1695) is a single-letter genetic change in the gene for glutathione S‑transferase P1, an enzyme that helps cells neutralize reactive chemicals by attaching glutathione. The specific rs1695 version a person carries can influence enzyme behavior and thus how the body handles oxidative stress and certain chemicals. Understanding this variant helps put oxidative damage and detox markers into genetic context.

What does it mean if my GSTP1 (rs1695) levels are low?

Because rs1695 is a genetic variant rather than a measured concentration, "low" usually refers to an allele associated with reduced enzyme activity (commonly the Val variant). That pattern can be linked with reduced conjugation capacity for some substrates and may co-occur with higher oxidative markers on other parts of the Cellular Zoomer. Interpretation requires the full panel—single-gene results are most informative when seen alongside biochemical measures and other genes.

What does it mean if my GSTP1 (rs1695) levels are high?

If your genotype corresponds to forms of GSTP1 associated with greater catalytic activity, it suggests relatively stronger glutathione-conjugation capacity for substrates affected by this enzyme. That association can help explain lower oxidative damage markers or more efficient processing of certain compounds, but its real-world impact depends on other antioxidant pathways and current biochemical data. Clinical context from the full Cellular Zoomer is needed to interpret significance.

Why is GSTP1 (rs1695) included in the Cellular Zoomer?

GSTP1 (rs1695) links inherited detox enzyme capacity to the Cellular Zoomer’s real-time oxidative stress and detox markers. Measuring this variant helps providers distinguish whether observed biochemical strain aligns with genetic tendencies in glutathione conjugation, improving pattern recognition and supporting more individualized interpretation of the panel.

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