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Primary topic: KCNJ11 insulin secretion gene

KCNJ11 Gene and Metabolism: What It Means for Your Body

KCNJ11 is relevant when the gating of insulin release may be part of the glucose-regulation picture.

What is the KCNJ11 gene?

KCNJ11 contributes to the potassium channel that helps regulate insulin secretion from beta cells. That makes it a practical secretion-side gene rather than only a generic diabetes label.

How KCNJ11 affects metabolism

If KCNJ11-related signaling is less favorable, glucose handling can be less stable because the release side of insulin support may not respond as smoothly.

What happens when KCNJ11 is altered

Altered KCNJ11 function does not diagnose diabetes, but it increases the value of checking glucose markers directly.

Curated SNP evidence for KCNJ11

These SNPs come from the approved study-level evidence model. Each claim is scored from curated study rows, then gated before it can influence pathway scoring.

Glucose

Evidence-backed report connection

KCNJ11 currently has 2 curated SNPs, 6 claim-level scores, and 1 claims eligible for pathway scoring.

Open the sample report
rs5215KCNJ11 supporting signal3 claims · 6 study rows

unknown · CC

KCNJ11 unscored target

Not used for pathway scoring

rs5215 CC has no scored directional claim for KCNJ11 unscored target.

KCNJ11 rs5215 is kept neutral because the available SNP-level evidence does not support a reliable simplified end-user effect direction.

Likely effectNo clear DNA signal
Signal sizeMinimal signal
Evidence supportVery limited support
Report useEvidence only, not scored
Show study evidence
NCBI RefSNP recordidentity only · unknownNCBI RefSNP data place rs5215 in KCNJ11 and report C and T alleles for this variant. This supports the CC, CT, and TT genotype letters used in the simplified record.PMC6118367biomarker association · loose proxyChatterjee et al. analyzed rs5215 and rs5219 in a combined ARIC and Jackson Heart Study cohort. The study treated C as the rs5215 diabetes-risk allele, but rs5215 was not a significant predictor of incident diabetes and did not modify the serum-potassium association. This supports a neutral simplified SNP-level effect.

unknown · CT

KCNJ11 unscored target

Not used for pathway scoring

rs5215 CT has no scored directional claim for KCNJ11 unscored target.

KCNJ11 rs5215 is kept neutral because the available SNP-level evidence does not support a reliable simplified end-user effect direction.

Likely effectNo clear DNA signal
Signal sizeMinimal signal
Evidence supportVery limited support
Report useEvidence only, not scored
Show study evidence
NCBI RefSNP recordidentity only · unknownNCBI RefSNP data place rs5215 in KCNJ11 and report C and T alleles for this variant. This supports the CC, CT, and TT genotype letters used in the simplified record.PMC6118367biomarker association · loose proxyChatterjee et al. analyzed rs5215 and rs5219 in a combined ARIC and Jackson Heart Study cohort. The study treated C as the rs5215 diabetes-risk allele, but rs5215 was not a significant predictor of incident diabetes and did not modify the serum-potassium association. This supports a neutral simplified SNP-level effect.

unknown · TT

KCNJ11 unscored target

Not used for pathway scoring

rs5215 TT has no scored directional claim for KCNJ11 unscored target.

KCNJ11 rs5215 is kept neutral because the available SNP-level evidence does not support a reliable simplified end-user effect direction.

Likely effectNo clear DNA signal
Signal sizeMinimal signal
Evidence supportVery limited support
Report useEvidence only, not scored
Show study evidence
NCBI RefSNP recordidentity only · unknownNCBI RefSNP data place rs5215 in KCNJ11 and report C and T alleles for this variant. This supports the CC, CT, and TT genotype letters used in the simplified record.PMC6118367biomarker association · loose proxyChatterjee et al. analyzed rs5215 and rs5219 in a combined ARIC and Jackson Heart Study cohort. The study treated C as the rs5215 diabetes-risk allele, but rs5215 was not a significant predictor of incident diabetes and did not modify the serum-potassium association. This supports a neutral simplified SNP-level effect.
rs5219E23K3 claims · 9 study rows

transport activity · TT

KCNJ11 transport activity

Moderate

rs5219 TT is associated with increased KCNJ11 transport activity.

KCNJ11 rs5219 is scored as a cautious tendency toward higher K(ATP) channel activity for T-containing genotypes, strongest for TT.

Likely effectHigher transport signal
Signal sizeModerate signal
Evidence supportLimited support
Report useIncluded in pathway scoring
Show study evidence
NCBI RefSNP recordidentity only · unknownNCBI RefSNP data place rs5219 in KCNJ11, which encodes potassium inwardly rectifying channel subfamily J member 11. This simplified record scores the common C and T genotype set used in the cited KCNJ11 E23K literature.PMC2712777functional assay · directVillareal et al. studied the Kir6.2 E23K variant and reported that the variant increased K(ATP) channel activity, reduced ATP inhibition, increased open probability, and was associated with lower insulin secretory responses in glucose-tolerant adults. This supports a positive transport-activity tendency for T-containing genotypes, with stronger scoring for TT than CT.PMC6118367biomarker association · loose proxyChatterjee et al. treated T as the rs5219 diabetes-risk allele, but rs5219 was not a significant independent predictor of incident diabetes and did not modify the serum-potassium association. This is loose null context, not directional transport-activity evidence.

transport activity · CT

KCNJ11 transport activity

Not used for pathway scoring

rs5219 CT is associated with increased KCNJ11 transport activity.

KCNJ11 rs5219 is scored as a cautious tendency toward higher K(ATP) channel activity for T-containing genotypes, strongest for TT.

Likely effectHigher transport signal
Signal sizeSmall signal
Evidence supportLimited support
Report useEvidence only, not scored
Show study evidence
NCBI RefSNP recordidentity only · unknownNCBI RefSNP data place rs5219 in KCNJ11, which encodes potassium inwardly rectifying channel subfamily J member 11. This simplified record scores the common C and T genotype set used in the cited KCNJ11 E23K literature.PMC2712777functional assay · directVillareal et al. studied the Kir6.2 E23K variant and reported that the variant increased K(ATP) channel activity, reduced ATP inhibition, increased open probability, and was associated with lower insulin secretory responses in glucose-tolerant adults. This supports a positive transport-activity tendency for T-containing genotypes, with stronger scoring for TT than CT.PMC6118367biomarker association · loose proxyChatterjee et al. treated T as the rs5219 diabetes-risk allele, but rs5219 was not a significant independent predictor of incident diabetes and did not modify the serum-potassium association. This is loose null context, not directional transport-activity evidence.

transport activity · CC

KCNJ11 transport activity

Not used for pathway scoring

rs5219 CC has no scored directional claim for KCNJ11 transport activity.

KCNJ11 rs5219 is scored as a cautious tendency toward higher K(ATP) channel activity for T-containing genotypes, strongest for TT.

Likely effectNo clear transport signal
Signal sizeMinimal signal
Evidence supportVery limited support
Report useEvidence only, not scored
Show study evidence
NCBI RefSNP recordidentity only · unknownNCBI RefSNP data place rs5219 in KCNJ11, which encodes potassium inwardly rectifying channel subfamily J member 11. This simplified record scores the common C and T genotype set used in the cited KCNJ11 E23K literature.PMC2712777functional assay · directVillareal et al. studied the Kir6.2 E23K variant and reported that the variant increased K(ATP) channel activity, reduced ATP inhibition, increased open probability, and was associated with lower insulin secretory responses in glucose-tolerant adults. This supports a positive transport-activity tendency for T-containing genotypes, with stronger scoring for TT than CT.PMC6118367biomarker association · loose proxyChatterjee et al. treated T as the rs5219 diabetes-risk allele, but rs5219 was not a significant independent predictor of incident diabetes and did not modify the serum-potassium association. This is loose null context, not directional transport-activity evidence.

Common symptoms people report

  • meal-related energy dips
  • glucose variability
  • family context around glucose dysregulation

Biomarkers to validate

Fasting glucose

Direct baseline context.

HbA1c

Longer-term glucose pattern.

Fasting insulin

Helps interpret secretion and sensitivity together.

Where DNA analysis helps

DNA helps prioritize secretion-related follow-up when glucose genes cluster together.

Example Insight

Your insulin-release pathway may deserve attention when glucose signals seem stronger than appetite cues alone would predict.

Suggested validation: fasting glucose and fasting insulin.

What to do next

  • Review KCNJ11 with TCF7L2 and SLC30A8 rather than in isolation.
  • Validate fasting glucose and HbA1c before drawing conclusions.
  • Use genetics to prioritize follow-up, not to label a diagnosis.

Upload your DNA file and receive a structured metabolic pathway analysis with prioritized insights and suggested validation markers.

Get My DNA Report

Related pages

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TCF7L2 diabetes gene

SLC30A8

SLC30A8 insulin gene

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ApoB

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Glucose regulation pathway

glucose regulation pathway

Lipid transport pathway

lipid transport pathway

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Related symptom angle

Fatigue after eating carbs

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