Trait
Low blood magnesium levels
Clinical name: Hypomagnesemia
The concentration of magnesium in the blood circulation is below the lower limit of normal.
Summary
- Also called
- Decreased magnesium(2+) concentration, Decreased magnesium(2+) level, Decreased magnesium(2+) level in blood, Low blood Mg levels, Reduced magnesium(2+) concentration, Reduced magnesium(2+) level, Reduced magnesium(2+) level in blood
- Body system
- Laboratory abnormality
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
Read the genes linked to Low blood magnesium levels, and the rest of your genome, with one test.
From $449Free shipping · Results in 6–8 weeks
Get my Genome Test30 genes linked to Low blood magnesium levels
Changes in these genes cause rare conditions in which Low blood magnesium levels is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.
| Gene | How often it is seen | Conditions |
|---|---|---|
| ATP1A1ATPase Na+/K+ transporting subunit alpha 1 | Always | In 2 conditions |
| CLDN19claudin 19 | Always | In 1 condition |
| CNNM2cyclin and CBS domain divalent metal cation transport mediator 2 | Always | In 2 conditions |
| CTNScystinosin, lysosomal cystine transporter | Always | In 1 condition |
| EGFepidermal growth factor | Always | In 1 condition |
| FXYD2FXYD domain containing ion transport regulator 2 | Always | In 1 condition |
| KCNJ10potassium inwardly rectifying channel subfamily J member 10 | Always | In 2 conditions |
| RRAGDRas related GTP binding D | Always | In 2 conditions |
| SARS2seryl-tRNA synthetase 2, mitochondrial | Always | In 1 condition |
| TRPM6transient receptor potential cation channel subfamily M member 6 | Always | In 1 condition |
| CACNA1Scalcium voltage-gated channel subunit alpha1 S | Very often (80–99%) | In 1 condition |
| CASRcalcium sensing receptor | Very often (80–99%) | In 2 conditions |
| CLDN16claudin 16 | Very often (80–99%) | In 1 condition |
| GABRA3gamma-aminobutyric acid type A receptor subunit alpha3 | Very often (80–99%) | In 1 condition |
| KCNJ18potassium inwardly rectifying channel subfamily J member 18 | Very often (80–99%) | In 1 condition |
| BSNDbarttin CLCNK type accessory subunit beta | Often (30–79%) | In 1 condition |
| CLCNKAchloride voltage-gated channel Ka | Often (30–79%) | In 1 condition |
| CLCNKBchloride voltage-gated channel Kb | Often (30–79%) | In 2 conditions |
| DBHdopamine beta-hydroxylase | Often (30–79%) | In 1 condition |
| GNA11G protein subunit alpha 11 | Often (30–79%) | In 1 condition |
| SLC12A3solute carrier family 12 member 3 | Often (30–79%) | In 2 conditions |
| FOXP3forkhead box P3 | Sometimes (5–29%) | In 1 condition |
| GCM2GCM transcription factor 2 | Sometimes (5–29%) | In 1 condition |
| GNB2G protein subunit beta 2 | Sometimes (5–29%) | In 1 condition |
| KCNJ1potassium inwardly rectifying channel subfamily J member 1 | Sometimes (5–29%) | In 1 condition |
| PCBD1pterin-4 alpha-carbinolamine dehydratase 1 | Sometimes (5–29%) | In 1 condition |
| POLRMTRNA polymerase mitochondrial | Sometimes (5–29%) | In 1 condition |
| TIAM1TIAM Rac1 associated GEF 1 | Sometimes (5–29%) | In 1 condition |
| PLVAPplasmalemma vesicle associated protein | Not recorded | In 1 condition |
| TBCEtubulin folding cofactor E | Not recorded | In 1 condition |
How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.
Broader traits
Where this comes from
- The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
One test. A lifetime of answers.
From $449Free shipping · Results in 6–8 weeks