SLC31A1

Chr 9AR

solute carrier family 31 member 1

Also known as: COPT1, CTR1, NSCT

The protein is a high-affinity copper transporter that mediates copper uptake from the extracellular space to the cytoplasm and delivers copper directly to specific chaperones to control intracellular copper levels. Autosomal recessive mutations cause neurodegeneration and seizures due to copper transport defect. The pathogenic mechanism appears to involve dominant-negative effects that disrupt normal copper homeostasis.

OMIMResearchSummary from RefSeq, OMIM, UniProt, Mechanism
MultiplemechanismARLOEUF 0.991 OMIM phenotype
Clinical SummarySLC31A1
Population Constraint (gnomAD)
Low constraint (pLI 0.07) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
30 unique Pathogenic / Likely Pathogenic· 21 VUS of 61 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.99LOEUF
pLI 0.065
Z-score 1.60
OE 0.38 (0.170.99)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
1.08Z-score
OE missense 0.71 (0.580.85)
75 obs / 106.3 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.38 (0.170.99)
00.351.4
Missense OE0.71 (0.580.85)
00.61.4
Synonymous OE1.05
01.21.6
LoF obs/exp: 3 / 7.8Missense obs/exp: 75 / 106.3Syn Z: -0.21
Curated Mechanism (G2P)Gene2Phenotype (DDG2P) ↗
moderateSLC31A1-related congenital copper transport disorderOTHERAR

Predictions shown for reference only — model trained on dominant genes, not applicable to AR conditions.

DN
0.82top 10%
GOF
0.74top 25%
LOF
0.2189th %ile

The Badonyi & Marsh prediction model was trained exclusively on dominant disease genes. Predictions are not reliable for genes with autosomal recessive inheritance and are shown at reduced opacity for reference only.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

61 submitted variants in ClinVar

Classification Summary

Pathogenic26
Likely Pathogenic4
VUS21
Likely Benign3
Benign2
26
Pathogenic
4
Likely Pathogenic
21
VUS
3
Likely Benign
2
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
1
25
0
26
Likely Pathogenic
0
1
3
0
4
VUS
0
18
3
0
21
Likely Benign
0
2
1
0
3
Benign
0
1
0
1
2
Total02332156

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

Protein Context — Lollipop Plot

SLC31A1 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Clinical Literature
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