SLC16A13

Chr 17AD

solute carrier family 16 member 13

Also known as: MCT13

The protein functions as a proton-linked monocarboxylate transporter that catalyzes transport of monocarboxylates across cellular membranes and is located in the Golgi apparatus and cytosol. Mutations cause severe insulin resistance and type 2 diabetes mellitus with autosomal dominant inheritance. The gene shows very low constraint against loss-of-function variants (pLI near 0, LOEUF 1.7), suggesting tolerance to protein loss.

OMIMResearchSummary from RefSeq, OMIM, UniProt
MultiplemechanismADLOEUF 1.7130 OMIM phenotypes
Clinical SummarySLC16A13
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
20 unique Pathogenic / Likely Pathogenic· 59 VUS of 86 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.71LOEUF
pLI 0.000
Z-score -0.46
OE 1.14 (0.761.71)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
0.18Z-score
OE missense 0.97 (0.871.08)
228 obs / 235.8 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE1.14 (0.761.71)
00.351.4
Missense OE0.97 (0.871.08)
00.61.4
Synonymous OE0.90
01.21.6
LoF obs/exp: 15 / 13.2Missense obs/exp: 228 / 235.8Syn Z: 0.86
DN
0.6647th %ile
GOF
0.81top 10%
LOF
0.2580th %ile

This gene has evidence for multiple mechanisms of pathogenicity (gain-of-function and dominant-negative). Both the Badonyi & Marsh prediction and the broader genomic evidence point to gain-of-function as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

GOFprediction above median
DNprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

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

ClinVar Variant Classifications

86 submitted variants in ClinVar

Classification Summary

Pathogenic19
Likely Pathogenic1
VUS59
Likely Benign3
19
Pathogenic
1
Likely Pathogenic
59
VUS
3
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
1
0
18
0
19
Likely Pathogenic
0
0
1
0
1
VUS
0
52
7
0
59
Likely Benign
0
3
0
0
3
Benign
0
0
0
0
0
Total15526082

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

View in ClinVar →

Protein Context — Lollipop Plot

SLC16A13 · 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.

Search ClinicalTrials.gov →
Clinical Literature
Open Research Assistant →
Key Publications
Landmark & review papers · by relevance
PubMed
Top 1 results · since 2015Search PubMed ↗