EPM2A

Chr 6

EPM2A glucan phosphatase, laforin

Also known as: EPM2, MELF, MELF2

This gene encodes a dual-specificity phosphatase and may be involved in the regulation of glycogen metabolism. The protein acts on complex carbohydrates to prevent glycogen hyperphosphorylation, thus avoiding the formation of insoluble aggregates. Loss-of-function mutations in this gene have been associated with Lafora disease, a rare, adult-onset recessive neurodegenerative disease, which results in myoclonus epilepsy and usually results in death several years after the onset of symptoms. The disease is characterized by the accumulation of insoluble particles called Lafora bodies, which are derived from glycogen. [provided by RefSeq, Jan 2018]

GeneReviewsResearchGenerating clinical summary…

Clinical highlights

Gene-disease validity (ClinGen)
Lafora disease · ARDefinitivesufficient evidence for diagnostic panels
0
Active trials
20
Pubs (1 yr)
P/LP submissions
P/LP missense
1.34
LOEUF
GOF
Mechanism· predicted
📖
GeneReview available — EPM2A
Authoritative clinical overview · Recommended first read
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Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
1.34LOEUF
pLI 0.000
Z-score 0.73
OE 0.77 (0.461.34)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint?
-0.26Z-score
OE missense 1.06 (0.931.20)
165 obs / 155.9 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios?
LoF OE?0.77 (0.461.34)
00.351.4
Missense OE?1.06 (0.931.20)
00.61.4
Synonymous OE?1.27
01.21.6
LoF obs/exp: 9 / 11.7Missense obs/exp: 165 / 155.9Syn Z: -1.64

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

EPM2A · protein map & ClinVar variants

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

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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