Genetic Variant MGLL:p.Ala136Thr (chr3-127721157-C-T) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_007283.7(MGLL):c.406G>A(p.Ala136Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,684 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

MGLL
NM_007283.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.47

Publications

1 publications found

Variant links:

Genes affected

MGLL (HGNC:17038): (monoglyceride lipase) This gene encodes a serine hydrolase of the AB hydrolase superfamily that catalyzes the conversion of monoacylglycerides to free fatty acids and glycerol. The encoded protein plays a critical role in several physiological processes including pain and nociperception through hydrolysis of the endocannabinoid 2-arachidonoylglycerol. Expression of this gene may play a role in cancer tumorigenesis and metastasis. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Feb 2012]

MGLL links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.84

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MGLL	NM_007283.7 link	c.406G>A	p.Ala136Thr	missense_variant	Exon 5 of 8	ENST00000265052.10	NP_009214.1	Q99685A0A0C4DFN3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MGLL	ENST00000265052.10 link	c.406G>A	p.Ala136Thr	missense_variant	Exon 5 of 8	1	NM_007283.7	ENSP00000265052.5		A0A0C4DFN3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000402

AC:

AN:

249062

AF XY:

0.00000739

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000885

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461684

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727152

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53330

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1111904

Other (OTH)

AF:

0.0000166

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 03, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.406G>A (p.A136T) alteration is located in exon 5 (coding exon 5) of the MGLL gene. This alteration results from a G to A substitution at nucleotide position 406, causing the alanine (A) at amino acid position 136 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Pathogenic

0.26

BayesDel_noAF

Uncertain

0.13

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.085

.;.;T;T;T;.;.;T;T

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.98

D;D;D;.;D;D;D;D;D

M_CAP

Uncertain

0.11

MetaRNN

Pathogenic

0.84

D;D;D;D;D;D;D;D;D

MetaSVM

Uncertain

-0.13

MutationAssessor

Uncertain

2.7

.;.;M;M;.;.;.;.;.

PhyloP100

7.5

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-1.6

N;N;N;N;N;N;.;N;N

REVEL

Uncertain

0.48

Sift

Benign

0.38

T;T;T;T;T;T;.;T;T

Sift4G

Benign

0.34

T;T;T;T;T;T;.;T;.

Polyphen

0.90

.;.;P;P;.;P;.;.;.

Vest4

0.94

MutPred

0.65

.;.;Gain of glycosylation at T131 (P = 0.0341);Gain of glycosylation at T131 (P = 0.0341);.;.;Gain of glycosylation at T131 (P = 0.0341);.;.;

MVP

0.85

MPC

0.56

ClinPred

0.93

GERP RS

5.3

PromoterAI

-0.071

Neutral

(source)

Varity_R

0.47

gMVP

0.88

Mutation Taster

=29/71

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

3-127721157-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over