NM_002412.5:c.274+8555A>G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_002412.5(MGMT):​c.274+8555A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.626 in 152,056 control chromosomes in the GnomAD database, including 30,824 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.63 ( 30824 hom., cov: 33)

Consequence

MGMT
NM_002412.5 intron

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.725

Publications

8 publications found
Variant links:
Genes affected
MGMT (HGNC:7059): (O-6-methylguanine-DNA methyltransferase) Alkylating agents are potent carcinogens that can result in cell death, mutation and cancer. The protein encoded by this gene is a DNA repair protein that is involved in cellular defense against mutagenesis and toxicity from alkylating agents. The protein catalyzes transfer of methyl groups from O(6)-alkylguanine and other methylated moieties of the DNA to its own molecule, which repairs the toxic lesions. Methylation of the genes promoter has been associated with several cancer types, including colorectal cancer, lung cancer, lymphoma and glioblastoma. [provided by RefSeq, Sep 2015]

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.86).
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.726 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002412.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MGMT
NM_002412.5
MANE Select
c.274+8555A>G
intron
N/ANP_002403.3

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MGMT
ENST00000651593.1
MANE Select
c.274+8555A>G
intron
N/AENSP00000498729.1
MGMT
ENST00000306010.8
TSL:1
c.367+8555A>G
intron
N/AENSP00000302111.7
MGMT
ENST00000462672.1
TSL:3
n.520+994A>G
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.626
AC:
95135
AN:
151938
Hom.:
30807
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.481
Gnomad AMI
AF:
0.700
Gnomad AMR
AF:
0.547
Gnomad ASJ
AF:
0.637
Gnomad EAS
AF:
0.646
Gnomad SAS
AF:
0.662
Gnomad FIN
AF:
0.591
Gnomad MID
AF:
0.627
Gnomad NFE
AF:
0.732
Gnomad OTH
AF:
0.637
We have no GnomAD4 exomes data on this position. Probably position not covered by the project.
GnomAD4 genome
AF:
0.626
AC:
95182
AN:
152056
Hom.:
30824
Cov.:
33
AF XY:
0.617
AC XY:
45902
AN XY:
74336
show subpopulations
African (AFR)
AF:
0.481
AC:
19925
AN:
41438
American (AMR)
AF:
0.546
AC:
8335
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.637
AC:
2211
AN:
3470
East Asian (EAS)
AF:
0.646
AC:
3331
AN:
5156
South Asian (SAS)
AF:
0.663
AC:
3192
AN:
4812
European-Finnish (FIN)
AF:
0.591
AC:
6253
AN:
10584
Middle Eastern (MID)
AF:
0.622
AC:
183
AN:
294
European-Non Finnish (NFE)
AF:
0.732
AC:
49761
AN:
67998
Other (OTH)
AF:
0.640
AC:
1354
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1795
3590
5384
7179
8974
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
788
1576
2364
3152
3940
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.692
Hom.:
54933
Bravo
AF:
0.613
Asia WGS
AF:
0.669
AC:
2326
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
0.024
DANN
Benign
0.21
PhyloP100
-0.72
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs10764901; hg19: chr10-131514862; API