rs7068256

Variant summary

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

The NM_002412.5(MGMT):​c.126-7768G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.654 in 151,854 control chromosomes in the GnomAD database, including 34,541 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 0.65 ( 34540 hom., cov: 31)
Exomes 𝑓: 0.75 ( 1 hom. )

Consequence

MGMT
NM_002412.5 intron

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.406

Publications

5 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=-0.89).
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.773 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.126-7768G>A
intron
N/ANP_002403.3

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MGMT
ENST00000651593.1
MANE Select
c.126-7768G>A
intron
N/AENSP00000498729.1
MGMT
ENST00000306010.8
TSL:1
c.219-7768G>A
intron
N/AENSP00000302111.7
ENSG00000237224
ENST00000598332.2
TSL:5
n.304+752C>T
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.655
AC:
99329
AN:
151732
Hom.:
34545
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.401
Gnomad AMI
AF:
0.628
Gnomad AMR
AF:
0.677
Gnomad ASJ
AF:
0.747
Gnomad EAS
AF:
0.637
Gnomad SAS
AF:
0.765
Gnomad FIN
AF:
0.737
Gnomad MID
AF:
0.772
Gnomad NFE
AF:
0.779
Gnomad OTH
AF:
0.669
GnomAD4 exome
AF:
0.750
AC:
3
AN:
4
Hom.:
1
Cov.:
0
AF XY:
0.500
AC XY:
1
AN XY:
2
show subpopulations
African (AFR)
AC:
0
AN:
0
American (AMR)
AC:
0
AN:
0
Ashkenazi Jewish (ASJ)
AC:
0
AN:
0
East Asian (EAS)
AC:
0
AN:
0
South Asian (SAS)
AC:
0
AN:
0
European-Finnish (FIN)
AC:
0
AN:
0
Middle Eastern (MID)
AC:
0
AN:
0
European-Non Finnish (NFE)
AF:
0.750
AC:
3
AN:
4
Other (OTH)
AC:
0
AN:
0
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.654
AC:
99342
AN:
151850
Hom.:
34540
Cov.:
31
AF XY:
0.654
AC XY:
48530
AN XY:
74190
show subpopulations
African (AFR)
AF:
0.401
AC:
16586
AN:
41376
American (AMR)
AF:
0.676
AC:
10325
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.747
AC:
2590
AN:
3468
East Asian (EAS)
AF:
0.637
AC:
3283
AN:
5154
South Asian (SAS)
AF:
0.765
AC:
3678
AN:
4808
European-Finnish (FIN)
AF:
0.737
AC:
7755
AN:
10520
Middle Eastern (MID)
AF:
0.765
AC:
225
AN:
294
European-Non Finnish (NFE)
AF:
0.779
AC:
52915
AN:
67948
Other (OTH)
AF:
0.670
AC:
1412
AN:
2106
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
1554
3108
4661
6215
7769
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
782
1564
2346
3128
3910
<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:
0.744
Hom.:
19357
Bravo
AF:
0.631
Asia WGS
AF:
0.667
AC:
2318
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.96
DANN
Benign
0.70
PhyloP100
-0.41
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: rs7068256; hg19: chr10-131498391; API