rs740602

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000754.4(COMT):​c.219G>A​(p.Gln73Gln) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0144 in 1,613,482 control chromosomes in the GnomAD database, including 1,302 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.056 ( 676 hom., cov: 33)
Exomes 𝑓: 0.010 ( 626 hom. )

Consequence

COMT
NM_000754.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2O:1

Conservation

PhyloP100: 1.35

Publications

17 publications found
Variant links:
Genes affected
COMT (HGNC:2228): (catechol-O-methyltransferase) Catechol-O-methyltransferase catalyzes the transfer of a methyl group from S-adenosylmethionine to catecholamines, including the neurotransmitters dopamine, epinephrine, and norepinephrine. This O-methylation results in one of the major degradative pathways of the catecholamine transmitters. In addition to its role in the metabolism of endogenous substances, COMT is important in the metabolism of catechol drugs used in the treatment of hypertension, asthma, and Parkinson disease. COMT is found in two forms in tissues, a soluble form (S-COMT) and a membrane-bound form (MB-COMT). The differences between S-COMT and MB-COMT reside within the N-termini. Several transcript variants are formed through the use of alternative translation initiation sites and promoters. [provided by RefSeq, Sep 2008]
COMT Gene-Disease associations (from GenCC):
  • paroxysmal dyskinesia
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.51).
BP6
Variant 22-19962745-G-A is Benign according to our data. Variant chr22-19962745-G-A is described in ClinVar as Benign. ClinVar VariationId is 828971.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.35 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.176 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COMTNM_000754.4 linkc.219G>A p.Gln73Gln synonymous_variant Exon 3 of 6 ENST00000361682.11 NP_000745.1 P21964-1A0A140VJG8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COMTENST00000361682.11 linkc.219G>A p.Gln73Gln synonymous_variant Exon 3 of 6 1 NM_000754.4 ENSP00000354511.6 P21964-1

Frequencies

GnomAD3 genomes
AF:
0.0560
AC:
8521
AN:
152194
Hom.:
671
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.179
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0273
Gnomad ASJ
AF:
0.00461
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0199
Gnomad FIN
AF:
0.00837
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00575
Gnomad OTH
AF:
0.0440
GnomAD2 exomes
AF:
0.0198
AC:
4958
AN:
250570
AF XY:
0.0169
show subpopulations
Gnomad AFR exome
AF:
0.184
Gnomad AMR exome
AF:
0.0130
Gnomad ASJ exome
AF:
0.00359
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0103
Gnomad NFE exome
AF:
0.00549
Gnomad OTH exome
AF:
0.0162
GnomAD4 exome
AF:
0.0100
AC:
14608
AN:
1461170
Hom.:
626
Cov.:
35
AF XY:
0.00972
AC XY:
7065
AN XY:
726866
show subpopulations
African (AFR)
AF:
0.184
AC:
6162
AN:
33478
American (AMR)
AF:
0.0146
AC:
654
AN:
44712
Ashkenazi Jewish (ASJ)
AF:
0.00253
AC:
66
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.0184
AC:
1585
AN:
86252
European-Finnish (FIN)
AF:
0.00977
AC:
518
AN:
53014
Middle Eastern (MID)
AF:
0.0264
AC:
152
AN:
5766
European-Non Finnish (NFE)
AF:
0.00388
AC:
4311
AN:
1111748
Other (OTH)
AF:
0.0192
AC:
1160
AN:
60374
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
813
1626
2440
3253
4066
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
284
568
852
1136
1420
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0561
AC:
8551
AN:
152312
Hom.:
676
Cov.:
33
AF XY:
0.0546
AC XY:
4067
AN XY:
74488
show subpopulations
African (AFR)
AF:
0.179
AC:
7447
AN:
41540
American (AMR)
AF:
0.0272
AC:
417
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00461
AC:
16
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.0201
AC:
97
AN:
4832
European-Finnish (FIN)
AF:
0.00837
AC:
89
AN:
10630
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.00575
AC:
391
AN:
68032
Other (OTH)
AF:
0.0436
AC:
92
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
389
777
1166
1554
1943
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
90
180
270
360
450
<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:
0.0302
Hom.:
301
Bravo
AF:
0.0639
Asia WGS
AF:
0.0160
AC:
57
AN:
3478
EpiCase
AF:
0.00594
EpiControl
AF:
0.00735

ClinVar

Significance: Benign
Submissions summary: Benign:2Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
May 04, 2021
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Tramadol response Other:1
Apr 28, 2018
Bruce Budowle Laboratory, University of North Texas Health Science Center
Significance:drug response
Review Status:no assertion criteria provided
Collection Method:research

- T:M1 = postmortem ratio or tramadol to O-desmethyltramadol; t-MP = model-based clustered metabolizer phenotype inferred from T:M1

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.51
CADD
Benign
6.3
DANN
Benign
0.83
PhyloP100
1.4
PromoterAI
-0.019
Neutral
Mutation Taster
=97/3
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: rs740602; hg19: chr22-19950268; COSMIC: COSV52889602; COSMIC: COSV52889602; API