rs72888274

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The ENST00000406134.5(MSH2):​c.2717C>T​(p.Ala906Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000516 in 1,611,820 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/15 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0027 ( 3 hom., cov: 32)
Exomes 𝑓: 0.00029 ( 2 hom. )

Consequence

MSH2
ENST00000406134.5 missense

Scores

15

Clinical Significance

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

Conservation

PhyloP100: -0.555

Publications

3 publications found
Variant links:
Genes affected
MSH2 (HGNC:7325): (mutS homolog 2) This locus is frequently mutated in hereditary nonpolyposis colon cancer (HNPCC). When cloned, it was discovered to be a human homolog of the E. coli mismatch repair gene mutS, consistent with the characteristic alterations in microsatellite sequences (RER+ phenotype) found in HNPCC. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]
KCNK12 (HGNC:6274): (potassium two pore domain channel subfamily K member 12) This gene encodes one of the members of the superfamily of potassium channel proteins containing two pore-forming P domains. The product of this gene has not been shown to be a functional channel, however, it may require other non-pore-forming proteins for activity. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0038554072).
BP6
Variant 2-47512385-C-T is Benign according to our data. Variant chr2-47512385-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 135565.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00267 (406/152246) while in subpopulation AFR AF = 0.00927 (385/41538). AF 95% confidence interval is 0.00851. There are 3 homozygotes in GnomAd4. There are 185 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 3 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KCNK12NM_022055.2 linkc.*8522G>A 3_prime_UTR_variant Exon 2 of 2 ENST00000327876.5 NP_071338.1 Q9HB15

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KCNK12ENST00000327876.5 linkc.*8522G>A 3_prime_UTR_variant Exon 2 of 2 1 NM_022055.2 ENSP00000327611.3 Q9HB15

Frequencies

GnomAD3 genomes
AF:
0.00267
AC:
406
AN:
152128
Hom.:
3
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00930
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000851
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00144
GnomAD2 exomes
AF:
0.000815
AC:
195
AN:
239382
AF XY:
0.000761
show subpopulations
Gnomad AFR exome
AF:
0.0109
Gnomad AMR exome
AF:
0.000996
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000941
Gnomad OTH exome
AF:
0.000842
GnomAD4 exome
AF:
0.000292
AC:
426
AN:
1459574
Hom.:
2
Cov.:
30
AF XY:
0.000260
AC XY:
189
AN XY:
725936
show subpopulations
African (AFR)
AF:
0.00857
AC:
287
AN:
33472
American (AMR)
AF:
0.000943
AC:
42
AN:
44558
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26106
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39684
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85948
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52248
Middle Eastern (MID)
AF:
0.00121
AC:
7
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000396
AC:
44
AN:
1111454
Other (OTH)
AF:
0.000762
AC:
46
AN:
60336
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
22
44
67
89
111
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.00267
AC:
406
AN:
152246
Hom.:
3
Cov.:
32
AF XY:
0.00249
AC XY:
185
AN XY:
74432
show subpopulations
African (AFR)
AF:
0.00927
AC:
385
AN:
41538
American (AMR)
AF:
0.000850
AC:
13
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68010
Other (OTH)
AF:
0.00142
AC:
3
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
20
40
61
81
101
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00301
Hom.:
2
Bravo
AF:
0.00331
ESP6500AA
AF:
0.00970
AC:
17
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000887
AC:
103
Asia WGS
AF:
0.000866
AC:
4
AN:
3478

ClinVar

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

Submissions by phenotype

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Hereditary cancer-predisposing syndrome Benign:1
Feb 09, 2015
Color Diagnostics, LLC DBA Color Health
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Other:1
Sep 19, 2013
ITMI
Significance:not provided
Review Status:no classification provided
Collection Method:reference population

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.079
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
11
DANN
Benign
0.72
Eigen
Benign
-0.98
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.0029
N
LIST_S2
Benign
0.50
T;T
MetaRNN
Benign
0.0039
T;T
MetaSVM
Benign
-0.69
T
PhyloP100
-0.56
PROVEAN
Benign
1.1
.;N
REVEL
Benign
0.095
Sift
Benign
0.21
.;T
Sift4G
Benign
0.34
.;T
Polyphen
0.0
.;B
Vest4
0.091
MVP
0.36
ClinPred
0.0017
T
GERP RS
-0.45
Mutation Taster
=98/2
polymorphism

Splicing

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

Publications

Other links and lift over

dbSNP: rs72888274; hg19: chr2-47739524; COSMIC: COSV99070993; COSMIC: COSV99070993; API