rs10967705

Variant summary

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

The NM_133497.4(KCNV2):​c.183C>G​(p.Gly61Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.579 in 1,613,780 control chromosomes in the GnomAD database, including 273,511 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. G61G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.60 ( 27919 hom., cov: 32)
Exomes 𝑓: 0.58 ( 245592 hom. )

Consequence

KCNV2
NM_133497.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -9.44

Publications

27 publications found
Variant links:
Genes affected
KCNV2 (HGNC:19698): (potassium voltage-gated channel modifier subfamily V member 2) Voltage-gated potassium (Kv) channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume. This gene encodes a member of the potassium voltage-gated channel subfamily V. This member is identified as a 'silent subunit', and it does not form homomultimers, but forms heteromultimers with several other subfamily members. Through obligatory heteromerization, it exerts a function-altering effect on other potassium channel subunits. This protein is strongly expressed in pancreas and has a weaker expression in several other tissues. [provided by RefSeq, Jul 2008]
KCNV2 Gene-Disease associations (from GenCC):
  • cone dystrophy with supernormal rod response
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet
  • inherited retinal dystrophy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen

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=-0.93).
BP6
Variant 9-2717922-C-G is Benign according to our data. Variant chr9-2717922-C-G is described in ClinVar as Benign. ClinVar VariationId is 96357.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-9.44 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.771 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_133497.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KCNV2
NM_133497.4
MANE Select
c.183C>Gp.Gly61Gly
synonymous
Exon 1 of 2NP_598004.1Q8TDN2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KCNV2
ENST00000382082.4
TSL:1 MANE Select
c.183C>Gp.Gly61Gly
synonymous
Exon 1 of 2ENSP00000371514.3Q8TDN2
ENSG00000286670
ENST00000768783.1
n.113+28376G>C
intron
N/A
ENSG00000286670
ENST00000768784.1
n.156+14023G>C
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.603
AC:
91541
AN:
151872
Hom.:
27888
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.631
Gnomad AMI
AF:
0.545
Gnomad AMR
AF:
0.687
Gnomad ASJ
AF:
0.614
Gnomad EAS
AF:
0.790
Gnomad SAS
AF:
0.624
Gnomad FIN
AF:
0.540
Gnomad MID
AF:
0.566
Gnomad NFE
AF:
0.561
Gnomad OTH
AF:
0.614
GnomAD2 exomes
AF:
0.618
AC:
155283
AN:
251212
AF XY:
0.609
show subpopulations
Gnomad AFR exome
AF:
0.635
Gnomad AMR exome
AF:
0.783
Gnomad ASJ exome
AF:
0.610
Gnomad EAS exome
AF:
0.781
Gnomad FIN exome
AF:
0.534
Gnomad NFE exome
AF:
0.558
Gnomad OTH exome
AF:
0.589
GnomAD4 exome
AF:
0.576
AC:
842285
AN:
1461790
Hom.:
245592
Cov.:
67
AF XY:
0.576
AC XY:
418852
AN XY:
727182
show subpopulations
African (AFR)
AF:
0.638
AC:
21352
AN:
33480
American (AMR)
AF:
0.772
AC:
34544
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.611
AC:
15960
AN:
26132
East Asian (EAS)
AF:
0.809
AC:
32100
AN:
39698
South Asian (SAS)
AF:
0.615
AC:
53011
AN:
86252
European-Finnish (FIN)
AF:
0.535
AC:
28567
AN:
53416
Middle Eastern (MID)
AF:
0.577
AC:
3328
AN:
5768
European-Non Finnish (NFE)
AF:
0.556
AC:
618108
AN:
1111928
Other (OTH)
AF:
0.585
AC:
35315
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
23986
47972
71957
95943
119929
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
17538
35076
52614
70152
87690
<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:
0.603
AC:
91620
AN:
151990
Hom.:
27919
Cov.:
32
AF XY:
0.604
AC XY:
44851
AN XY:
74286
show subpopulations
African (AFR)
AF:
0.631
AC:
26161
AN:
41452
American (AMR)
AF:
0.687
AC:
10498
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.614
AC:
2129
AN:
3466
East Asian (EAS)
AF:
0.791
AC:
4069
AN:
5144
South Asian (SAS)
AF:
0.624
AC:
3001
AN:
4812
European-Finnish (FIN)
AF:
0.540
AC:
5720
AN:
10584
Middle Eastern (MID)
AF:
0.554
AC:
163
AN:
294
European-Non Finnish (NFE)
AF:
0.561
AC:
38082
AN:
67940
Other (OTH)
AF:
0.617
AC:
1301
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
1860
3720
5581
7441
9301
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
762
1524
2286
3048
3810
<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:
0.578
Hom.:
8271
Bravo
AF:
0.618
EpiCase
AF:
0.556
EpiControl
AF:
0.563

ClinVar

ClinVar submissions
Significance:Benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
3
not provided (3)
-
-
2
Cone dystrophy with supernormal rod response (2)
-
-
2
not specified (2)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.93
CADD
Benign
0.029
DANN
Benign
0.57
PhyloP100
-9.4
PromoterAI
-0.020
Neutral
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: rs10967705; hg19: chr9-2717922; COSMIC: COSV66055463; COSMIC: COSV66055463; API