rs199624315

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_153033.5(KCTD7):​c.362G>A​(p.Arg121His) variant causes a missense change. The variant allele was found at a frequency of 0.000026 in 1,614,220 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R121L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

KCTD7
NM_153033.5 missense

Scores

1
3
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 6.16

Publications

2 publications found
Variant links:
Genes affected
KCTD7 (HGNC:21957): (potassium channel tetramerization domain containing 7) This gene encodes a member of the potassium channel tetramerization domain-containing protein family. Family members are identified on a structural basis and contain an amino-terminal domain similar to the T1 domain present in the voltage-gated potassium channel. Mutations in this gene have been associated with progressive myoclonic epilepsy-3. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Jan 2011]
KCTD7 Gene-Disease associations (from GenCC):
  • progressive myoclonic epilepsy type 3
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P, Genomics England PanelApp, Ambry Genetics
  • progressive myoclonus epilepsy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 6 uncertain in NM_153033.5
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.18346134).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_153033.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KCTD7
NM_153033.5
MANE Select
c.362G>Ap.Arg121His
missense
Exon 3 of 4NP_694578.1Q96MP8-1
KCTD7
NM_001167961.2
c.362G>Ap.Arg121His
missense
Exon 3 of 5NP_001161433.1Q96MP8-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KCTD7
ENST00000639828.2
TSL:2 MANE Select
c.362G>Ap.Arg121His
missense
Exon 3 of 4ENSP00000492240.1Q96MP8-1
KCTD7
ENST00000443322.1
TSL:1
c.362G>Ap.Arg121His
missense
Exon 3 of 5ENSP00000411624.1Q96MP8-2
ENSG00000284461
ENST00000503687.2
TSL:2
n.192G>A
non_coding_transcript_exon
Exon 2 of 13ENSP00000421074.1E9PHB8

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152208
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000318
AC:
8
AN:
251460
AF XY:
0.0000294
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000260
AC:
38
AN:
1461894
Hom.:
0
Cov.:
32
AF XY:
0.0000234
AC XY:
17
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.000134
AC:
6
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.000126
AC:
5
AN:
39700
South Asian (SAS)
AF:
0.0000580
AC:
5
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000153
AC:
17
AN:
1112012
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000263
AC:
4
AN:
152326
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74480
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41576
American (AMR)
AF:
0.0000654
AC:
1
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.000415
AC:
2
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68040
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000247
AC:
3

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not provided (1)
-
1
-
Progressive myoclonic epilepsy type 3 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.075
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
20
DANN
Benign
0.75
DEOGEN2
Benign
0.24
T
Eigen
Benign
-0.15
Eigen_PC
Benign
-0.0045
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.90
D
M_CAP
Benign
0.033
D
MetaRNN
Benign
0.18
T
MetaSVM
Benign
-0.70
T
MutationAssessor
Benign
0.93
L
PhyloP100
6.2
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
1.4
N
REVEL
Uncertain
0.38
Sift
Benign
0.57
T
Sift4G
Benign
0.14
T
Polyphen
0.14
B
Vest4
0.35
MutPred
0.52
Gain of catalytic residue at R119 (P = 0.0265)
MVP
0.79
ClinPred
0.090
T
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.11
gMVP
0.60
Mutation Taster
=70/30
polymorphism

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: rs199624315; hg19: chr7-66103287; COSMIC: COSV99299240; COSMIC: COSV99299240; API