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GeneBe

8-139618476-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 1P and 1B. PP2BP4

The NM_001282534.2(KCNK9):​c.907C>T​(p.Arg303Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,613,798 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as association (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

KCNK9
NM_001282534.2 missense

Scores

3
11

Clinical Significance

association no assertion criteria provided O:1

Conservation

PhyloP100: 1.98
Variant links:
Genes affected
KCNK9 (HGNC:6283): (potassium two pore domain channel subfamily K member 9) This gene encodes a protein that contains multiple transmembrane regions and two pore-forming P domains and functions as a pH-dependent potassium channel. Amplification and overexpression of this gene have been observed in several types of human carcinomas. This gene is imprinted in the brain, with preferential expression from the maternal allele. A mutation in this gene was associated with Birk-Barel dysmorphism syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2017]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PP2
Missense variant where missense usually causes diseases, KCNK9
BP4
Computational evidence support a benign effect (MetaRNN=0.28984863).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KCNK9NM_001282534.2 linkuse as main transcriptc.907C>T p.Arg303Cys missense_variant 2/2 ENST00000520439.3
KCNK9NR_104210.2 linkuse as main transcriptn.1038C>T non_coding_transcript_exon_variant 2/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KCNK9ENST00000520439.3 linkuse as main transcriptc.907C>T p.Arg303Cys missense_variant 2/21 NM_001282534.2 P1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152202
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251026
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135736
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.00000274
AC:
4
AN:
1461596
Hom.:
0
Cov.:
29
AF XY:
0.00000138
AC XY:
1
AN XY:
727112
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152202
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: association
Submissions summary: Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Autism spectrum disorder Other:1
association, no assertion criteria providedresearchUniversity of Washington Center for Mendelian Genomics, University of Washington-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.55
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.51
D;D;D;D;.
Eigen
Uncertain
0.27
Eigen_PC
Benign
0.20
FATHMM_MKL
Benign
0.76
D
M_CAP
Benign
0.0081
T
MetaRNN
Benign
0.29
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.8
L;L;L;L;.
MutationTaster
Benign
0.99
D;D;D
PrimateAI
Benign
0.38
T
Polyphen
1.0
D;D;D;D;.
Vest4
0.27, 0.22
MutPred
0.45
Loss of disorder (P = 0.0644);Loss of disorder (P = 0.0644);Loss of disorder (P = 0.0644);Loss of disorder (P = 0.0644);.;
MVP
0.63
MPC
2.1
ClinPred
0.96
D
GERP RS
3.0
Varity_R
0.13
gMVP
0.80

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs775502608; hg19: chr8-140630719; COSMIC: COSV57279793; COSMIC: COSV57279793; API