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GeneBe

8-139618345-G-A

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2

The NM_001282534.2(KCNK9):​c.1038C>T​(p.Leu346=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000561 in 1,614,186 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0029 ( 3 hom., cov: 32)
Exomes 𝑓: 0.00031 ( 4 hom. )

Consequence

KCNK9
NM_001282534.2 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.06
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 Benign. Variant got -11 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP6
Variant 8-139618345-G-A is Benign according to our data. Variant chr8-139618345-G-A is described in ClinVar as [Benign]. Clinvar id is 719497.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=2.07 with no splicing effect.
BS2
High AC in GnomAd4 at 448 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KCNK9NM_001282534.2 linkuse as main transcriptc.1038C>T p.Leu346= synonymous_variant 2/2 ENST00000520439.3
KCNK9NR_104210.2 linkuse as main transcriptn.1169C>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.1038C>T p.Leu346= synonymous_variant 2/21 NM_001282534.2 P1

Frequencies

GnomAD3 genomes
AF:
0.00295
AC:
449
AN:
152174
Hom.:
3
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0106
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
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:
0.00
Gnomad OTH
AF:
0.000955
GnomAD3 exomes
AF:
0.000827
AC:
208
AN:
251488
Hom.:
3
AF XY:
0.000581
AC XY:
79
AN XY:
135922
show subpopulations
Gnomad AFR exome
AF:
0.0113
Gnomad AMR exome
AF:
0.000549
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000313
AC:
458
AN:
1461894
Hom.:
4
Cov.:
29
AF XY:
0.000257
AC XY:
187
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.0115
Gnomad4 AMR exome
AF:
0.000514
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.000762
GnomAD4 genome
AF:
0.00294
AC:
448
AN:
152292
Hom.:
3
Cov.:
32
AF XY:
0.00274
AC XY:
204
AN XY:
74466
show subpopulations
Gnomad4 AFR
AF:
0.0106
Gnomad4 AMR
AF:
0.000457
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000945
Alfa
AF:
0.00182
Hom.:
0
Bravo
AF:
0.00370
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeApr 16, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.48
CADD
Benign
5.7
DANN
Benign
0.71

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: rs76573007; hg19: chr8-140630588; API