10-117197539-G-A

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_181840.1(KCNK18):​c.51G>A​(p.Leu17Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000279 in 1,614,150 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0016 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

KCNK18
NM_181840.1 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.02
Variant links:
Genes affected
KCNK18 (HGNC:19439): (potassium two pore domain channel subfamily K member 18) Potassium channels play a role in many cellular processes including maintenance of the action potential, muscle contraction, hormone secretion, osmotic regulation, and ion flow. This gene encodes a member of the superfamily of potassium channel proteins containing two pore-forming P domains and the encoded protein functions as an outward rectifying potassium channel. A mutation in this gene has been found to be associated with migraine with aura.[provided by RefSeq, Jan 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.54).
BP6
Variant 10-117197539-G-A is Benign according to our data. Variant chr10-117197539-G-A is described in ClinVar as [Benign]. Clinvar id is 2063627.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.02 with no splicing effect.
BS2
High AC in GnomAd4 at 238 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KCNK18NM_181840.1 linkuse as main transcriptc.51G>A p.Leu17Leu synonymous_variant 1/3 ENST00000334549.1 NP_862823.1 Q7Z418

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KCNK18ENST00000334549.1 linkuse as main transcriptc.51G>A p.Leu17Leu synonymous_variant 1/31 NM_181840.1 ENSP00000334650.1 Q7Z418

Frequencies

GnomAD3 genomes
AF:
0.00156
AC:
238
AN:
152226
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00528
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000785
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:
0.0000588
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.000414
AC:
104
AN:
251254
Hom.:
0
AF XY:
0.000324
AC XY:
44
AN XY:
135810
show subpopulations
Gnomad AFR exome
AF:
0.00566
Gnomad AMR exome
AF:
0.000231
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:
0.00000881
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000146
AC:
213
AN:
1461806
Hom.:
0
Cov.:
32
AF XY:
0.000138
AC XY:
100
AN XY:
727202
show subpopulations
Gnomad4 AFR exome
AF:
0.00406
Gnomad4 AMR exome
AF:
0.000380
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000243
Gnomad4 OTH exome
AF:
0.000480
GnomAD4 genome
AF:
0.00156
AC:
238
AN:
152344
Hom.:
2
Cov.:
32
AF XY:
0.00144
AC XY:
107
AN XY:
74498
show subpopulations
Gnomad4 AFR
AF:
0.00526
Gnomad4 AMR
AF:
0.000784
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.000752
Hom.:
0
Bravo
AF:
0.00173
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 01, 2022- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.54
CADD
Benign
3.1
DANN
Benign
0.57

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: rs149451689; hg19: chr10-118957050; API