rs1387339389

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002246.3(KCNK3):​c.148G>A​(p.Ala50Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000189 in 1,586,226 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

KCNK3
NM_002246.3 missense

Scores

1
1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.274

Publications

0 publications found
Variant links:
Genes affected
KCNK3 (HGNC:6278): (potassium two pore domain channel subfamily K member 3) This gene encodes a member of the superfamily of potassium channel proteins that contain two pore-forming P domains. The encoded protein is an outwardly rectifying channel that is sensitive to changes in extracellular pH and is inhibited by extracellular acidification. Also referred to as an acid-sensitive potassium channel, it is activated by the anesthetics halothane and isoflurane. Although three transcripts are detected in northern blots, there is currently no sequence available to confirm transcript variants for this gene. [provided by RefSeq, Aug 2008]
KCNK3 Gene-Disease associations (from GenCC):
  • pulmonary arterial hypertension
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • pulmonary hypertension, primary, 4
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • heritable pulmonary arterial hypertension
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07120851).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002246.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KCNK3
NM_002246.3
MANE Select
c.148G>Ap.Ala50Thr
missense
Exon 1 of 2NP_002237.1O14649

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KCNK3
ENST00000302909.4
TSL:1 MANE Select
c.148G>Ap.Ala50Thr
missense
Exon 1 of 2ENSP00000306275.3O14649
ENSG00000295291
ENST00000729046.1
n.15C>T
non_coding_transcript_exon
Exon 1 of 2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152096
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000139
AC:
2
AN:
1434130
Hom.:
0
Cov.:
32
AF XY:
0.00000281
AC XY:
2
AN XY:
712452
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32646
American (AMR)
AF:
0.00
AC:
0
AN:
42070
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25814
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37832
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83918
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
43148
Middle Eastern (MID)
AF:
0.000371
AC:
2
AN:
5396
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1103886
Other (OTH)
AF:
0.00
AC:
0
AN:
59420
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00000657
AC:
1
AN:
152096
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74284
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41460
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67956
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
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

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.67
CADD
Benign
20
DANN
Benign
0.88
DEOGEN2
Benign
0.31
T
Eigen
Benign
-0.67
Eigen_PC
Benign
-0.53
FATHMM_MKL
Benign
0.035
N
LIST_S2
Benign
0.58
T
M_CAP
Uncertain
0.20
D
MetaRNN
Benign
0.071
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
-0.34
N
PhyloP100
0.27
PrimateAI
Pathogenic
0.90
D
PROVEAN
Benign
0.010
N
REVEL
Benign
0.043
Sift
Benign
0.61
T
Sift4G
Benign
0.57
T
Polyphen
0.0020
B
Vest4
0.029
MutPred
0.35
Gain of phosphorylation at A50 (P = 0.0426)
MVP
0.27
ClinPred
0.045
T
GERP RS
3.1
PromoterAI
0.039
Neutral
Varity_R
0.16
gMVP
0.57
Mutation Taster
=61/39
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: rs1387339389; hg19: chr2-26915891; API