19-43769484-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_002250.3(KCNN4):​c.1007C>T​(p.Ala336Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000149 in 1,614,120 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

KCNN4
NM_002250.3 missense

Scores

1
7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.138
Variant links:
Genes affected
KCNN4 (HGNC:6293): (potassium calcium-activated channel subfamily N member 4) The protein encoded by this gene is part of a potentially heterotetrameric voltage-independent potassium channel that is activated by intracellular calcium. Activation is followed by membrane hyperpolarization, which promotes calcium influx. The encoded protein may be part of the predominant calcium-activated potassium channel in T-lymphocytes. This gene is similar to other KCNN family potassium channel genes, but it differs enough to possibly be considered as part of a new subfamily. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAdExome4 at 23 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KCNN4NM_002250.3 linkuse as main transcriptc.1007C>T p.Ala336Val missense_variant 6/9 ENST00000648319.1 NP_002241.1
KCNN4XM_005258882.3 linkuse as main transcriptc.911C>T p.Ala304Val missense_variant 5/8 XP_005258939.1
KCNN4XM_005258883.3 linkuse as main transcriptc.818C>T p.Ala273Val missense_variant 6/9 XP_005258940.1
KCNN4XM_047438794.1 linkuse as main transcriptc.335C>T p.Ala112Val missense_variant 4/7 XP_047294750.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KCNN4ENST00000648319.1 linkuse as main transcriptc.1007C>T p.Ala336Val missense_variant 6/9 NM_002250.3 ENSP00000496939.1 O15554

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152246
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
251434
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135898
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
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:
0.0000157
AC:
23
AN:
1461874
Hom.:
0
Cov.:
32
AF XY:
0.0000138
AC XY:
10
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.00
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:
0.0000189
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152246
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74386
show subpopulations
Gnomad4 AFR
AF:
0.00
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
Bravo
AF:
0.0000264
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

Dehydrated hereditary stomatocytosis 2 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCentogene AG - the Rare Disease CompanyApr 09, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.075
BayesDel_addAF
Benign
-0.033
T
BayesDel_noAF
Benign
-0.10
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.79
D;D;D
Eigen
Benign
0.13
Eigen_PC
Benign
-0.0062
FATHMM_MKL
Benign
0.24
N
LIST_S2
Benign
0.81
.;T;T
M_CAP
Uncertain
0.21
D
MetaRNN
Uncertain
0.43
T;T;T
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Benign
1.8
L;.;L
PrimateAI
Benign
0.39
T
PROVEAN
Uncertain
-3.0
.;.;D
REVEL
Uncertain
0.36
Sift
Benign
0.081
.;.;T
Sift4G
Uncertain
0.054
.;T;T
Polyphen
0.98
D;.;D
Vest4
0.40, 0.34
MVP
0.98
MPC
1.1
ClinPred
0.84
D
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.22
gMVP
0.26

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs141341073; hg19: chr19-44273636; API