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rs375737637

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_004977.3(KCNC3):c.1940C>T(p.Pro647Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000387 in 1,548,434 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 Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. P647P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000041 ( 0 hom. )

Consequence

KCNC3
NM_004977.3 missense

Scores

4
9
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.98
Variant links:
Genes affected
KCNC3 (HGNC:6235): (potassium voltage-gated channel subfamily C member 3) The Shaker gene family of Drosophila encodes components of voltage-gated potassium channels and is comprised of four subfamilies. Based on sequence similarity, this gene is similar to one of these subfamilies, namely the Shaw subfamily. The protein encoded by this gene belongs to the delayed rectifier class of channel proteins and is an integral membrane protein that mediates the voltage-dependent potassium ion permeability of excitable membranes. Alternate splicing results in several transcript variants. [provided by RefSeq, Mar 2014]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.42037913).
BS2
High AC in GnomAdExome at 8 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KCNC3NM_004977.3 linkuse as main transcriptc.1940C>T p.Pro647Leu missense_variant 2/5 ENST00000477616.2
KCNC3NM_001372305.1 linkuse as main transcriptc.1712C>T p.Pro571Leu missense_variant 2/5
KCNC3NR_110912.2 linkuse as main transcriptn.69-2229C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KCNC3ENST00000477616.2 linkuse as main transcriptc.1940C>T p.Pro647Leu missense_variant 2/51 NM_004977.3
KCNC3ENST00000670667.1 linkuse as main transcriptc.1940C>T p.Pro647Leu missense_variant 2/4 P3
KCNC3ENST00000376959.6 linkuse as main transcriptc.1940C>T p.Pro647Leu missense_variant 2/55 A2
KCNC3ENST00000474951.1 linkuse as main transcriptc.-74-2229C>T intron_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152136
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:
0.000620
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000546
AC:
8
AN:
146510
Hom.:
0
AF XY:
0.0000507
AC XY:
4
AN XY:
78926
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000357
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000408
AC:
57
AN:
1396298
Hom.:
0
Cov.:
33
AF XY:
0.0000523
AC XY:
36
AN XY:
688670
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000280
Gnomad4 SAS exome
AF:
0.000506
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000121
Gnomad4 OTH exome
AF:
0.0000346
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152136
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74304
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:
0.000620
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000866
AC:
8
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoJan 05, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.44
BayesDel_addAF
Benign
-0.0028
T
BayesDel_noAF
Uncertain
0.070
Cadd
Pathogenic
28
Dann
Uncertain
1.0
DEOGEN2
Benign
0.27
T;T
Eigen
Uncertain
0.28
Eigen_PC
Uncertain
0.22
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Pathogenic
0.98
D;D
M_CAP
Pathogenic
0.76
D
MetaRNN
Benign
0.42
T;T
MetaSVM
Pathogenic
0.86
D
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.87
D
PROVEAN
Uncertain
-4.1
D;D
REVEL
Uncertain
0.58
Sift
Uncertain
0.0020
D;D
Sift4G
Benign
0.18
T;T
Polyphen
1.0
D;D
Vest4
0.27
MutPred
0.27
Loss of helix (P = 0.028);Loss of helix (P = 0.028);
MVP
0.87
ClinPred
0.60
D
GERP RS
3.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.19
gMVP
0.52

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: rs375737637; hg19: chr19-50826270; COSMIC: COSV104689126; API