6-73133485-C-G

Position:

chr6-73133485-C-G

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PP2PP3BP6BS1BS2

The NM_019842.4(KCNQ5):c.1312C>G(p.Arg438Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000929 in 1,614,020 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

KCNQ5
NM_019842.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 1.95

Variant links:

Genes affected

KCNQ5 (HGNC:6299): (potassium voltage-gated channel subfamily Q member 5) This gene is a member of the KCNQ potassium channel gene family that is differentially expressed in subregions of the brain and in skeletal muscle. The protein encoded by this gene yields currents that activate slowly with depolarization and can form heteromeric channels with the protein encoded by the KCNQ3 gene. Currents expressed from this protein have voltage dependences and inhibitor sensitivities in common with M-currents. They are also inhibited by M1 muscarinic receptor activation. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2009]

KCNQ5 links:

KCNQ5-AS1 (HGNC:):

KCNQ5-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), KCNQ5. . Gene score misZ 3.3177 (greater than the threshold 3.09). Trascript score misZ 3.1292 (greater than threshold 3.09). GenCC has associacion of gene with autosomal dominant non-syndromic intellectual disability, intellectual disability, autosomal dominant 46.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.781

BP6

Variant 6-73133485-C-G is Benign according to our data. Variant chr6-73133485-C-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 977441.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1}.

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.0000329 (5/152134) while in subpopulation AMR AF= 0.000262 (4/15272). AF 95% confidence interval is 0.0000888. There are 0 homozygotes in gnomad4. There are 3 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KCNQ5	NM_019842.4 linkuse as main transcript	c.1312C>G	p.Arg438Gly	missense_variant	10/14	ENST00000370398.6	NP_062816.2	Q9NR82-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KCNQ5	ENST00000370398.6 linkuse as main transcript	c.1312C>G	p.Arg438Gly	missense_variant	10/14	1	NM_019842.4	ENSP00000359425.1		Q9NR82-1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152134

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000478

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251336

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135844

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461886

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000809

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152134

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74300

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000262

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:

0.000478

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000907

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 21, 2024

The c.1369C>G (p.R457G) alteration is located in exon 11 (coding exon 11) of the KCNQ5 gene. This alteration results from a C to G substitution at nucleotide position 1369, causing the arginine (R) at amino acid position 457 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Intellectual disability, autosomal dominant 46

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

New York Genome Center

Feb 02, 2022

- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 12, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.81

BayesDel_addAF

Pathogenic

0.43

BayesDel_noAF

Pathogenic

0.44

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.35

.;.;.;T;.;T;.

Eigen

Benign

0.070

Eigen_PC

Benign

0.17

FATHMM_MKL

Uncertain

0.85

LIST_S2

Pathogenic

0.98

D;D;D;D;D;D;D

M_CAP

Pathogenic

0.68

MetaRNN

Pathogenic

0.78

D;D;D;D;D;D;D

MetaSVM

Pathogenic

1.0

MutationAssessor

Uncertain

2.4

.;.;.;.;.;M;.

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-2.9

D;D;D;D;.;D;.

REVEL

Pathogenic

0.73

Sift

Uncertain

0.013

D;D;D;D;.;D;.

Sift4G

Uncertain

0.049

D;D;D;D;D;D;D

Polyphen

0.88, 0.93

.;.;.;.;.;P;P

Vest4

0.89

MutPred

0.36

Loss of MoRF binding (P = 0.0276);.;.;.;Loss of MoRF binding (P = 0.0276);.;.;

MVP

0.98

MPC

1.3

ClinPred

0.91

GERP RS

4.5

Varity_R

0.48

gMVP

0.73

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over