dbSNP rs147245544: KCNJ5:p.Leu215Leu (chr11-128911918-G-A) – ACMG Classification: Benign (-21 pts)

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_000890.5(KCNJ5):c.645G>A(p.Leu215Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000468 in 1,603,918 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 Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. L215L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

KCNJ5
NM_000890.5 synonymous

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 1.40

Publications

0 publications found

Variant links:

Genes affected

KCNJ5 (HGNC:6266): (potassium inwardly rectifying channel subfamily J member 5) This gene encodes an integral membrane protein which belongs to one of seven subfamilies of inward-rectifier potassium channel proteins called potassium channel subfamily J. The encoded protein is a subunit of the potassium channel which is homotetrameric. It is controlled by G-proteins and has a greater tendency to allow potassium to flow into a cell rather than out of a cell. Naturally occurring mutations in this gene are associated with aldosterone-producing adenomas. [provided by RefSeq, Aug 2017]

KCNJ5 Gene-Disease associations (from GenCC):

familial hyperaldosteronism type III
Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, ClinGen, Labcorp Genetics (formerly Invitae)
Andersen-Tawil syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
long QT syndrome 13
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
long QT syndrome
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

KCNJ5 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.49).

BP6

Variant 11-128911918-G-A is Benign according to our data. Variant chr11-128911918-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 527073.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=1.4 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000197 (30/152210) while in subpopulation AFR AF = 0.000603 (25/41464). AF 95% confidence interval is 0.000419. There are 0 homozygotes in GnomAd4. There are 14 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 30 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000890.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KCNJ5	NM_000890.5	MANE Select	c.645G>A	p.Leu215Leu	synonymous	Exon 2 of 3	NP_000881.3
	KCNJ5	NM_001354169.2		c.645G>A	p.Leu215Leu	synonymous	Exon 3 of 4	NP_001341098.1	P48544

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KCNJ5	ENST00000529694.6	TSL:1 MANE Select	c.645G>A	p.Leu215Leu	synonymous	Exon 2 of 3	ENSP00000433295.1	P48544
KCNJ5	ENST00000338350.4	TSL:1	c.645G>A	p.Leu215Leu	synonymous	Exon 3 of 4	ENSP00000339960.4	P48544
KCNJ5	ENST00000533599.1	TSL:1	c.645G>A	p.Leu215Leu	synonymous	Exon 1 of 2	ENSP00000434266.1	P48544

Frequencies

GnomAD3 genomes

AF:

0.000197

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000603

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000955

GnomAD2 exomes

AF:

0.0000486

AC:

AN:

247114

AF XY:

0.0000300

show subpopulations

Gnomad AFR exome

AF:

0.000555

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000164

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000310

AC:

AN:

1451708

Hom.:

Cov.:

AF XY:

0.0000278

AC XY:

AN XY:

720320

show subpopulations

African (AFR)

AF:

0.000723

AC:

AN:

33186

American (AMR)

AF:

0.00

AC:

AN:

44284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25686

East Asian (EAS)

AF:

0.000431

AC:

AN:

39486

South Asian (SAS)

AF:

0.0000117

AC:

AN:

85290

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53178

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5724

European-Non Finnish (NFE)

AF:

0.00000181

AC:

AN:

1105016

Other (OTH)

AF:

0.0000167

AC:

AN:

59858

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000197

AC:

AN:

152210

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74346

show subpopulations

African (AFR)

AF:

0.000603

AC:

AN:

41464

American (AMR)

AF:

0.0000654

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000193

AC:

AN:

5192

South Asian (SAS)

AF:

0.000208

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68044

Other (OTH)

AF:

0.000955

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.522

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000986

Hom.:

Bravo

AF:

0.000174

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Cardiovascular phenotype (1)

KCNJ5-related disorder (1)

Long QT syndrome (1)

Long QT syndrome 13;C3838758:Familial hyperaldosteronism type III (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.49

CADD

Benign

7.4

(source)

DANN

Benign

0.76

PhyloP100

1.4

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over