Genetic Variant NM_000525.4:c.36C>T (chr11-17388056-G-A) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP6_ModerateBP7

The NM_000525.4(KCNJ11):c.36C>T(p.Tyr12Tyr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000822 in 1,460,056 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

KCNJ11
NM_000525.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: -1.21

Publications

11 publications found

Variant links:

Genes affected

KCNJ11 (HGNC:6257): (potassium inwardly rectifying channel subfamily J member 11) Potassium channels are present in most mammalian cells, where they participate in a wide range of physiologic responses. The protein encoded by this gene is an integral membrane protein and inward-rectifier type potassium channel. The encoded protein, which has a greater tendency to allow potassium to flow into a cell rather than out of a cell, is controlled by G-proteins and is found associated with the sulfonylurea receptor SUR. Mutations in this gene are a cause of familial persistent hyperinsulinemic hypoglycemia of infancy (PHHI), an autosomal recessive disorder characterized by unregulated insulin secretion. Defects in this gene may also contribute to autosomal dominant non-insulin-dependent diabetes mellitus type II (NIDDM), transient neonatal diabetes mellitus type 3 (TNDM3), and permanent neonatal diabetes mellitus (PNDM). Multiple alternatively spliced transcript variants that encode different protein isoforms have been described for this gene. [provided by RefSeq, Oct 2009]

KCNJ11 Gene-Disease associations (from GenCC):

diabetes mellitus, transient neonatal, 3
Inheritance: AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
monogenic diabetes
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
hyperinsulinemic hypoglycemia, familial, 2
Inheritance: AR, AD Classification: DEFINITIVE, STRONG Submitted by: Myriad Women’s Health, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics, Genomics England PanelApp
diabetes mellitus, noninsulin-dependent
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
diabetes mellitus, permanent neonatal 2
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
maturity-onset diabetes of the young type 13
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
autosomal dominant hyperinsulinism due to Kir6.2 deficiency
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
DEND syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
intermediate DEND syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
maturity-onset diabetes of the young
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
permanent neonatal diabetes mellitus
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
transient neonatal diabetes mellitus
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
autosomal recessive hyperinsulinism due to Kir6.2 deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
diazoxide-resistant focal hyperinsulinism due to Kir6.2 deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

KCNJ11 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP6

Variant 11-17388056-G-A is Benign according to our data. Variant chr11-17388056-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 752205.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-1.21 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000525.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KCNJ11	NM_000525.4	MANE Select	c.36C>T	p.Tyr12Tyr	synonymous	Exon 1 of 1	NP_000516.3
KCNJ11	NM_001377296.1		c.-55C>T		5_prime_UTR_premature_start_codon_gain	Exon 2 of 3	NP_001364225.1	A0A804HHV7
KCNJ11	NM_001377296.1		c.-55C>T		5_prime_UTR	Exon 2 of 3	NP_001364225.1	A0A804HHV7

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KCNJ11	ENST00000339994.5	TSL:6 MANE Select	c.36C>T	p.Tyr12Tyr	synonymous	Exon 1 of 1	ENSP00000345708.4	Q14654-1
KCNJ11	ENST00000528731.1	TSL:1	c.-16-210C>T		intron	N/A	ENSP00000434755.1	Q14654-2
KCNJ11	ENST00000526912.1	TSL:3	c.-55C>T		5_prime_UTR_premature_start_codon_gain	Exon 2 of 3	ENSP00000432729.1	E9PPF1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000120

AC:

AN:

249542

AF XY:

0.0000148

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000265

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000822

AC:

AN:

1460056

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

726454

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51712

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000809

AC:

AN:

1111924

Other (OTH)

AF:

0.0000166

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

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

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Permanent neonatal diabetes mellitus (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.66

CADD

Benign

4.1

(source)

DANN

Benign

0.88

PhyloP100

-1.2

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over