rs7275915

Variant names:

• chr21-34459330-A-T
• rs7275915
• NM_000219.6:c.-161-566T>A

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Strong BP6_Moderate

The NM_000219.6(KCNE1):​c.-161-566T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: not found (cov: 0)
• Consequence: KCNE1 NM_000219.6 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.229
• Publications: 0 publications found

Genes affected

KCNE1 (HGNC:6240): (potassium voltage-gated channel subfamily E regulatory subunit 1) The product of this gene belongs to the potassium channel KCNE family. Potassium ion channels are essential to many cellular functions and show a high degree of diversity, varying in their electrophysiologic and pharmacologic properties. This gene encodes a transmembrane protein known to associate with the product of the KVLQT1 gene to form the delayed rectifier potassium channel. Mutation in this gene are associated with both Jervell and Lange-Nielsen and Romano-Ward forms of long-QT syndrome. Alternatively spliced transcript variants encoding the same protein have been identified. [provided by RefSeq, Jul 2008]

KCNE1 Gene-Disease associations (from GenCC):

• long QT syndrome 5

  Inheritance: AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: G2P, ClinGen, Labcorp Genetics (formerly Invitae), Ambry Genetics
• Jervell and Lange-Nielsen syndrome 2

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
• Jervell and Lange-Nielsen syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• atrial fibrillation

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BP6: Variant 21-34459330-A-T is Benign according to our data. Variant chr21-34459330-A-T is described in ClinVar as Benign. ClinVar VariationId is 1298022.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000219.6. 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
	KCNE1	NM_000219.6	MANE Select	c.-161-566T>A		intron	N/A	NP_000210.2	P15382
	KCNE1	NM_001127668.4		c.-162+199T>A		intron	N/A	NP_001121140.1	P15382
	KCNE1	NM_001127669.4		c.-134+199T>A		intron	N/A	NP_001121141.1	C7S316

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KCNE1	ENST00000399286.3	TSL:1 MANE Select	c.-161-566T>A		intron	N/A	ENSP00000382226.2	P15382
	KCNE1	ENST00000399289.7	TSL:1	c.-134+199T>A		intron	N/A	ENSP00000382228.3	P15382
	KCNE1	ENST00000432085.5	TSL:1	c.-162+199T>A		intron	N/A	ENSP00000412498.1	P15382

Frequencies

GnomAD3 genomes Cov.: 0

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 0

Alfa AF: 0.183 Hom.: 116

Asia WGS AF: 0.146 AC: 506 AN: 3478

ClinVar

ClinVar submissions

Significance: Benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	5.8
DANN	Benign	0.71
PhyloP100		-0.23
PromoterAI		-0.033	Neutral
Mutation Taster		=100/0	polymorphism (auto)

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs7275915;

hg19: chr21-35831628;