rs2247810

Positions:

• chr21-34467101-C-T
• chr21-34467101-C-A
• chr21-34467101-C-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_000219.6(KCNE1):​c.-161-8337G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 0)
• Consequence: KCNE1 NM_000219.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.471

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]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KCNE1	NM_000219.6	c.-161-8337G>A		intron_variant		ENST00000399286.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KCNE1	ENST00000399286.3	c.-161-8337G>A		intron_variant		1	NM_000219.6	P1
KCNE1	ENST00000337385.7	c.-161-8337G>A		intron_variant		3		P1
KCNE1	ENST00000399284.1	c.-133-8365G>A		intron_variant		2		P1
KCNE1	ENST00000611936.1	c.-50-17417G>A		intron_variant		4		P1

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: 0.634 Hom.: 58324

Asia WGS AF: 0.728 AC: 2532 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	6.5
DANN	Benign	0.61

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs2247810; hg19: chr21-35839399;