21-34512181-G-C

Variant names:

• chr21-34512181-G-C
• rs41315473
• ENST00000684114.1:n.*15C>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The ENST00000684114.1(ENSG00000288711):​n.*15C>G variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: 32)
• Consequence: ENSG00000288711 ENST00000684114.1 non_coding_transcript_exon
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.672
• Publications: 0 publications found

Genes affected

ENSG00000288711 (HGNC:):

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: ClinGen, G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• Jervell and Lange-Nielsen syndrome 2

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, PanelApp Australia
• 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 -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KCNE1	NM_000219.6	c.-531C>G		5_prime_UTR_variant	Exon 1 of 4	ENST00000399286.3	NP_000210.2
KCNE1	XM_047440764.1	c.-494C>G		5_prime_UTR_variant	Exon 1 of 4		XP_047296720.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ENSG00000288711	ENST00000684114.1	n.*15C>G		non_coding_transcript_exon_variant	Exon 4 of 5			ENSP00000507841.1
KCNE1	ENST00000399286.3	c.-531C>G		5_prime_UTR_variant	Exon 1 of 4	1	NM_000219.6	ENSP00000382226.2
ENSG00000288711	ENST00000684114.1	n.*15C>G		3_prime_UTR_variant	Exon 4 of 5			ENSP00000507841.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 0

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	0.80
DANN	Benign	0.54
PhyloP100		-0.67
PromoterAI		-0.027	Neutral

Splicing

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

Other links and lift over

dbSNP: rs41315473; hg19: chr21-35884479;