rs201822024

chr10-20813933-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP6

The NM_006393.3(NEBL):c.2346+6G>A variant causes a splice donor region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000104 in 1,544,954 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.000059 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00011 (1 hom.)
• Consequence: NEBL NM_006393.3 splice_donor_region, intron
• Scores: Splicing: ADA: 0.00008850
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:2
• Conservation: PhyloP100: 1.42

Genes affected

NEBL (HGNC:16932): (nebulette) This gene encodes a nebulin like protein that is abundantly expressed in cardiac muscle. The encoded protein binds actin and interacts with thin filaments and Z-line associated proteins in striated muscle. This protein may be involved in cardiac myofibril assembly. A shorter isoform of this protein termed LIM nebulette is expressed in non-muscle cells and may function as a component of focal adhesion complexes. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Mar 2010]

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.6).
• BP6: Variant 10-20813933-C-T is Benign according to our data. Variant chr10-20813933-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 164743.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=2}. Variant chr10-20813933-C-T is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NEBL	NM_006393.3	c.2346+6G>A		splice_donor_region_variant, intron_variant		ENST00000377122.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NEBL	ENST00000377122.9	c.2346+6G>A		splice_donor_region_variant, intron_variant		1	NM_006393.3

Frequencies

GnomAD3 genomes AF: 0.0000592 AC: 9 AN: 152104 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000525

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000570 AC: 143 AN: 251014 Hom.: 1 AF XY: 0.000420 AC XY: 57 AN XY: 135688

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00408

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000328

GnomAD4 exome AF: 0.000109 AC: 152 AN: 1392732 Hom.: 1 Cov.: 26 AF XY: 0.0000789 AC XY: 55 AN XY: 696790

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00334

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000118

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.53e-7

Gnomad4 OTH exome AF: 0.0000172

GnomAD4 genome AF: 0.0000591 AC: 9 AN: 152222 Hom.: 0 Cov.: 32 AF XY: 0.0000806 AC XY: 6 AN XY: 74436

Gnomad4 AFR AF: 0.0000241

Gnomad4 AMR AF: 0.000524

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.000298

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:2

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not specified Uncertain:1 Benign:1

Benign, criteria provided, single submitter	clinical testing	GeneDx	Apr 16, 2015	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Uncertain significance, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Jan 22, 2014	The 2346+6G>A variant in NEBL has not been previously reported in individuals wi th cardiomyopathy, but has been identified in 1/128 Mexican chromosomes by the 1 000 Genomes Project (dbSNP rs201822024). This variant is located in the 5' splic e region. Computational tools do not suggest an impact to splicing, though this information is not predictive enough to rule out pathogenicity. Additional infor mation is needed to fully assess the clinical significance of this variant. -

Primary dilated cardiomyopathy Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 10, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.60
Cadd	Benign	14
Dann	Benign	0.70

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000089
dbscSNV1_RF	Benign	0.014
SpliceAI score (max)		0.080		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs201822024; hg19: chr10-21102862;