rs727503339

Variant names:

• chr10-20961789-A-C
• rs727503339
• ENST00000417816.2:c.250-10T>G

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_Strong BS2

The ENST00000417816.2(NEBL):​c.250-10T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000104 in 1,448,932 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000010 (0 hom.)
• Consequence: NEBL ENST00000417816.2 intron
• Scores: Splicing: ADA: 0.00001206
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.857
• Publications: 0 publications found

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]

NEBL Gene-Disease associations (from GenCC):

• dilated cardiomyopathy

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Benign. The variant received -8 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BS2: High AC in GnomAdExome4 at 15 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEBL	NM_001377322.1	c.250-10T>G		intron_variant	Intron 3 of 7		NP_001364251.1
NEBL	NM_213569.2	c.250-10T>G		intron_variant	Intron 3 of 6		NP_998734.1
NEBL	NM_001377323.1	c.202-10T>G		intron_variant	Intron 3 of 6		NP_001364252.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NEBL	ENST00000417816.2	c.250-10T>G		intron_variant	Intron 3 of 6	1		ENSP00000393896.2
NEBL	ENST00000674777.1	n.64-10T>G		intron_variant	Intron 1 of 1
NEBL	ENST00000675114.1	n.458-10T>G		intron_variant	Intron 5 of 8

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.0000104 AC: 15 AN: 1448932 Hom.: 0 Cov.: 27 AF XY: 0.00000970 AC XY: 7 AN XY: 721740

African (AFR) AF: 0.00 AC: 0 AN: 33170

American (AMR) AF: 0.00 AC: 0 AN: 44694

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26052

East Asian (EAS) AF: 0.00 AC: 0 AN: 39604

South Asian (SAS) AF: 0.00 AC: 0 AN: 86004

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53086

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5714

European-Non Finnish (NFE) AF: 0.0000136 AC: 15 AN: 1100656

Other (OTH) AF: 0.00 AC: 0 AN: 59952

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Oct 02, 2014

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.250-10T>G variant in NEBL has not been previously reported in individuals with cardiomyopathy or in large population studies. This variant is located in t he 3' splice region. Computational tools do not suggest an impact to splicing. H owever, this information is not predictive enough to rule out pathogenicity. In summary, the clinical significance of the c.250-10T>G variant is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	3.4
DANN	Benign	0.47
PhyloP100		-0.86

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000012
dbscSNV1_RF	Benign	0.0
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs727503339; hg19: chr10-21250718;