rs112260335

Positions:

• chr2-151602576-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BP6_Very_Strong

The NM_001164508.2(NEB):​c.13368+11A>G 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 Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0 (0 hom., cov: 0)
  • Exomes 𝑓: 0.043 (7 hom.)
  • Failed GnomAD Quality Control
• Consequence: NEB NM_001164508.2 intron
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: -0.395

Genes affected

NEB (HGNC:7720): (nebulin) This gene encodes nebulin, a giant protein component of the cytoskeletal matrix that coexists with the thick and thin filaments within the sarcomeres of skeletal muscle. In most vertebrates, nebulin accounts for 3 to 4% of the total myofibrillar protein. The encoded protein contains approximately 30-amino acid long modules that can be classified into 7 types and other repeated modules. Protein isoform sizes vary from 600 to 800 kD due to alternative splicing that is tissue-, species-,and developmental stage-specific. Of the 183 exons in the nebulin gene, at least 43 are alternatively spliced, although exons 143 and 144 are not found in the same transcript. Of the several thousand transcript variants predicted for nebulin, the RefSeq Project has decided to create three representative RefSeq records. Mutations in this gene are associated with recessive nemaline myopathy. [provided by RefSeq, Sep 2009]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BP6: Variant 2-151602576-T-C is Benign according to our data. Variant chr2-151602576-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 227728.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-151602576-T-C is described in Lovd as [Benign]. Variant chr2-151602576-T-C is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NEB	NM_001164507.2	c.13368+11A>G		intron_variant		ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2	c.13368+11A>G		intron_variant		ENST00000397345.8	NP_001157980.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NEB	ENST00000397345.8	c.13368+11A>G		intron_variant		5	NM_001164508.2	ENSP00000380505.3
NEB	ENST00000427231.7	c.13368+11A>G		intron_variant		5	NM_001164507.2	ENSP00000416578.2
NEB	ENST00000409198.5	c.11601+7233A>G		intron_variant		5		ENSP00000386259.1

Frequencies

GnomAD3 genomes AF: 0.00 AC: 0 AN: 16 Hom.: 0 Cov.: 0 FAILED QC

Gnomad AFR AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad NFE AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.0426 AC: 15 AN: 352 Hom.: 7 Cov.: 0 AF XY: 0.0526 AC XY: 10 AN XY: 190

Gnomad4 AMR exome AF: 0.0769

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.184

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0405

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 16 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 4

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

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: 0.330 Hom.: 17

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:3

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 19, 2017	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. -
Likely benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Feb 04, 2015	NEB exons 82-105 are organized in three repetitive blocks of 8 exons each and be cause these blocks are nearly identical in sequence, homologous exons (e.g., exo ns 87, 95, and 103) are co-amplified and sequenced (each amplicon consists of 6 alleles). This variant represents a nonhomologous position within the three repe titive blocks (c.13368+11A, c.14826+11G, c.16284+11A). The variable alleles at t his position are not expected to have clinical significance because these positi ons are not located within the splice consensus sequence. -
Benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -

Nemaline myopathy 2 Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 01, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.15
DANN	Benign	0.46

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

Publications

LitVar

Other links and lift over

dbSNP: rs112260335; hg19: chr2-152459090;