rs1239862833

Variant names:

• chr2-151563906-C-G
• rs1239862833
• NM_001164507.2:c.18496G>C

Your query was ambiguous. Multiple possible variants found:

• chr2-151563906-C-G
• chr2-151563906-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001164508.2(NEB):​c.18496G>C​(p.Gly6166Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,458,212 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G6166S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: NEB NM_001164508.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.588
• Publications: 0 publications found

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]

NEB Gene-Disease associations (from GenCC):

• nemaline myopathy 2

  Inheritance: AR, AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: G2P, ClinGen, Myriad Women’s Health, Labcorp Genetics (formerly Invitae), Ambry Genetics
• autosomal dominant nebulin-related myopathy

  Inheritance: AD Classification: MODERATE Submitted by: ClinGen
• childhood-onset nemaline myopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• intermediate nemaline myopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• typical nemaline myopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• lethal multiple pterygium syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• severe congenital nemaline myopathy

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.18356097).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001164508.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NEB	NM_001164507.2	MANE Plus Clinical	c.18496G>C	p.Gly6166Arg	missense	Exon 118 of 182	NP_001157979.2	P20929-3
	NEB	NM_001164508.2	MANE Select	c.18496G>C	p.Gly6166Arg	missense	Exon 118 of 182	NP_001157980.2	P20929-2
	NEB	NM_001271208.2		c.18496G>C	p.Gly6166Arg	missense	Exon 118 of 183	NP_001258137.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NEB	ENST00000397345.8	TSL:5 MANE Select	c.18496G>C	p.Gly6166Arg	missense	Exon 118 of 182	ENSP00000380505.3	P20929-2
	NEB	ENST00000427231.7	TSL:5 MANE Plus Clinical	c.18496G>C	p.Gly6166Arg	missense	Exon 118 of 182	ENSP00000416578.2	P20929-3
	NEB	ENST00000409198.5	TSL:5	c.13393G>C	p.Gly4465Arg	missense	Exon 91 of 150	ENSP00000386259.1	P20929-4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000412 AC: 1 AN: 242558 AF XY: 0.00000761

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000297

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.86e-7 AC: 1 AN: 1458212 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 725132

African (AFR) AF: 0.00 AC: 0 AN: 33394

American (AMR) AF: 0.0000227 AC: 1 AN: 44068

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26026

East Asian (EAS) AF: 0.00 AC: 0 AN: 39494

South Asian (SAS) AF: 0.00 AC: 0 AN: 85700

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53286

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1110218

Other (OTH) AF: 0.00 AC: 0 AN: 60264

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.52
BayesDel_addAF	Benign	-0.10	T
BayesDel_noAF	Benign	-0.30
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.022	T
Eigen	Benign	-0.019
Eigen_PC	Benign	0.060
FATHMM_MKL	Benign	0.32	N
LIST_S2	Benign	0.55	T
M_CAP	Benign	0.028	D
MetaRNN	Benign	0.18	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.1	L
PhyloP100		0.59
PrimateAI	Uncertain	0.63	T
PROVEAN	Benign	-0.97	N
REVEL	Benign	0.16
Sift	Benign	0.22	T
Sift4G	Benign	0.18	T
Polyphen		0.11	B
Vest4		0.50
MutPred		0.37		Gain of MoRF binding (P = 0.0289)
MVP		0.47
MPC		0.17
ClinPred		0.77	D
GERP RS		5.7
Varity_R		0.12
gMVP		0.23
Mutation Taster		=96/4	polymorphism

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

Other links and lift over

dbSNP: rs1239862833; hg19: chr2-152420420;