rs1225381477

Variant names:

• chr2-151678091-C-A
• rs1225381477
• NM_001164507.2:c.3352G>T

Your query was ambiguous. Multiple possible variants found:

• chr2-151678091-C-A
• chr2-151678091-C-T

Variant summary

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

The NM_001164507.2(NEB):​c.3352G>T​(p.Ala1118Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: NEB NM_001164507.2 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 7.91
• 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: ClinGen, Labcorp Genetics (formerly Invitae), Myriad Women’s Health, G2P, Ambry Genetics
• 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 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEB	NM_001164507.2	c.3352G>T	p.Ala1118Ser	missense_variant	Exon 33 of 182	ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2	c.3352G>T	p.Ala1118Ser	missense_variant	Exon 33 of 182	ENST00000397345.8	NP_001157980.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NEB	ENST00000397345.8	c.3352G>T	p.Ala1118Ser	missense_variant	Exon 33 of 182	5	NM_001164508.2	ENSP00000380505.3
NEB	ENST00000427231.7	c.3352G>T	p.Ala1118Ser	missense_variant	Exon 33 of 182	5	NM_001164507.2	ENSP00000416578.2
NEB	ENST00000409198.5	c.3352G>T	p.Ala1118Ser	missense_variant	Exon 33 of 150	5		ENSP00000386259.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

Nemaline myopathy 2 Uncertain:1

Jan 08, 2018

Counsyl

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Benign	-0.056	T
BayesDel_noAF	Benign	-0.32
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.039	.;.;T;.;T;.;.
Eigen	Pathogenic	0.70
Eigen_PC	Pathogenic	0.71
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.95	D;D;D;D;D;.;.
M_CAP	Benign	0.021	T
MetaRNN	Uncertain	0.62	D;D;D;D;D;D;D
MetaSVM	Benign	-0.82	T
MutationAssessor	Benign	1.9	L;L;.;L;L;L;L
PhyloP100		7.9
PrimateAI	Uncertain	0.67	T
PROVEAN	Benign	-1.2	N;N;.;N;N;.;.
REVEL	Benign	0.28
Sift	Benign	0.13	T;T;.;T;T;.;.
Sift4G	Uncertain	0.043	D;D;D;D;D;D;D
Polyphen		1.0	.;.;.;.;D;.;.
Vest4		0.68
MutPred		0.73		Gain of disorder (P = 0.0172);Gain of disorder (P = 0.0172);Gain of disorder (P = 0.0172);Gain of disorder (P = 0.0172);Gain of disorder (P = 0.0172);Gain of disorder (P = 0.0172);Gain of disorder (P = 0.0172);
MVP		0.53
MPC		0.28
ClinPred		0.97	D
GERP RS		5.6
Varity_R		0.24
gMVP		0.21
Mutation Taster		=78/22	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: rs1225381477; hg19: chr2-152534605;