rs576918934

Variant names:

• chr2-151604849-C-A
• rs576918934
• NM_001164507.2:c.12770G>T

Your query was ambiguous. Multiple possible variants found:

• chr2-151604849-C-A
• chr2-151604849-C-T

Variant summary

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

The NM_001164507.2(NEB):​c.12770G>T​(p.Arg4257Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. 12/18 in silico tools predict 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. R4257H) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 8)
• Consequence: NEB NM_001164507.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.25
• Publications: 3 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 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEB	NM_001164507.2	c.12770G>T	p.Arg4257Leu	missense_variant	Exon 85 of 182	ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2	c.12770G>T	p.Arg4257Leu	missense_variant	Exon 85 of 182	ENST00000397345.8	NP_001157980.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NEB	ENST00000397345.8	c.12770G>T	p.Arg4257Leu	missense_variant	Exon 85 of 182	5	NM_001164508.2	ENSP00000380505.3
NEB	ENST00000427231.7	c.12770G>T	p.Arg4257Leu	missense_variant	Exon 85 of 182	5	NM_001164507.2	ENSP00000416578.2
NEB	ENST00000409198.5	c.11601+4960G>T		intron_variant	Intron 78 of 149	5		ENSP00000386259.1

Frequencies

GnomAD3 genomes Cov.: 8

GnomAD4 exome Cov.: 5

GnomAD4 genome Cov.: 8

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	0.0019	T
BayesDel_noAF	Benign	-0.24
CADD	Benign	21
DANN	Benign	0.94
DEOGEN2	Benign	0.030	.;T;.;.;.
Eigen	Benign	-0.12
Eigen_PC	Benign	-0.085
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.89	D;D;D;.;.
M_CAP	Benign	0.032	D
MetaRNN	Uncertain	0.48	T;T;T;T;T
MetaSVM	Benign	-0.96	T
PhyloP100		3.3
PROVEAN	Benign	-1.8	N;.;N;.;.
REVEL	Benign	0.22
Sift	Benign	0.065	T;.;T;.;.
Sift4G	Uncertain	0.0030	D;D;D;D;D
Vest4		0.52
MutPred		0.61		Loss of MoRF binding (P = 0.0284);Loss of MoRF binding (P = 0.0284);Loss of MoRF binding (P = 0.0284);Loss of MoRF binding (P = 0.0284);Loss of MoRF binding (P = 0.0284);
MVP		0.63
MPC		0.25
ClinPred		0.60	D
GERP RS		3.2
gMVP		0.0035
Mutation Taster		=92/8	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: rs576918934; hg19: chr2-152461363;