2-151527001-C-T

Variant names:

• chr2-151527001-C-T
• rs768693028
• NM_001164507.2:c.21862G>A

Variant summary

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

The NM_001164508.2(NEB):​c.21862G>A​(p.Glu7288Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000968 in 1,446,946 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E7288G) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000097 (0 hom.)
• Consequence: NEB NM_001164508.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.62
• 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]

RIF1 (HGNC:23207): (replication timing regulatory factor 1) This gene encodes a protein that shares homology with the yeast teleomere binding protein, Rap1 interacting factor 1. This protein localizes to aberrant telomeres may be involved in DNA repair. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Apr 2010]

ACMG classification

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

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.21862G>A	p.Glu7288Lys	missense	Exon 148 of 182	NP_001157979.2	P20929-3
	NEB	NM_001164508.2	MANE Select	c.21862G>A	p.Glu7288Lys	missense	Exon 148 of 182	NP_001157980.2	P20929-2
	NEB	NM_001271208.2		c.21967G>A	p.Glu7323Lys	missense	Exon 149 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.21862G>A	p.Glu7288Lys	missense	Exon 148 of 182	ENSP00000380505.3	P20929-2
	NEB	ENST00000427231.7	TSL:5 MANE Plus Clinical	c.21862G>A	p.Glu7288Lys	missense	Exon 148 of 182	ENSP00000416578.2	P20929-3
	NEB	ENST00000409198.5	TSL:5	c.16759G>A	p.Glu5587Lys	missense	Exon 121 of 150	ENSP00000386259.1	P20929-4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00 AC: 0 AN: 226240 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

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: 0.00000968 AC: 14 AN: 1446946 Hom.: 0 Cov.: 30 AF XY: 0.0000125 AC XY: 9 AN XY: 718058

African (AFR) AF: 0.00 AC: 0 AN: 33328

American (AMR) AF: 0.00 AC: 0 AN: 43150

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25774

East Asian (EAS) AF: 0.00 AC: 0 AN: 39350

South Asian (SAS) AF: 0.00 AC: 0 AN: 83622

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52672

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5750

European-Non Finnish (NFE) AF: 0.0000118 AC: 13 AN: 1103508

Other (OTH) AF: 0.0000167 AC: 1 AN: 59792

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000829 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Nemaline myopathy 2 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.51
BayesDel_addAF	Uncertain	0.081	D
BayesDel_noAF	Benign	-0.12
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.030	T
Eigen	Pathogenic	0.84
Eigen_PC	Pathogenic	0.86
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.021	T
MetaRNN	Uncertain	0.71	D
MetaSVM	Benign	-0.86	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		7.6
PrimateAI	Pathogenic	0.81	D
PROVEAN	Benign	-1.7	N
REVEL	Uncertain	0.33
Sift	Uncertain	0.010	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.59
MVP		0.71
MPC		0.36
ClinPred		0.99	D
GERP RS		6.0
Varity_R		0.43
gMVP		0.50
Mutation Taster		=87/13	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: rs768693028; hg19: chr2-152383515; COSMIC: COSV99419218; COSMIC: COSV99419218;