rs200637566

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001164508.2(NEB):​c.3443C>T​(p.Ala1148Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000132 in 1,613,882 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1148E) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

NEB
NM_001164508.2 missense

Scores

3
15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:1

Conservation

PhyloP100: 0.989

Publications

3 publications found
Variant links:
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, Ambry Genetics, Labcorp Genetics (formerly Invitae), Myriad Women’s Health, ClinGen
  • 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.04457292).

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.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NEB
NM_001164507.2
MANE Plus Clinical
c.3443C>Tp.Ala1148Val
missense
Exon 33 of 182NP_001157979.2P20929-3
NEB
NM_001164508.2
MANE Select
c.3443C>Tp.Ala1148Val
missense
Exon 33 of 182NP_001157980.2P20929-2
NEB
NM_001271208.2
c.3443C>Tp.Ala1148Val
missense
Exon 33 of 183NP_001258137.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NEB
ENST00000397345.8
TSL:5 MANE Select
c.3443C>Tp.Ala1148Val
missense
Exon 33 of 182ENSP00000380505.3P20929-2
NEB
ENST00000427231.7
TSL:5 MANE Plus Clinical
c.3443C>Tp.Ala1148Val
missense
Exon 33 of 182ENSP00000416578.2P20929-3
NEB
ENST00000409198.5
TSL:5
c.3443C>Tp.Ala1148Val
missense
Exon 33 of 150ENSP00000386259.1P20929-4

Frequencies

GnomAD3 genomes
AF:
0.000217
AC:
33
AN:
152106
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000411
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000962
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.0000944
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000958
GnomAD2 exomes
AF:
0.000265
AC:
66
AN:
249056
AF XY:
0.000281
show subpopulations
Gnomad AFR exome
AF:
0.000646
Gnomad AMR exome
AF:
0.0000580
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00195
Gnomad FIN exome
AF:
0.0000928
Gnomad NFE exome
AF:
0.0000797
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.000123
AC:
180
AN:
1461658
Hom.:
0
Cov.:
31
AF XY:
0.000116
AC XY:
84
AN XY:
727112
show subpopulations
African (AFR)
AF:
0.000806
AC:
27
AN:
33480
American (AMR)
AF:
0.0000671
AC:
3
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00134
AC:
53
AN:
39700
South Asian (SAS)
AF:
0.000104
AC:
9
AN:
86254
European-Finnish (FIN)
AF:
0.000206
AC:
11
AN:
53398
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000612
AC:
68
AN:
1111828
Other (OTH)
AF:
0.000133
AC:
8
AN:
60372
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
10
20
31
41
51
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000217
AC:
33
AN:
152224
Hom.:
0
Cov.:
32
AF XY:
0.000215
AC XY:
16
AN XY:
74426
show subpopulations
African (AFR)
AF:
0.000409
AC:
17
AN:
41530
American (AMR)
AF:
0.000262
AC:
4
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000964
AC:
5
AN:
5188
South Asian (SAS)
AF:
0.000415
AC:
2
AN:
4820
European-Finnish (FIN)
AF:
0.0000944
AC:
1
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68018
Other (OTH)
AF:
0.000948
AC:
2
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000277
Hom.:
1
Bravo
AF:
0.000314
ESP6500AA
AF:
0.000251
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000289
AC:
35
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
1
Nemaline myopathy 2 (3)
-
2
-
not provided (2)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.039
T
Eigen
Benign
-0.029
Eigen_PC
Benign
0.0054
FATHMM_MKL
Benign
0.42
N
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.045
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.0
M
PhyloP100
0.99
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-1.7
N
REVEL
Benign
0.048
Sift
Benign
0.48
T
Sift4G
Benign
0.13
T
Polyphen
0.66
P
Vest4
0.63
MVP
0.48
MPC
0.25
ClinPred
0.023
T
GERP RS
4.3
Varity_R
0.071
gMVP
0.36
Mutation Taster
=77/23
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

Publications

Other links and lift over

dbSNP: rs200637566; hg19: chr2-152534514; API