3-47002750-TG-TGG

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1PM2PP5

The ENST00000450053.8(NBEAL2):​c.5413dupG​(p.Ala1805GlyfsTer59) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000288 in 1,387,934 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000029 ( 0 hom. )

Consequence

NBEAL2
ENST00000450053.8 frameshift

Scores

Not classified

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 7.53

Publications

3 publications found
Variant links:
Genes affected
NBEAL2 (HGNC:31928): (neurobeachin like 2) The protein encoded by this gene contains a beige and Chediak-Higashi (BEACH) domain and multiple WD40 domains, and may play a role in megakaryocyte alpha-granule biogenesis. Mutations in this gene are a cause of gray platelet syndrome. [provided by RefSeq, Dec 2011]
NBEAL2 Gene-Disease associations (from GenCC):
  • gray platelet syndrome
    Inheritance: AR, AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 11 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 3-47002750-T-TG is Pathogenic according to our data. Variant chr3-47002750-T-TG is described in ClinVar as Pathogenic. ClinVar VariationId is 31122.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000450053.8. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NBEAL2
NM_015175.3
MANE Select
c.5413dupGp.Ala1805GlyfsTer59
frameshift
Exon 33 of 54NP_055990.1
NBEAL2
NM_001365116.2
c.5311dupGp.Ala1771GlyfsTer59
frameshift
Exon 32 of 53NP_001352045.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NBEAL2
ENST00000450053.8
TSL:2 MANE Select
c.5413dupGp.Ala1805GlyfsTer59
frameshift
Exon 33 of 54ENSP00000415034.2
NBEAL2
ENST00000416683.5
TSL:1
c.3274dupGp.Ala1092fs
frameshift
Exon 19 of 40ENSP00000410405.1
NBEAL2
ENST00000443829.5
TSL:1
c.517dupGp.Ala173fs
frameshift
Exon 3 of 23ENSP00000414560.1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.0000107
AC:
2
AN:
186074
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.000102
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:
0.0000122
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000288
AC:
4
AN:
1387934
Hom.:
0
Cov.:
66
AF XY:
0.00000436
AC XY:
3
AN XY:
688150
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31852
American (AMR)
AF:
0.00
AC:
0
AN:
38710
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24068
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35124
South Asian (SAS)
AF:
0.0000242
AC:
2
AN:
82644
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40040
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5054
European-Non Finnish (NFE)
AF:
0.00000186
AC:
2
AN:
1073896
Other (OTH)
AF:
0.00
AC:
0
AN:
56546
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

ClinVar submissions as Germline

Significance:Pathogenic
Revision:no assertion criteria provided
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
-
-
Gray platelet syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
PhyloP100
7.5
Mutation Taster
=0/200
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs794726683; hg19: chr3-47044240; API