rs121918450

Variant summary

Our verdict is Pathogenic. The variant received 8 ACMG points: 8P and 0B. PP4_StrongPVS1_Strong

This summary comes from the ClinGen Evidence Repository: The NM_000212.2:c.2248C>T variant is a nonsense variant that results in premature termination of translation; however, NMD is not predicted. The variant is reported at a frequency of 0.0006008 in gnomAD v2.1.1 in the African population and does not meet PM2 or BS1 (PM2 threshold: <0.0001; BS1 threshold >0.00158). The variant is observed in one homozygous and 3 compound heterozygous individuals in the literature and from internal laboratory data (PMID:20106508, 9351872, 30138987); however, evidence from the in-trans variatns is not applicable as Arg750Ter does not meet PM2. Functional evidence from PMID:9351872 shows that the variant-expressing CHO cells bind fibrinogen but fail to spread on fibrinogen-coated surface. In summary, the Arg750Ter variant is classified as pathogenic. GT-specific criteria applied: PVS1_Strong, PP4_Strong. LINK:https://erepo.genome.network/evrepo/ui/classification/CA123246/MONDO:0010119/011

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

ITGB3
NM_000212.3 stop_gained

Scores

4
2

Clinical Significance

Pathogenic reviewed by expert panel P:9

Conservation

PhyloP100: 3.88

Publications

9 publications found
Variant links:
Genes affected
ITGB3 (HGNC:6156): (integrin subunit beta 3) The ITGB3 protein product is the integrin beta chain beta 3. Integrins are integral cell-surface proteins composed of an alpha chain and a beta chain. A given chain may combine with multiple partners resulting in different integrins. Integrin beta 3 is found along with the alpha IIb chain in platelets. Integrins are known to participate in cell adhesion as well as cell-surface mediated signalling. [provided by RefSeq, Jul 2008]
EFCAB13-DT (HGNC:55338): (EFCAB13 divergent transcript)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 8 ACMG points.

PVS1
For more information check the summary or visit ClinGen Evidence Repository.
PP4
For more information check the summary or visit ClinGen Evidence Repository.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000212.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ITGB3
NM_000212.3
MANE Select
c.2248C>Tp.Arg750*
stop_gained
Exon 14 of 15NP_000203.2
EFCAB13-DT
NR_110880.1
n.363-3802G>A
intron
N/A
EFCAB13-DT
NR_110881.1
n.227-3802G>A
intron
N/A

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ITGB3
ENST00000559488.7
TSL:1 MANE Select
c.2248C>Tp.Arg750*
stop_gained
Exon 14 of 15ENSP00000452786.2P05106-1
ENSG00000259753
ENST00000560629.1
TSL:2
n.2212C>T
non_coding_transcript_exon
Exon 14 of 18ENSP00000456711.2H3BM21
ITGB3
ENST00000696963.1
c.2248C>Tp.Arg750*
stop_gained
Exon 14 of 14ENSP00000513002.1P05106-2

Frequencies

GnomAD3 genomes
AF:
0.000151
AC:
23
AN:
152106
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000437
AC:
11
AN:
251438
AF XY:
0.0000442
show subpopulations
Gnomad AFR exome
AF:
0.000615
Gnomad AMR exome
AF:
0.0000289
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:
0.0000164
AC:
24
AN:
1461888
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
727244
show subpopulations
African (AFR)
AF:
0.000478
AC:
16
AN:
33480
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1112006
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.452
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

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
AF:
0.000151
AC:
23
AN:
152224
Hom.:
0
Cov.:
32
AF XY:
0.000134
AC XY:
10
AN XY:
74408
show subpopulations
African (AFR)
AF:
0.000481
AC:
20
AN:
41558
American (AMR)
AF:
0.0000654
AC:
1
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5166
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4816
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10598
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
1
3
4
6
7
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:
0.0000927
Hom.:
0
Bravo
AF:
0.000128
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000494
AC:
6

ClinVar

ClinVar submissions
Significance:Pathogenic
Revision:reviewed by expert panel
View on ClinVar
Pathogenic
VUS
Benign
Condition
2
-
-
Glanzmann thrombasthenia 2 (2)
2
-
-
not provided (2)
1
-
-
Glanzmann thrombasthenia (1)
1
-
-
Glanzmann thrombasthenia 1 (1)
1
-
-
Hyper-IgE recurrent infection syndrome 1, autosomal dominant (1)
1
-
-
Myocardial infarction, susceptibility to;C5543273:Glanzmann thrombasthenia 2;C5543280:Bleeding disorder, platelet-type, 24 (1)
1
-
-
Platelet-type bleeding disorder 16 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.63
CADD
Pathogenic
40
DANN
Uncertain
1.0
Eigen
Pathogenic
0.83
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Uncertain
0.94
D
PhyloP100
3.9
Vest4
0.93
GERP RS
5.5
Mutation Taster
=0/200
disease causing (ClinVar)

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: rs121918450; hg19: chr17-45384950; COSMIC: COSV71385222; COSMIC: COSV71385222; API