17-47283352-A-G

Variant names:

• chr17-47283352-A-G
• rs75354240
• NM_000212.3:c.166-2A>G

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1 PM2 PP5_Very_Strong

The NM_000212.3(ITGB3):​c.166-2A>G variant causes a splice acceptor, intron change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (★★★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ITGB3 NM_000212.3 splice_acceptor, intron
• Scores: Splicing: ADA: 0.9999
• Clinical Significance: Pathogenic reviewed by expert panel P:2
• Conservation: PhyloP100: 3.86
• Publications: 0 publications found

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]

ENSG00000259753 (HGNC:):

EFCAB13-DT (HGNC:55338): (EFCAB13 divergent transcript)

ACMG classification

Our verdict: Pathogenic. The variant received 18 ACMG points.

• PVS1: Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, No cryptic splice site detected. Exon removal results in frameshift change.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 17-47283352-A-G is Pathogenic according to our data. Variant chr17-47283352-A-G is described in ClinVar as Pathogenic. ClinVar VariationId is 996186.Status of the report is reviewed_by_expert_panel, 3 stars.

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.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ITGB3	NM_000212.3	MANE Select	c.166-2A>G		splice_acceptor intron	N/A	NP_000203.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ITGB3	ENST00000559488.7	TSL:1 MANE Select	c.166-2A>G		splice_acceptor intron	N/A	ENSP00000452786.2	P05106-1
	ITGB3	ENST00000571680.1	TSL:1	c.166-2A>G		splice_acceptor intron	N/A	ENSP00000461626.1	I3L4X8
	ENSG00000259753	ENST00000560629.1	TSL:2	n.130-2A>G		splice_acceptor intron	N/A	ENSP00000456711.2	H3BM21

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: reviewed by expert panel

Pathogenic	VUS	Benign	Condition
1	-	-	Glanzmann thrombasthenia (1)
1	-	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Benign	-0.39
CADD	Pathogenic	31
DANN	Benign	0.96
Eigen	Pathogenic	0.83
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Uncertain	0.93	D
PhyloP100		3.9
GERP RS		5.9
Mutation Taster		=0/100	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.95
SpliceAI score (max)		1.0		Details are displayed if max score is > 0.2
DS_AL_spliceai		1.0		Position offset: 2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs75354240; hg19: chr17-45360718;