17-44372214-G-C

Variant names:

• chr17-44372214-G-C
• rs77992265
• NM_000419.5:c.*150C>G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_000419.5(ITGA2B):​c.*150C>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000939 in 734,918 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.000085 (0 hom., cov: 31)
  • Exomes 𝑓: 0.000096 (1 hom.)
• Consequence: ITGA2B NM_000419.5 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0140

Genes affected

ITGA2B (HGNC:6138): (integrin subunit alpha 2b) This gene encodes a member of the integrin alpha chain family of proteins. The encoded preproprotein is proteolytically processed to generate light and heavy chains that associate through disulfide linkages to form a subunit of the alpha-IIb/beta-3 integrin cell adhesion receptor. This receptor plays a crucial role in the blood coagulation system, by mediating platelet aggregation. Mutations in this gene are associated with platelet-type bleeding disorders, which are characterized by a failure of platelet aggregation, including Glanzmann thrombasthenia. [provided by RefSeq, Jan 2016]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ITGA2B	NM_000419.5	c.*150C>G		3_prime_UTR_variant	Exon 30 of 30	ENST00000262407.6	NP_000410.2
ITGA2B	XM_011524749.2	c.*150C>G		3_prime_UTR_variant	Exon 29 of 29		XP_011523051.2
ITGA2B	XM_011524750.2	c.*150C>G		3_prime_UTR_variant	Exon 29 of 29		XP_011523052.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ITGA2B	ENST00000262407	c.*150C>G		3_prime_UTR_variant	Exon 30 of 30	1	NM_000419.5	ENSP00000262407.5
ITGA2B	ENST00000648408	c.*150C>G		3_prime_UTR_variant	Exon 25 of 25			ENSP00000498119.1
ITGA2B	ENST00000587295	c.*150C>G		3_prime_UTR_variant	Exon 3 of 3	3		ENSP00000467269.1

Frequencies

GnomAD3 genomes AF: 0.0000855 AC: 13 AN: 152132 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000197

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000385

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000882

Gnomad OTH AF: 0.000478

GnomAD4 exome AF: 0.0000961 AC: 56 AN: 582668 Hom.: 1 Cov.: 7 AF XY: 0.000106 AC XY: 33 AN XY: 312406

Gnomad4 AFR exome AF: 0.000192

Gnomad4 AMR exome AF: 0.000322

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000312

Gnomad4 SAS exome AF: 0.000162

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000824

Gnomad4 OTH exome AF: 0.0000645

GnomAD4 genome AF: 0.0000854 AC: 13 AN: 152250 Hom.: 0 Cov.: 31 AF XY: 0.0000941 AC XY: 7 AN XY: 74428

Gnomad4 AFR AF: 0.0000241

Gnomad4 AMR AF: 0.000196

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000386

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000882

Gnomad4 OTH AF: 0.000473

Bravo AF: 0.000125

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.81
DANN	Benign	0.46

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

LitVar

Other links and lift over

dbSNP: rs77992265; hg19: chr17-42449582;