chr8-73555269-C-G

Position:

• chr8-73555269-C-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001164380.2(STAU2):​c.1223-2950G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0409 in 152,152 control chromosomes in the GnomAD database, including 405 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 0.041 (405 hom., cov: 32)
• Consequence: STAU2 NM_001164380.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.246

Genes affected

STAU2 (HGNC:11371): (staufen double-stranded RNA binding protein 2) Staufen homolog 2 is a member of the family of double-stranded RNA (dsRNA)-binding proteins involved in the transport and/or localization of mRNAs to different subcellular compartments and/or organelles. These proteins are characterized by the presence of multiple dsRNA-binding domains which are required to bind RNAs having double-stranded secondary structures. Staufen homolog 2 shares 48.5% and 59.9% similarity with drosophila and human staufen, respectively. The exact function of Staufen homolog 2 is not known, but since it contains 3 copies of conserved dsRNA binding domain, it could be involved in double-stranded RNA binding events. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2009]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.134 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
STAU2	NM_001164380.2	c.1223-2950G>C		intron_variant		ENST00000524300.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
STAU2	ENST00000524300.6	c.1223-2950G>C		intron_variant		2	NM_001164380.2	P1

Frequencies

GnomAD3 genomes AF: 0.0408 AC: 6208 AN: 152034 Hom.: 403 Cov.: 32

Gnomad AFR AF: 0.137

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0161

Gnomad ASJ AF: 0.0213

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00435

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00949

Gnomad NFE AF: 0.00196

Gnomad OTH AF: 0.0274

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0409 AC: 6219 AN: 152152 Hom.: 405 Cov.: 32 AF XY: 0.0400 AC XY: 2974 AN XY: 74396

Gnomad4 AFR AF: 0.137

Gnomad4 AMR AF: 0.0160

Gnomad4 ASJ AF: 0.0213

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00436

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00196

Gnomad4 OTH AF: 0.0271

Alfa AF: 0.0254 Hom.: 30

Bravo AF: 0.0460

Asia WGS AF: 0.0110 AC: 38 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	9.5
DANN	Benign	0.77

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: rs4342585; hg19: chr8-74467504;