chr11-125592720-T-G

Position:

• chr11-125592720-T-G

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BS1 BS2

The ENST00000527606.5(STT3A):​c.-36+833T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0057 in 291,446 control chromosomes in the GnomAD database, including 27 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.010 (26 hom., cov: 32)
  • Exomes 𝑓: 0.00098 (1 hom.)
• Consequence: STT3A ENST00000527606.5 intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -3.89

Genes affected

STT3A (HGNC:6172): (STT3 oligosaccharyltransferase complex catalytic subunit A) The protein encoded by this gene is a catalytic subunit of the N-oligosaccharyltransferase (OST) complex, which functions in the endoplasmic reticulum to transfer glycan chains to asparagine residues of target proteins. A separate complex containing a similar catalytic subunit with an overlapping function also exists. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2015]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.76).
• BP6: Variant 11-125592720-T-G is Benign according to our data. Variant chr11-125592720-T-G is described in ClinVar as [Likely_benign]. Clinvar id is 1329747.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.01 (1524/152274) while in subpopulation AFR AF= 0.0341 (1415/41554). AF 95% confidence interval is 0.0326. There are 26 homozygotes in gnomad4. There are 712 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 26 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
STT3A	XM_047426897.1	c.-252+833T>G		intron_variant			XP_047282853.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
STT3A	ENST00000527606.5	c.-36+833T>G		intron_variant		4		ENSP00000436558

Frequencies

GnomAD3 genomes AF: 0.0100 AC: 1523 AN: 152156 Hom.: 26 Cov.: 32

Gnomad AFR AF: 0.0341

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00537

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000413

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000176

Gnomad OTH AF: 0.00669

GnomAD4 exome AF: 0.000984 AC: 137 AN: 139172 Hom.: 1 Cov.: 0 AF XY: 0.000792 AC XY: 62 AN XY: 78322

Gnomad4 AFR exome AF: 0.0318

Gnomad4 AMR exome AF: 0.00117

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000306

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000173

Gnomad4 OTH exome AF: 0.00110

GnomAD4 genome AF: 0.0100 AC: 1524 AN: 152274 Hom.: 26 Cov.: 32 AF XY: 0.00956 AC XY: 712 AN XY: 74454

Gnomad4 AFR AF: 0.0341

Gnomad4 AMR AF: 0.00536

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000176

Gnomad4 OTH AF: 0.00662

Alfa AF: 0.00431 Hom.: 3

Bravo AF: 0.0117

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Jun 24, 2021

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.76
CADD	Benign	0.073
DANN	Benign	0.43

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs115754046; hg19: chr11-125462615;