chr17-42374255-T-C

Position:

• chr17-42374255-T-C

Variant summary

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

The NM_139276.3(STAT3):​c.-24+14024A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.393 in 152,040 control chromosomes in the GnomAD database, including 11,992 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 0.39 (11991 hom., cov: 31)
  • Exomes 𝑓: 0.50 (1 hom.)
• Consequence: STAT3 NM_139276.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.55

Genes affected

STAT3 (HGNC:11364): (signal transducer and activator of transcription 3) The protein encoded by this gene is a member of the STAT protein family. In response to cytokines and growth factors, STAT family members are phosphorylated by the receptor associated kinases, and then form homo- or heterodimers that translocate to the cell nucleus where they act as transcription activators. This protein is activated through phosphorylation in response to various cytokines and growth factors including IFNs, EGF, IL5, IL6, HGF, LIF and BMP2. This protein mediates the expression of a variety of genes in response to cell stimuli, and thus plays a key role in many cellular processes such as cell growth and apoptosis. The small GTPase Rac1 has been shown to bind and regulate the activity of this protein. PIAS3 protein is a specific inhibitor of this protein. This gene also plays a role in regulating host response to viral and bacterial infections. Mutations in this gene are associated with infantile-onset multisystem autoimmune disease and hyper-immunoglobulin E syndrome. [provided by RefSeq, Aug 2020]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.98).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.465 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
STAT3	NM_139276.3	c.-24+14024A>G		intron_variant		ENST00000264657.10	NP_644805.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
STAT3	ENST00000264657.10	c.-24+14024A>G		intron_variant		1	NM_139276.3	ENSP00000264657	A1

Frequencies

GnomAD3 genomes AF: 0.393 AC: 59656 AN: 151914 Hom.: 11960 Cov.: 31

Gnomad AFR AF: 0.388

Gnomad AMI AF: 0.377

Gnomad AMR AF: 0.273

Gnomad ASJ AF: 0.406

Gnomad EAS AF: 0.416

Gnomad SAS AF: 0.482

Gnomad FIN AF: 0.423

Gnomad MID AF: 0.366

Gnomad NFE AF: 0.410

Gnomad OTH AF: 0.377

GnomAD4 exome AF: 0.500 AC: 4 AN: 8 Hom.: 1 Cov.: 0 AF XY: 0.667 AC XY: 4 AN XY: 6

Gnomad4 NFE exome AF: 0.667

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome AF: 0.393 AC: 59731 AN: 152032 Hom.: 11991 Cov.: 31 AF XY: 0.392 AC XY: 29136 AN XY: 74310

Gnomad4 AFR AF: 0.388

Gnomad4 AMR AF: 0.273

Gnomad4 ASJ AF: 0.406

Gnomad4 EAS AF: 0.416

Gnomad4 SAS AF: 0.481

Gnomad4 FIN AF: 0.423

Gnomad4 NFE AF: 0.410

Gnomad4 OTH AF: 0.384

Alfa AF: 0.399 Hom.: 4474

Bravo AF: 0.380

Asia WGS AF: 0.517 AC: 1796 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.98
CADD	Benign	0.25
DANN	Benign	0.44

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: rs12949918; hg19: chr17-40526273;