2-190972908-C-T

Position:

• chr2-190972908-C-T

Variant summary

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

The NM_007315.4(STAT1):​c.2238+1922G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.176 in 150,810 control chromosomes in the GnomAD database, including 2,518 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 0.18 (2518 hom., cov: 29)
• Consequence: STAT1 NM_007315.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0240

Genes affected

STAT1 (HGNC:11362): (signal transducer and activator of transcription 1) 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. The protein encoded by this gene can be activated by various ligands including interferon-alpha, interferon-gamma, EGF, PDGF and IL6. This protein mediates the expression of a variety of genes, which is thought to be important for cell viability in response to different cell stimuli and pathogens. The protein plays an important role in immune responses to viral, fungal and mycobacterial pathogens. Mutations in this gene are associated with Immunodeficiency 31B, 31A, and 31C. [provided by RefSeq, Jun 2020]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.233 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
STAT1	NM_007315.4	c.2238+1922G>A		intron_variant		ENST00000361099.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
STAT1	ENST00000361099.8	c.2238+1922G>A		intron_variant		1	NM_007315.4	P4

Frequencies

GnomAD3 genomes AF: 0.176 AC: 26448 AN: 150698 Hom.: 2506 Cov.: 29

Gnomad AFR AF: 0.237

Gnomad AMI AF: 0.232

Gnomad AMR AF: 0.178

Gnomad ASJ AF: 0.179

Gnomad EAS AF: 0.0881

Gnomad SAS AF: 0.171

Gnomad FIN AF: 0.121

Gnomad MID AF: 0.177

Gnomad NFE AF: 0.152

Gnomad OTH AF: 0.178

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

GnomAD4 genome AF: 0.176 AC: 26509 AN: 150810 Hom.: 2518 Cov.: 29 AF XY: 0.174 AC XY: 12803 AN XY: 73582

Gnomad4 AFR AF: 0.237

Gnomad4 AMR AF: 0.178

Gnomad4 ASJ AF: 0.179

Gnomad4 EAS AF: 0.0880

Gnomad4 SAS AF: 0.172

Gnomad4 FIN AF: 0.121

Gnomad4 NFE AF: 0.152

Gnomad4 OTH AF: 0.179

Alfa AF: 0.152 Hom.: 1789

Bravo AF: 0.185

Asia WGS AF: 0.183 AC: 636 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	8.6
DANN	Benign	0.73

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: rs16824035; hg19: chr2-191837634;