rs34997637

Positions:

• chr2-190994104-G-A
• chr2-190994104-G-C

Variant summary

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

The NM_007315.4(STAT1):​c.944+957C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.21 in 152,124 control chromosomes in the GnomAD database, including 3,860 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 0.21 (3860 hom., cov: 31)
• Consequence: STAT1 NM_007315.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.515

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=-0.86).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.466 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
STAT1	NM_007315.4	c.944+957C>T		intron_variant		ENST00000361099.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
STAT1	ENST00000361099.8	c.944+957C>T		intron_variant		1	NM_007315.4	P4

Frequencies

GnomAD3 genomes AF: 0.210 AC: 31986 AN: 152006 Hom.: 3856 Cov.: 31

Gnomad AFR AF: 0.122

Gnomad AMI AF: 0.232

Gnomad AMR AF: 0.187

Gnomad ASJ AF: 0.272

Gnomad EAS AF: 0.482

Gnomad SAS AF: 0.176

Gnomad FIN AF: 0.260

Gnomad MID AF: 0.231

Gnomad NFE AF: 0.240

Gnomad OTH AF: 0.221

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

GnomAD4 genome AF: 0.210 AC: 31995 AN: 152124 Hom.: 3860 Cov.: 31 AF XY: 0.211 AC XY: 15696 AN XY: 74354

Gnomad4 AFR AF: 0.122

Gnomad4 AMR AF: 0.187

Gnomad4 ASJ AF: 0.272

Gnomad4 EAS AF: 0.482

Gnomad4 SAS AF: 0.176

Gnomad4 FIN AF: 0.260

Gnomad4 NFE AF: 0.240

Gnomad4 OTH AF: 0.229

Alfa AF: 0.241 Hom.: 7852

Bravo AF: 0.203

Asia WGS AF: 0.314 AC: 1093 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	3.8
DANN	Benign	0.74

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: rs34997637; hg19: chr2-191858830;