chr17-42329423-C-T

Variant names:

• chr17-42329423-C-T
• rs113994137
• NM_139276.3:c.1268G>A

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PM1 PM2 PP3_Strong PP5_Very_Strong

The NM_139276.3(STAT3):​c.1268G>A​(p.Arg423Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,210 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: STAT3 NM_139276.3 missense
• Clinical Significance: Pathogenic criteria provided, multiple submitters, no conflicts P:4 O:1
• Conservation: PhyloP100: 7.89
• Publications: 18 publications found

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]

STAT3 Gene-Disease associations (from GenCC):

• hyper-IgE recurrent infection syndrome 1, autosomal dominant

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, ClinGen, Labcorp Genetics (formerly Invitae)
• STAT3-related early-onset multisystem autoimmune disease

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp, ClinGen
• permanent neonatal diabetes mellitus

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 16 ACMG points.

• PM1: In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 6 uncertain in NM_139276.3
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.957
• PP5: Variant 17-42329423-C-T is Pathogenic according to our data. Variant chr17-42329423-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 18306.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_139276.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	STAT3	NM_139276.3	MANE Select	c.1268G>A	p.Arg423Gln	missense	Exon 14 of 24	NP_644805.1
	STAT3	NM_001369512.1		c.1268G>A	p.Arg423Gln	missense	Exon 14 of 24	NP_001356441.1
	STAT3	NM_001369513.1		c.1268G>A	p.Arg423Gln	missense	Exon 14 of 24	NP_001356442.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	STAT3	ENST00000264657.10	TSL:1 MANE Select	c.1268G>A	p.Arg423Gln	missense	Exon 14 of 24	ENSP00000264657.4
	STAT3	ENST00000588969.5	TSL:1	c.1268G>A	p.Arg423Gln	missense	Exon 14 of 24	ENSP00000467985.1
	STAT3	ENST00000404395.3	TSL:1	c.1268G>A	p.Arg423Gln	missense	Exon 14 of 24	ENSP00000384943.3

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152210 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152210 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74352

African (AFR) AF: 0.0000241 AC: 1 AN: 41462

American (AMR) AF: 0.00 AC: 0 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5200

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10614

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68032

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:4 Other:1

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Hyper-IgE recurrent infection syndrome 1, autosomal dominant Pathogenic:2 Other:1

Oct 18, 2007

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

GeneReviews

Significance: not provided

Review Status: no classification provided

Collection Method: literature only

Sep 01, 2022

3billion

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The variant is not observed in the gnomAD v2.1.1 dataset. Missense changes are a common disease-causing mechanism. In silico tool predictions suggest damaging effect of the variant on gene or gene product (REVEL: 0.85; 3Cnet: 0.82). Same nucleotide change resulting in same amino acid change has been previously reported as pathogenic/likely pathogenic with strong evidence (Clinvar: VCV000018306.3). The variant has been previously reported as de novo in a similarly affected individual, and has been reported to co-segregate with the disease in at least 3 similarly affected relatives/individuals in the same family or similarly affected unrelated families (PMID: 17881745). Therefore, this variant is classified as Pathogenic according to the recommendation of ACMG/AMP guideline.

STAT3-related early-onset multisystem autoimmune disease Pathogenic:1

Dec 23, 2018

Baylor Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was determined to be pathogenic according to ACMG Guidelines, 2015 [PMID:25741868]. This variant has been previously reported as disease-causing in multiple patients [PMID 17881745, 27799162, 21288777]

Hyper-IgE recurrent infection syndrome 1, autosomal dominant;C4288261:STAT3 gain of function Pathogenic:1

Dec 10, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 423 of the STAT3 protein (p.Arg423Gln). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with hyper IgE syndrome (PMID: 17881745, 21288777, 33717144). In at least one individual the variant was observed to be de novo. It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 18306). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt STAT3 protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change affects STAT3 function (PMID: 22581330). For these reasons, this variant has been classified as Pathogenic.

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.66
BayesDel_addAF	Pathogenic	0.41	D
BayesDel_noAF	Pathogenic	0.35
CADD	Pathogenic	32
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.72	D
Eigen	Pathogenic	0.83
Eigen_PC	Pathogenic	0.83
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Pathogenic	0.42	D
MetaRNN	Pathogenic	0.96	D
MetaSVM	Uncertain	0.77	D
MutationAssessor	Uncertain	2.9	M
PhyloP100		7.9
PrimateAI	Uncertain	0.77	T
PROVEAN	Benign	-1.4	N
REVEL	Pathogenic	0.85
Sift	Uncertain	0.0090	D
Sift4G	Uncertain	0.018	D
Polyphen		1.0	D
Vest4		0.92
MutPred		0.85		Gain of loop (P = 0.1069)
MVP		0.95
MPC		2.5
ClinPred		1.0	D
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.25
gMVP		0.75
Mutation Taster		=2/98	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs113994137; hg19: chr17-40481441; COSMIC: COSV52885689; COSMIC: COSV52885689;