rs147955721
Variant summary
Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2
The NM_139276.3(STAT3):c.1329C>T(p.Thr443Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000148 in 1,613,894 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Consequence
NM_139276.3 synonymous
Scores
Clinical Significance
Conservation
Publications
- hyper-IgE recurrent infection syndrome 1, autosomal dominantInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, ClinGen, Labcorp Genetics (formerly Invitae)
- STAT3-related early-onset multisystem autoimmune diseaseInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp, ClinGen
- permanent neonatal diabetes mellitusInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Benign. The variant received -21 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000822 AC: 125AN: 152080Hom.: 1 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.000171 AC: 43AN: 251458 AF XY: 0.000103 show subpopulations
GnomAD4 exome AF: 0.0000780 AC: 114AN: 1461696Hom.: 0 Cov.: 31 AF XY: 0.0000481 AC XY: 35AN XY: 727154 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000821 AC: 125AN: 152198Hom.: 1 Cov.: 32 AF XY: 0.000860 AC XY: 64AN XY: 74408 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Benign:3
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This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Variant summary: STAT3 c.1329C>T alters a non-conserved nucleotide resulting in a synonymous change. 5/5 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.00023 in 277200 control chromosomes, predominantly at a frequency of 0.0022 within the African subpopulation in the gnomAD database. The observed variant frequency within African control individuals in the gnomAD database is approximately 1000 fold of the estimated maximal expected allele frequency for a pathogenic variant in STAT3 causing Hyper IgE Syndrome phenotype (2.2e-06), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African origin. To our knowledge, no occurrence of c.1329C>T in individuals affected with Hyper IgE Syndrome and no experimental evidence demonstrating its impact on protein function have been reported. Four ClinVar submissions from clinical diagnostic laboratories (evaluation after 2014) cite the variant as benign (1x) and likely benign (3x). Based on the evidence outlined above, the variant was classified as benign. -
Hyper-IgE recurrent infection syndrome 1, autosomal dominant Benign:2
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Hyper-IgE recurrent infection syndrome 1, autosomal dominant;C4288261:STAT3 gain of function Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at