rs140047487
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2
The NM_032638.5(GATA2):c.176A>G(p.Tyr59Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000428 in 1,612,190 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y59N) has been classified as Uncertain significance.
Frequency
Consequence
NM_032638.5 missense
Scores
Clinical Significance
Conservation
Publications
- deafness-lymphedema-leukemia syndromeInheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp
- GATA2 deficiency with susceptibility to MDS/AMLInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
- monocytopenia with susceptibility to infectionsInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics
- acute myeloid leukemiaInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
- myelodysplastic syndromeInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| GATA2 | NM_032638.5 | c.176A>G | p.Tyr59Cys | missense_variant | Exon 2 of 6 | ENST00000341105.7 | NP_116027.2 | |
| GATA2 | NM_001145661.2 | c.176A>G | p.Tyr59Cys | missense_variant | Exon 3 of 7 | NP_001139133.1 | ||
| GATA2 | NM_001145662.1 | c.176A>G | p.Tyr59Cys | missense_variant | Exon 2 of 6 | NP_001139134.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152220Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000123 AC: 3AN: 243818 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.0000452 AC: 66AN: 1459970Hom.: 0 Cov.: 32 AF XY: 0.0000358 AC XY: 26AN XY: 726124 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152220Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74364 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
The GATA2 c.176A>G; p.Tyr59Cys variant (rs140047487), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 472450). This variant is found in the general population with an overall allele frequency of 0.001% (3/243,818 alleles) in the Genome Aggregation Database (v2.1.1). Computational analyses predict that this variant is deleterious (REVEL: 0.947). Due to limited information, the clinical significance of this variant is uncertain at this time. -
Monocytopenia with susceptibility to infections Uncertain:1
This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -
Inborn genetic diseases Uncertain:1
The p.Y59C variant (also known as c.176A>G), located in coding exon 1 of the GATA2 gene, results from an A to G substitution at nucleotide position 176. The tyrosine at codon 59 is replaced by cysteine, an amino acid with highly dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -
Deafness-lymphedema-leukemia syndrome;C3280030:Monocytopenia with susceptibility to infections Uncertain:1
This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 59 of the GATA2 protein (p.Tyr59Cys). This variant is present in population databases (rs140047487, gnomAD 0.002%). This variant has not been reported in the literature in individuals affected with GATA2-related conditions. ClinVar contains an entry for this variant (Variation ID: 472450). 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) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on GATA2 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Acute myeloid leukemia Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at