chr3-128481214-C-G

Position:

• chr3-128481214-C-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_032638.5(GATA2):​c.1248G>C​(p.Glu416Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: GATA2 NM_032638.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.00

Genes affected

GATA2 (HGNC:4171): (GATA binding protein 2) This gene encodes a member of the GATA family of zinc-finger transcription factors that are named for the consensus nucleotide sequence they bind in the promoter regions of target genes. The encoded protein plays an essential role in regulating transcription of genes involved in the development and proliferation of hematopoietic and endocrine cell lineages. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Mar 2009]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.050849527).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GATA2	NM_001145661.2	c.1248G>C	p.Glu416Asp	missense_variant	7/7	ENST00000487848.6	NP_001139133.1
GATA2	NM_032638.5	c.1248G>C	p.Glu416Asp	missense_variant	6/6	ENST00000341105.7	NP_116027.2
GATA2	NM_001145662.1	c.1206G>C	p.Glu402Asp	missense_variant	6/6		NP_001139134.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GATA2	ENST00000341105.7	c.1248G>C	p.Glu416Asp	missense_variant	6/6	1	NM_032638.5	ENSP00000345681	P1
GATA2	ENST00000487848.6	c.1248G>C	p.Glu416Asp	missense_variant	7/7	1	NM_001145661.2	ENSP00000417074	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461894 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727248

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Deafness-lymphedema-leukemia syndrome;C3280030:Monocytopenia with susceptibility to infections Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Apr 04, 2022

This sequence change replaces glutamic acid, which is acidic and polar, with aspartic acid, which is acidic and polar, at codon 416 of the GATA2 protein (p.Glu416Asp). 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt GATA2 protein function. ClinVar contains an entry for this variant (Variation ID: 539710). This variant has not been reported in the literature in individuals affected with GATA2-related conditions. This variant is not present in population databases (gnomAD no frequency). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.054
BayesDel_addAF	Uncertain	0.059	T
BayesDel_noAF	Benign	-0.15
CADD	Benign	17
DANN	Uncertain	0.99
DEOGEN2	Benign	0.24	T;.;T
Eigen	Benign	-0.31
Eigen_PC	Benign	-0.13
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.73	.;T;T
M_CAP	Benign	0.053	D
MetaRNN	Benign	0.051	T;T;T
MetaSVM	Uncertain	-0.081	T
MutationAssessor	Benign	-0.11	N;.;N
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.72	T
PROVEAN	Benign	0.71	N;N;N
REVEL	Uncertain	0.38
Sift	Benign	1.0	T;T;T
Sift4G	Benign	0.92	T;T;T
Polyphen		0.0010	B;B;B
Vest4		0.094
MutPred		0.15		Gain of glycosylation at S418 (P = 0.0149);.;Gain of glycosylation at S418 (P = 0.0149);
MVP		0.65
MPC		0.57
ClinPred		0.90	D
GERP RS		3.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.13
gMVP		0.66

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: rs1553770425; hg19: chr3-128200057;