3-128483868-G-C

Variant names:

• chr3-128483868-G-C
• rs387906632
• NM_032638.5:c.1009C>G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_032638.5(GATA2):​c.1009C>G​(p.Arg337Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,850 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 (★).

• 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: 4.09

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 Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.887

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GATA2	NM_032638.5	c.1009C>G	p.Arg337Gly	missense_variant	Exon 4 of 6	ENST00000341105.7	NP_116027.2
GATA2	NM_001145661.2	c.1009C>G	p.Arg337Gly	missense_variant	Exon 5 of 7		NP_001139133.1
GATA2	NM_001145662.1	c.1009C>G	p.Arg337Gly	missense_variant	Exon 4 of 6		NP_001139134.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GATA2	ENST00000341105.7	c.1009C>G	p.Arg337Gly	missense_variant	Exon 4 of 6	1	NM_032638.5	ENSP00000345681.2
GATA2	ENST00000487848.6	c.1009C>G	p.Arg337Gly	missense_variant	Exon 5 of 7	1		ENSP00000417074.1
GATA2	ENST00000430265.6	c.1009C>G	p.Arg337Gly	missense_variant	Exon 4 of 6	1		ENSP00000400259.2
GATA2	ENST00000696466.1	c.1291C>G	p.Arg431Gly	missense_variant	Exon 6 of 8			ENSP00000512647.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461850 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727214

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

Oct 05, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with glycine, which is neutral and non-polar, at codon 337 of the GATA2 protein (p.Arg337Gly). 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) has been performed at Invitae 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. ClinVar contains an entry for this variant (Variation ID: 1038904). 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	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.37	D
BayesDel_noAF	Pathogenic	0.30
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.83	D;.;D
Eigen	Benign	0.19
Eigen_PC	Benign	0.15
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.83	.;T;D
M_CAP	Pathogenic	0.91	D
MetaRNN	Pathogenic	0.89	D;D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Benign	1.7	L;L;L
PrimateAI	Pathogenic	0.85	D
PROVEAN	Pathogenic	-6.0	D;D;D
REVEL	Pathogenic	0.82
Sift	Uncertain	0.0010	D;D;D
Sift4G	Uncertain	0.0020	D;D;D
Polyphen		0.98	D;D;D
Vest4		0.78
MutPred		0.44		Gain of glycosylation at S340 (P = 0.0157);Gain of glycosylation at S340 (P = 0.0157);Gain of glycosylation at S340 (P = 0.0157);
MVP		0.97
MPC		3.4
ClinPred		1.0	D
GERP RS		3.3
Varity_R		0.80
gMVP		0.94

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: rs387906632; hg19: chr3-128202711;