3-128481090-G-A

Position:

• chr3-128481090-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_032638.5(GATA2):​c.1372C>T​(p.Pro458Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000686 in 1,458,618 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: GATA2 NM_032638.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.66

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]

GATA2 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GATA2	NM_032638.5	c.1372C>T	p.Pro458Ser	missense_variant	6/6	ENST00000341105.7	NP_116027.2
GATA2	NM_001145661.2	c.1372C>T	p.Pro458Ser	missense_variant	7/7		NP_001139133.1
GATA2	NM_001145662.1	c.1330C>T	p.Pro444Ser	missense_variant	6/6		NP_001139134.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GATA2	ENST00000341105.7	c.1372C>T	p.Pro458Ser	missense_variant	6/6	1	NM_032638.5	ENSP00000345681.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.86e-7 AC: 1 AN: 1458618 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 725030

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000224

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

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

Jun 15, 2017

In summary, this variant has uncertain impact on GATA2 function. The available evidence is currently insufficient to determine its role in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with a GATA2-related disease. This variant is not present in population databases (ExAC no frequency). This sequence change replaces proline with serine at codon 458 of the GATA2 protein (p.Pro458Ser). The proline residue is moderately conserved and there is a moderate physicochemical difference between proline and serine. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.37
BayesDel_addAF	Pathogenic	0.25	D
BayesDel_noAF	Uncertain	0.12
CADD	Pathogenic	27
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.75	D;.;D
Eigen	Uncertain	0.67
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.93	.;D;D
M_CAP	Pathogenic	0.50	D
MetaRNN	Uncertain	0.69	D;D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Uncertain	2.8	M;.;M
PrimateAI	Uncertain	0.75	T
PROVEAN	Benign	-2.2	N;N;N
REVEL	Uncertain	0.62
Sift	Uncertain	0.020	D;D;D
Sift4G	Benign	0.14	T;T;T
Polyphen		1.0	D;D;D
Vest4		0.49
MutPred		0.22		Loss of glycosylation at T455 (P = 0.0537);.;Loss of glycosylation at T455 (P = 0.0537);
MVP		0.84
MPC		0.63
ClinPred		0.91	D
GERP RS		4.8
Varity_R		0.13
gMVP		0.76

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: rs1169516070; hg19: chr3-128199933;