Genetic Variant GATA2:p.Ala342Gly (chr3-128481937-G-C) – ACMG Classification: Uncertain_significance (5 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM1PM2PP3

The NM_001145661.2(GATA2):c.1025C>G(p.Ala342Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,220 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A342T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

GATA2
NM_001145661.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.91

Publications

0 publications found

Variant links:

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 Gene-Disease associations (from GenCC):

deafness-lymphedema-leukemia syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp
GATA2 deficiency with susceptibility to MDS/AML
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
monocytopenia with susceptibility to infections
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics
acute myeloid leukemia
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
myelodysplastic syndrome
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp

GATA2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM1

In a hotspot region, there are 6 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 18 uncertain in NM_001145661.2

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.822

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
GATA2	NM_001145661.2 link	c.1025C>G	p.Ala342Gly	missense_variant	Exon 6 of 7	ENST00000487848.6	NP_001139133.1
GATA2	NM_032638.5 link	c.1025C>G	p.Ala342Gly	missense_variant	Exon 5 of 6	ENST00000341105.7	NP_116027.2
GATA2	NM_001145662.1 link	c.1018-35C>G		intron_variant	Intron 4 of 5		NP_001139134.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GATA2	ENST00000341105.7 link	c.1025C>G	p.Ala342Gly	missense_variant	Exon 5 of 6	1	NM_032638.5	ENSP00000345681.2
GATA2	ENST00000487848.6 link	c.1025C>G	p.Ala342Gly	missense_variant	Exon 6 of 7	1	NM_001145661.2	ENSP00000417074.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461220

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726900

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52800

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111978

Other (OTH)

AF:

0.00

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.89

BayesDel_addAF

Uncertain

0.16

BayesDel_noAF

Uncertain

-0.010

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.76

D;D

Eigen

Uncertain

0.57

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.84

.;T

M_CAP

Pathogenic

0.76

MetaRNN

Pathogenic

0.82

D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Benign

0.86

L;L

PhyloP100

9.9

PrimateAI

Pathogenic

0.84

PROVEAN

Uncertain

-2.9

D;D

REVEL

Pathogenic

0.65

Sift

Uncertain

0.0010

D;D

Sift4G

Uncertain

0.014

D;D

Polyphen

0.95

P;P

Vest4

0.69

MutPred

0.29

Loss of stability (P = 0.0148);Loss of stability (P = 0.0148);

MVP

0.85

MPC

2.9

ClinPred

0.98

GERP RS

4.1

BranchPoint Hunter

3.0

Varity_R

0.60

gMVP

0.73

Mutation Taster

=47/53

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over