Genetic Variant GATA2:p.Ala104Asp (chr3-128486287-G-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_001145661.2(GATA2):c.311C>A(p.Ala104Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000698 in 1,431,646 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. A104V) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

GATA2
NM_001145661.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.57

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 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.767

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
GATA2	NM_001145661.2 link	c.311C>A	p.Ala104Asp	missense_variant	Exon 4 of 7	ENST00000487848.6	NP_001139133.1
GATA2	NM_032638.5 link	c.311C>A	p.Ala104Asp	missense_variant	Exon 3 of 6	ENST00000341105.7	NP_116027.2
GATA2	NM_001145662.1 link	c.311C>A	p.Ala104Asp	missense_variant	Exon 3 of 6		NP_001139134.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GATA2	ENST00000341105.7 link	c.311C>A	p.Ala104Asp	missense_variant	Exon 3 of 6	1	NM_032638.5	ENSP00000345681.2
GATA2	ENST00000487848.6 link	c.311C>A	p.Ala104Asp	missense_variant	Exon 4 of 7	1	NM_001145661.2	ENSP00000417074.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.98e-7

AC:

AN:

1431646

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

708914

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33330

American (AMR)

AF:

0.00

AC:

AN:

38508

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25422

East Asian (EAS)

AF:

0.00

AC:

AN:

38820

South Asian (SAS)

AF:

0.00

AC:

AN:

81698

European-Finnish (FIN)

AF:

0.0000202

AC:

AN:

49542

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5554

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1099292

Other (OTH)

AF:

0.00

AC:

AN:

59480

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.225

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.60

BayesDel_addAF

Pathogenic

0.35

BayesDel_noAF

Pathogenic

0.27

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.43

T;.;T;T

Eigen

Uncertain

0.46

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.91

.;D;D;D

M_CAP

Pathogenic

0.41

MetaRNN

Pathogenic

0.77

D;D;D;D

MetaSVM

Pathogenic

0.87

MutationAssessor

Benign

1.8

L;L;L;.

PhyloP100

7.6

PrimateAI

Uncertain

0.76

PROVEAN

Benign

-1.4

N;N;N;N

REVEL

Pathogenic

0.82

Sift

Benign

0.080

T;T;T;D

Sift4G

Benign

0.63

T;T;T;D

Polyphen

0.94

P;D;P;.

Vest4

0.91

MutPred

0.47

Loss of glycosylation at K102 (P = 0.029);Loss of glycosylation at K102 (P = 0.029);Loss of glycosylation at K102 (P = 0.029);Loss of glycosylation at K102 (P = 0.029);

MVP

0.87

MPC

1.8

ClinPred

0.96

GERP RS

3.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.24

gMVP

0.83

Mutation Taster

=72/28

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over