NM_002049.4:c.209delG

Variant names:

• chrX-48791317-AG-A
• NM_002049.4:c.209delG

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PM2

The NM_002049.4(GATA1):​c.209delG​(p.Arg70AsnfsTer67) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. R70R) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 22)
• Consequence: GATA1 NM_002049.4 frameshift
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.55
• Publications: 0 publications found

Genes affected

GATA1 (HGNC:4170): (GATA binding protein 1) This gene encodes a protein which belongs to the GATA family of transcription factors. The protein plays an important role in erythroid development by regulating the switch of fetal hemoglobin to adult hemoglobin. Mutations in this gene have been associated with X-linked dyserythropoietic anemia and thrombocytopenia. [provided by RefSeq, Jul 2008]

GATA1 Gene-Disease associations (from GenCC):

• GATA1-Related X-Linked Cytopenia

  Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
• thrombocytopenia, X-linked, with or without dyserythropoietic anemia

  Inheritance: XL Classification: STRONG, MODERATE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• beta-thalassemia-X-linked thrombocytopenia syndrome

  Inheritance: XL Classification: MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
• Diamond-Blackfan anemia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• cutaneous porphyria

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• thrombocytopenia with congenital dyserythropoietic anemia

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
• X-linked dyserythropoetic anemia with abnormal platelets and neutropenia

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000232828 (HGNC:):

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002049.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GATA1	NM_002049.4	MANE Select	c.209delG	p.Arg70AsnfsTer67	frameshift	Exon 2 of 6	NP_002040.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GATA1	ENST00000376670.9	TSL:1 MANE Select	c.209delG	p.Arg70AsnfsTer67	frameshift	Exon 2 of 6	ENSP00000365858.3
	GATA1	ENST00000696450.1		c.209delG	p.Arg70AsnfsTer67	frameshift	Exon 2 of 6	ENSP00000512637.1
	GATA1	ENST00000376665.4	TSL:5	c.209delG	p.Arg70AsnfsTer67	frameshift	Exon 2 of 6	ENSP00000365853.3

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 22

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		1.5

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

Other links and lift over

hg19: chrX-48649724;