X-48791086-C-G

Position:

• chrX-48791086-C-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_002049.4(GATA1):​c.-19-5C>G variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000009 in 111,055 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.0000090 (0 hom., 1 hem., cov: 22)
  • Exomes 𝑓: 9.5e-7 (0 hom. 0 hem.)
  • Failed GnomAD Quality Control
• Consequence: GATA1 NM_002049.4 splice_region, splice_polypyrimidine_tract, intron
• Scores: Splicing: ADA: 0.0008609
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0490

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]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.56).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GATA1	NM_002049.4	c.-19-5C>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000376670.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GATA1	ENST00000376670.9	c.-19-5C>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_002049.4	P4

Frequencies

GnomAD3 genomes AF: 0.00000900 AC: 1 AN: 111055 Hom.: 0 Cov.: 22 AF XY: 0.0000301 AC XY: 1 AN XY: 33277

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000190

Gnomad OTH AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 9.50e-7 AC: 1 AN: 1053106 Hom.: 0 Cov.: 27 AF XY: 0.00 AC XY: 0 AN XY: 328876

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000124

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome AF: 0.00000900 AC: 1 AN: 111055 Hom.: 0 Cov.: 22 AF XY: 0.0000301 AC XY: 1 AN XY: 33277

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000190

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.56
CADD	Benign	2.3
DANN	Benign	0.75

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00086
dbscSNV1_RF	Benign	0.078
SpliceAI score (max)		0.010		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: rs782439030; hg19: chrX-48649493;