NM_005264.8:c.1294delA

Variant names:

• chr10-116064501-GT-G
• rs2133762469
• NM_005264.8:c.1294delA

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PVS1_Moderate PM2 PP5

The NM_005264.8(GFRA1):​c.1294delA​(p.Thr432ProfsTer13) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: GFRA1 NM_005264.8 frameshift
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 2.54
• Publications: 1 publications found

Genes affected

GFRA1 (HGNC:4243): (GDNF family receptor alpha 1) This gene encodes a member of the glial cell line-derived neurotrophic factor receptor (GDNFR) family of proteins. The encoded preproprotein is proteolytically processed to generate the mature receptor. Glial cell line-derived neurotrophic factor (GDNF) and neurturin (NTN) are two structurally related, potent neurotrophic factors that play key roles in the control of neuron survival and differentiation. This receptor is a glycosylphosphatidylinositol (GPI)-linked cell surface receptor for both GDNF and NTN, and mediates activation of the RET tyrosine kinase receptor. This gene is a candidate gene for Hirschsprung disease. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed. [provided by RefSeq, Jan 2016]

GFRA1 Gene-Disease associations (from GenCC):

• renal hypodysplasia/aplasia 4

  Inheritance: AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

ACMG classification

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

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.0744 CDS is truncated, and there are 1 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 10-116064501-GT-G is Pathogenic according to our data. Variant chr10-116064501-GT-G is described in ClinVar as Pathogenic. ClinVar VariationId is 1686971.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005264.8. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GFRA1	NM_005264.8	MANE Select	c.1294delA	p.Thr432ProfsTer13	frameshift	Exon 11 of 11	NP_005255.1	P56159-1
	GFRA1	NM_001348098.4		c.1294delA	p.Thr432ProfsTer13	frameshift	Exon 11 of 11	NP_001335027.1	P56159-1
	GFRA1	NM_001145453.4		c.1279delA	p.Thr427ProfsTer13	frameshift	Exon 10 of 10	NP_001138925.1	P56159-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GFRA1	ENST00000355422.11	TSL:5 MANE Select	c.1294delA	p.Thr432ProfsTer13	frameshift	Exon 11 of 11	ENSP00000347591.6	P56159-1
	GFRA1	ENST00000369236.5	TSL:1	c.1279delA	p.Thr427ProfsTer13	frameshift	Exon 9 of 9	ENSP00000358239.1	P56159-2
	GFRA1	ENST00000369234.5	TSL:5	c.1294delA	p.Thr432ProfsTer13	frameshift	Exon 11 of 11	ENSP00000358237.4	P56159-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
1	-	-	Renal hypodysplasia/aplasia 4 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		2.5

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

dbSNP: rs2133762469; hg19: chr10-117824012;