Variant 20-3660768-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The ENST00000319242.8(GFRA4):c.568C>T(p.Arg190Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000318 in 1,416,718 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

GFRA4
ENST00000319242.8 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.567

Variant links:

Genes affected

GFRA4 (HGNC:13821): (GDNF family receptor alpha 4) The protein encoded by this gene is a member of the GDNF receptor family. It is a glycosylphosphatidylinositol(GPI)-linked cell surface receptor for persephin, and mediates activation of the RET tyrosine kinase receptor. This gene is a candidate gene for RET-associated diseases. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Jul 2008]

GFRA4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.27572724).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
GFRA4	NM_022139.4 linkuse as main transcript	c.489C>T	p.Tyr163=	synonymous_variant	3/6	ENST00000290417.7
GFRA4	NM_145762.3 linkuse as main transcript	c.568C>T	p.Arg190Cys	missense_variant	2/5
GFRA4	XM_005260793.2 linkuse as main transcript	c.489C>T	p.Tyr163=	synonymous_variant	3/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GFRA4	ENST00000319242.8 linkuse as main transcript	c.568C>T	p.Arg190Cys	missense_variant	2/5	1			Q9GZZ7-1
GFRA4	ENST00000290417.7 linkuse as main transcript	c.489C>T	p.Tyr163=	synonymous_variant	3/6	1	NM_022139.4	P1	Q9GZZ7-2
GFRA4	ENST00000477160.1 linkuse as main transcript	c.489C>T	p.Tyr163=	synonymous_variant, NMD_transcript_variant	3/4	1			Q9GZZ7-3

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152126

Hom.:

Cov.:

show subpopulations

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000332

AC:

AN:

1264592

Hom.:

Cov.:

AF XY:

0.0000325

AC XY:

AN XY:

614892

show subpopulations

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:

0.0000399

Gnomad4 OTH exome

AF:

0.0000191

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152126

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74302

show subpopulations

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:

0.0000441

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 10, 2023

The c.568C>T (p.R190C) alteration is located in exon 2 (coding exon 2) of the GFRA4 gene. This alteration results from a C to T substitution at nucleotide position 568, causing the arginine (R) at amino acid position 190 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.45

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.40

CADD

Benign

6.1

DANN

Uncertain

0.98

DEOGEN2

Benign

0.15

Eigen

Benign

-0.42

Eigen_PC

Benign

-0.37

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.49

M_CAP

Pathogenic

0.62

MetaRNN

Benign

0.28

MetaSVM

Benign

-0.89

MutationTaster

Benign

0.79

D;D

PROVEAN

Benign

-1.5

REVEL

Benign

0.077

Sift

Benign

0.063

Sift4G

Uncertain

0.012

Polyphen

0.066

Vest4

0.21

MutPred

0.58

Loss of MoRF binding (P = 0.0024);

MVP

0.72

MPC

0.83

ClinPred

0.93

GERP RS

1.5

Varity_R

0.10

gMVP

0.56

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over