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GeneBe

8-21705053-C-T

Variant summary

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

The NM_001495.5(GFRA2):​c.977G>A​(p.Arg326His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000236 in 1,610,822 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

GFRA2
NM_001495.5 missense

Scores

4
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.90
Variant links:
Genes affected
GFRA2 (HGNC:4244): (GDNF family receptor alpha 2) 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. The protein encoded by this gene is a member of the GDNF receptor family. It is a glycosylphosphatidylinositol(GPI)-linked cell surface receptor for both GDNF and NTN, and mediates activation of the RET tyrosine kinase receptor. This encoded protein acts preferentially as a receptor for NTN compared to its other family member, GDNF family receptor alpha 1. This gene is a candidate gene for RET-associated diseases. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

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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=0.3020248).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GFRA2NM_001495.5 linkuse as main transcriptc.977G>A p.Arg326His missense_variant 6/9 ENST00000524240.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GFRA2ENST00000524240.6 linkuse as main transcriptc.977G>A p.Arg326His missense_variant 6/91 NM_001495.5 P1O00451-1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152006
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000209
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000247
AC:
6
AN:
243376
Hom.:
0
AF XY:
0.0000303
AC XY:
4
AN XY:
132016
show subpopulations
Gnomad AFR exome
AF:
0.000134
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000102
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000903
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000206
AC:
30
AN:
1458816
Hom.:
0
Cov.:
32
AF XY:
0.0000262
AC XY:
19
AN XY:
725300
show subpopulations
Gnomad4 AFR exome
AF:
0.000209
Gnomad4 AMR exome
AF:
0.0000450
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000129
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.0000498
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152006
Hom.:
0
Cov.:
31
AF XY:
0.0000943
AC XY:
7
AN XY:
74232
show subpopulations
Gnomad4 AFR
AF:
0.000121
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000209
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000756
ExAC
AF:
0.0000331
AC:
4

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.088
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.28
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.16
T;T;.;.
Eigen
Benign
0.060
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.84
D
M_CAP
Benign
0.026
D
MetaRNN
Benign
0.30
T;T;T;T
MetaSVM
Benign
-0.66
T
MutationAssessor
Benign
1.8
L;L;.;.
MutationTaster
Benign
0.96
D;D;D;D
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-1.7
N;N;N;N
REVEL
Benign
0.17
Sift
Benign
0.11
T;T;T;D
Sift4G
Uncertain
0.055
T;T;T;T
Polyphen
0.085
B;B;B;.
Vest4
0.38
MutPred
0.58
Loss of phosphorylation at S328 (P = 0.0912);Loss of phosphorylation at S328 (P = 0.0912);.;.;
MVP
0.77
MPC
0.025
ClinPred
0.35
T
GERP RS
5.2
Varity_R
0.41
gMVP
0.56

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

Publications

LitVar

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

Other links and lift over

dbSNP: rs781276745; hg19: chr8-21562565; COSMIC: COSV60778753; API