Genetic Variant GLRA3:p.Thr430Ile (chr4-174643892-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_006529.4(GLRA3):c.1289C>T(p.Thr430Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000867 in 1,614,068 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00045 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000049 ( 0 hom. )

Consequence

GLRA3
NM_006529.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.14

Publications

1 publications found

Variant links:

Genes affected

GLRA3 (HGNC:4328): (glycine receptor alpha 3) This gene encodes a member of the ligand-gated ion channel protein family. The encoded protein is a member of the glycine receptor subfamily. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2013]

GLRA3 links:

ENSG00000301729 (HGNC:):

ENSG00000301729 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.09220967).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GLRA3	NM_006529.4 link	c.1289C>T	p.Thr430Ile	missense_variant	Exon 10 of 10	ENST00000274093.8	NP_006520.2	O75311-1Q9UPF3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
GLRA3	ENST00000274093.8 link	c.1289C>T	p.Thr430Ile	missense_variant	Exon 10 of 10	1	NM_006529.4	ENSP00000274093.3	O75311-1
GLRA3	ENST00000340217.5 link	c.1244C>T	p.Thr415Ile	missense_variant	Exon 9 of 9	1		ENSP00000345284.5	O75311-2
ENSG00000301729	ENST00000781118.1 link	n.880+9088G>A		intron_variant	Intron 6 of 6

Frequencies

GnomAD3 genomes

AF:

0.000447

AC:

AN:

152110

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00162

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000112

AC:

AN:

251046

AF XY:

0.0000590

show subpopulations

Gnomad AFR exome

AF:

0.00154

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000493

AC:

AN:

1461840

Hom.:

Cov.:

AF XY:

0.0000426

AC XY:

AN XY:

727220

show subpopulations

African (AFR)

AF:

0.00143

AC:

AN:

33480

American (AMR)

AF:

0.000134

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000630

AC:

AN:

1111972

Other (OTH)

AF:

0.000182

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000447

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.000484

AC XY:

AN XY:

74442

show subpopulations

African (AFR)

AF:

0.00161

AC:

AN:

41560

American (AMR)

AF:

0.0000655

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10598

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68004

Other (OTH)

AF:

0.00

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000115

Hom.:

Bravo

AF:

0.000499

ESP6500AA

AF:

0.00159

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000132

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 22, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1289C>T (p.T430I) alteration is located in exon 10 (coding exon 10) of the GLRA3 gene. This alteration results from a C to T substitution at nucleotide position 1289, causing the threonine (T) at amino acid position 430 to be replaced by an isoleucine (I). 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

Pathogenic

0.65

BayesDel_addAF

Uncertain

0.014

BayesDel_noAF

Pathogenic

0.24

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.32

T;.

Eigen

Benign

0.16

Eigen_PC

Uncertain

0.38

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.96

D;D

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.092

T;T

MetaSVM

Benign

-0.44

MutationAssessor

Benign

2.0

M;.

PhyloP100

8.1

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-2.4

N;D

REVEL

Uncertain

0.48

Sift

Benign

0.47

T;T

Sift4G

Benign

0.42

T;T

Polyphen

0.036

B;B

Vest4

0.63

MVP

0.88

MPC

0.25

ClinPred

0.11

GERP RS

5.8

Varity_R

0.32

gMVP

0.53

Mutation Taster

=10/90

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over