Genetic Variant NM_000171.4:c.85G>T (chr5-151892410-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000171.4(GLRA1):c.85G>T(p.Ala29Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,730 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

GLRA1
NM_000171.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.73

Publications

0 publications found

Variant links:

Genes affected

GLRA1 (HGNC:4326): (glycine receptor alpha 1) The protein encoded by this gene is a subunit of a pentameric inhibitory glycine receptor, which mediates postsynaptic inhibition in the central nervous system. Defects in this gene are a cause of startle disease (STHE), also known as hereditary hyperekplexia or congenital stiff-person syndrome. Multiple transcript variants encoding different isoforms have been found. [provided by RefSeq, Dec 2015]

GLRA1 Gene-Disease associations (from GenCC):

hyperekplexia 1
Inheritance: AR, AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
hereditary hyperekplexia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

GLRA1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.21804115).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000171.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
GLRA1	NM_000171.4	MANE Select	c.85G>T	p.Ala29Ser	missense	Exon 2 of 9	NP_000162.2	P23415-2
GLRA1	NM_001146040.2		c.85G>T	p.Ala29Ser	missense	Exon 2 of 9	NP_001139512.1	P23415-1
GLRA1	NM_001292000.2		c.-65-5622G>T		intron	N/A	NP_001278929.1	Q14C71

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
GLRA1	ENST00000274576.9	TSL:1 MANE Select	c.85G>T	p.Ala29Ser	missense	Exon 2 of 9	ENSP00000274576.5	P23415-2
GLRA1	ENST00000455880.2	TSL:1	c.85G>T	p.Ala29Ser	missense	Exon 2 of 9	ENSP00000411593.2	P23415-1
GLRA1	ENST00000471351.2	TSL:1	n.368G>T		non_coding_transcript_exon	Exon 2 of 8

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461730

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727174

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.0000671

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111902

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hereditary hyperekplexia (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.077

BayesDel_addAF

Benign

-0.088

BayesDel_noAF

Benign

-0.36

CADD

Uncertain

(source)

DANN

Uncertain

0.99

Eigen

Uncertain

0.27

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.68

M_CAP

Benign

0.034

MetaRNN

Benign

0.22

MetaSVM

Benign

-0.74

MutationAssessor

Benign

0.34

PhyloP100

1.7

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-0.040

REVEL

Benign

0.13

Sift

Benign

0.44

Sift4G

Benign

0.80

Polyphen

0.89

Vest4

0.25

MutPred

0.27

Gain of phosphorylation at A29 (P = 0.0073)

MVP

0.78

MPC

1.5

ClinPred

0.88

GERP RS

5.6

Varity_R

0.14

gMVP

0.36

Mutation Taster

=80/20

polymorphism

(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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over