Genetic Variant GML:p.Arg22Gly (chr8-142840501-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_002066.3(GML):c.64C>G(p.Arg22Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000689 in 1,451,734 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R22C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

GML
NM_002066.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.733

Publications

0 publications found

Variant links:

Genes affected

GML (HGNC:4375): (glycosylphosphatidylinositol anchored molecule like) Predicted to be involved in DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest; apoptotic process; and negative regulation of cell population proliferation. Predicted to be extrinsic component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

GML links:

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ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.04286188).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002066.3. 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
	GML	NM_002066.3	MANE Select	c.64C>G	p.Arg22Gly	missense	Exon 2 of 4	NP_002057.1	Q99445

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GML	ENST00000220940.2	TSL:1 MANE Select	c.64C>G	p.Arg22Gly	missense	Exon 2 of 4	ENSP00000220940.1	Q99445
	GML	ENST00000522728.5	TSL:3	c.64C>G	p.Arg22Gly	missense	Exon 2 of 5	ENSP00000430799.1	E5RI31

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251346

AF XY:

0.00000736

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.89e-7

AC:

AN:

1451734

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

722768

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33290

American (AMR)

AF:

0.00

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26098

East Asian (EAS)

AF:

0.00

AC:

AN:

39634

South Asian (SAS)

AF:

0.00

AC:

AN:

86038

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5752

European-Non Finnish (NFE)

AF:

9.07e-7

AC:

AN:

1102716

Other (OTH)

AF:

0.00

AC:

AN:

60086

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.066

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.59

CADD

Benign

0.098

(source)

DANN

Benign

0.34

DEOGEN2

Benign

0.0078

Eigen

Benign

-2.4

Eigen_PC

Benign

-2.4

FATHMM_MKL

Benign

0.0019

LIST_S2

Benign

0.30

M_CAP

Benign

0.00049

MetaRNN

Benign

0.043

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-1.4

PhyloP100

-0.73

PrimateAI

Benign

0.23

PROVEAN

Benign

1.9

REVEL

Benign

0.090

Sift

Benign

0.28

Sift4G

Benign

0.60

Polyphen

0.0

Vest4

0.081

MutPred

0.46

Loss of helix (P = 0.0558)

MVP

0.067

MPC

0.20

ClinPred

0.081

GERP RS

-5.4

Varity_R

0.037

gMVP

0.44

Mutation Taster

=100/0

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