Genetic Variant GLG1:p.Glu1044Ala (chr16-74459695-T-G) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001145667.2(GLG1):c.3131A>C(p.Glu1044Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000135 in 1,552,640 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 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

GLG1
NM_001145667.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.58

Variant links:

Genes affected

GLG1 (HGNC:4316): (golgi glycoprotein 1) Predicted to enable fibroblast growth factor binding activity. Predicted to act upstream of or within several processes, including negative regulation of protein processing; negative regulation of transforming growth factor beta receptor signaling pathway; and regulation of chondrocyte differentiation. Located in Golgi apparatus. [provided by Alliance of Genome Resources, Apr 2022]

GLG1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.18226263).

BS2

High AC in GnomAdExome4 at 19 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GLG1	NM_001145667.2 link	c.3131A>C	p.Glu1044Ala	missense_variant	Exon 23 of 26	ENST00000422840.7	NP_001139139.1	Q92896-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GLG1	ENST00000422840.7 link	c.3131A>C	p.Glu1044Ala	missense_variant	Exon 23 of 26	1	NM_001145667.2	ENSP00000405984.3		Q92896-1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151848

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000816

AC:

AN:

245104

Hom.:

AF XY:

0.00

AC XY:

AN XY:

132688

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000178

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000136

AC:

AN:

1400792

Hom.:

Cov.:

AF XY:

0.0000114

AC XY:

AN XY:

700588

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:

0.0000160

Gnomad4 OTH exome

AF:

0.0000343

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151848

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74152

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:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 04, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3131A>C (p.E1044A) alteration is located in exon 23 (coding exon 23) of the GLG1 gene. This alteration results from a A to C substitution at nucleotide position 3131, causing the glutamic acid (E) at amino acid position 1044 to be replaced by an alanine (A). 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

Benign

0.11

BayesDel_addAF

Benign

-0.083

BayesDel_noAF

Benign

-0.34

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.28

.;T;.

Eigen

Benign

-0.056

Eigen_PC

Benign

0.054

FATHMM_MKL

Uncertain

0.94

LIST_S2

Pathogenic

0.97

D;D;D

M_CAP

Benign

0.0037

MetaRNN

Benign

0.18

T;T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.2

L;L;.

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-2.0

N;N;N

REVEL

Benign

0.097

Sift

Benign

0.11

T;T;T

Sift4G

Benign

0.065

T;T;T

Polyphen

0.18

B;P;.

Vest4

0.39

MutPred

0.51

Gain of MoRF binding (P = 0.0387);Gain of MoRF binding (P = 0.0387);.;

MVP

0.11

MPC

0.52

ClinPred

0.30

GERP RS

5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.082

gMVP

0.49

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.

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