dbSNP rs367587156: AGRN:p.Glu1749Glu (chr1-1050831-G-A) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_198576.4(AGRN):c.5247G>A(p.Glu1749Glu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000241 in 1,575,454 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

AGRN
NM_198576.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: 2.46

Variant links:

Genes affected

AGRN (HGNC:329): (agrin) This gene encodes one of several proteins that are critical in the development of the neuromuscular junction (NMJ), as identified in mouse knock-out studies. The encoded protein contains several laminin G, Kazal type serine protease inhibitor, and epidermal growth factor domains. Additional post-translational modifications occur to add glycosaminoglycans and disulfide bonds. In one family with congenital myasthenic syndrome affecting limb-girdle muscles, a mutation in this gene was found. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2015]

AGRN links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.55).

BP6

Variant 1-1050831-G-A is Benign according to our data. Variant chr1-1050831-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 541199.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=2.45 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AGRN	NM_198576.4 link	c.5247G>A	p.Glu1749Glu	synonymous_variant	Exon 30 of 36	ENST00000379370.7	NP_940978.2	O00468-6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
AGRN	ENST00000379370.7 link	c.5247G>A	p.Glu1749Glu	synonymous_variant	Exon 30 of 36	1	NM_198576.4	ENSP00000368678.2	O00468-6
AGRN	ENST00000651234.1 link	c.4932G>A	p.Glu1644Glu	synonymous_variant	Exon 29 of 38			ENSP00000499046.1	A0A494C1I6
AGRN	ENST00000652369.1 link	c.4932G>A	p.Glu1644Glu	synonymous_variant	Exon 29 of 35			ENSP00000498543.1	A0A494C0G5
AGRN	ENST00000620552.4 link	c.4833G>A	p.Glu1611Glu	synonymous_variant	Exon 30 of 39	5		ENSP00000484607.1	A0A087X208

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152120

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000410

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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

GnomAD3 exomes

AF:

0.0000533

AC:

AN:

187588

Hom.:

AF XY:

0.0000586

AC XY:

AN XY:

102440

show subpopulations

Gnomad AFR exome

AF:

0.000716

Gnomad AMR exome

AF:

0.0000352

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:

0.0000122

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000133

AC:

AN:

1423334

Hom.:

Cov.:

AF XY:

0.0000142

AC XY:

AN XY:

705482

show subpopulations

Gnomad4 AFR exome

AF:

0.000486

Gnomad4 AMR exome

AF:

0.0000500

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:

0.00

Gnomad4 OTH exome

AF:

0.0000170

GnomAD4 genome

AF:

0.000125

AC:

AN:

152120

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74300

show subpopulations

Gnomad4 AFR

AF:

0.000410

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000427

Hom.:

Bravo

AF:

0.000215

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

AGRN-related disorder

Benign:1

May 21, 2019

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Congenital myasthenic syndrome 8

Benign:1

Nov 12, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.55

CADD

Benign

5.5

DANN

Benign

0.82

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

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