Variant 1-1020216-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_198576.4(AGRN):c.44C>G(p.Pro15Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00104 in 1,396,028 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. P15P) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00074 ( 1 hom., cov: 31)

Exomes 𝑓: 0.0011 ( 1 hom. )

Consequence

AGRN
NM_198576.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.41

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:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.04079905).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
AGRN	NM_198576.4 linkuse as main transcript	c.44C>G	p.Pro15Arg	missense_variant	1/36	ENST00000379370.7	NP_940978.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
AGRN	ENST00000379370.7 linkuse as main transcript	c.44C>G	p.Pro15Arg	missense_variant	1/36	1	NM_198576.4	ENSP00000368678	P1	O00468-6
AGRN	ENST00000620552.4 linkuse as main transcript	c.-371C>G		5_prime_UTR_variant	1/39	5		ENSP00000484607

Frequencies

GnomAD3 genomes

AF:

0.000740

AC:

112

AN:

151444

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000290

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:

0.000193

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00143

Gnomad OTH

AF:

0.000480

GnomAD3 exomes

AF:

0.000609

AC:

AN:

50884

Hom.:

AF XY:

0.000688

AC XY:

AN XY:

30530

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:

0.0000860

Gnomad FIN exome

AF:

0.000480

Gnomad NFE exome

AF:

0.00134

Gnomad OTH exome

AF:

0.00134

GnomAD4 exome

AF:

0.00107

AC:

1334

AN:

1244584

Hom.:

Cov.:

AF XY:

0.00104

AC XY:

636

AN XY:

611732

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

Gnomad4 AMR exome

AF:

0.0000583

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000374

Gnomad4 SAS exome

AF:

0.0000166

Gnomad4 FIN exome

AF:

0.000346

Gnomad4 NFE exome

AF:

0.00128

Gnomad4 OTH exome

AF:

0.000454

GnomAD4 genome

AF:

0.000740

AC:

112

AN:

151444

Hom.:

Cov.:

AF XY:

0.000771

AC XY:

AN XY:

73958

show subpopulations

Gnomad4 AFR

AF:

0.000290

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000193

Gnomad4 NFE

AF:

0.00143

Gnomad4 OTH

AF:

0.000480

Alfa

AF:

0.00106

Hom.:

Bravo

AF:

0.000676

ExAC

AF:

0.000210

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics	Feb 03, 2017	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	May 19, 2020	In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.25

CADD

Benign

DANN

Benign

0.18

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.13

LIST_S2

Benign

0.35

M_CAP

Pathogenic

0.69

MetaRNN

Benign

0.041

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.0

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

0.18

REVEL

Benign

0.073

Sift

Benign

0.10

Sift4G

Benign

0.10

Vest4

0.17

MVP

0.67

MPC

0.46

ClinPred

0.075

GERP RS

0.71

gMVP

0.25

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