Variant rs201073369 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_198576.4(AGRN):c.67G>A(p.Val23Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000232 in 1,294,070 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 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. V23L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000023 ( 0 hom. )

Consequence

AGRN
NM_198576.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.455

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 -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.051137924).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
AGRN	NM_198576.4 linkuse as main transcript	c.67G>A	p.Val23Ile	missense_variant	1/36	ENST00000379370.7	NP_940978.2	O00468-6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
AGRN	ENST00000379370.7 linkuse as main transcript	c.67G>A	p.Val23Ile	missense_variant	1/36	1	NM_198576.4	ENSP00000368678.2		O00468-6
AGRN	ENST00000620552 linkuse as main transcript	c.-348G>A		5_prime_UTR_variant	1/39	5		ENSP00000484607.1		A0A087X208

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000263

AC:

AN:

75972

Hom.:

AF XY:

0.0000230

AC XY:

AN XY:

43528

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:

0.0000620

Gnomad FIN exome

AF:

0.000161

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000232

AC:

AN:

1294070

Hom.:

Cov.:

AF XY:

0.00000471

AC XY:

AN XY:

637506

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:

0.0000144

Gnomad4 FIN exome

AF:

0.0000281

Gnomad4 NFE exome

AF:

9.70e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Benign

0.92

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.052

LIST_S2

Benign

0.48

M_CAP

Pathogenic

0.52

MetaRNN

Benign

0.051

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.69

PrimateAI

Pathogenic

0.91

PROVEAN

Benign

-0.21

REVEL

Benign

0.078

Sift

Benign

0.95

Sift4G

Benign

0.063

Vest4

0.073

MutPred

0.17

Loss of catalytic residue at V23 (P = 0.0419);

MVP

0.38

MPC

0.35

ClinPred

0.019

GERP RS

1.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

gMVP

0.15

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over