Variant 1-1054431-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_198576.4(AGRN):c.5877-17C>A variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00125 in 1,558,112 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00077 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0013 ( 2 hom. )

Consequence

AGRN
NM_198576.4 splice_polypyrimidine_tract, intron

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.0270

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 Benign. Variant got -16 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.8).

BP6

Variant 1-1054431-C-A is Benign according to our data. Variant chr1-1054431-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 263200.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
AGRN	NM_198576.4 linkuse as main transcript	c.5877-17C>A		splice_polypyrimidine_tract_variant, intron_variant		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.5877-17C>A		splice_polypyrimidine_tract_variant, intron_variant		1	NM_198576.4	ENSP00000368678	P1	O00468-6

Frequencies

GnomAD3 genomes

AF:

0.000775

AC:

118

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000916

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00166

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00126

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000984

AC:

172

AN:

174736

Hom.:

AF XY:

0.00103

AC XY:

AN XY:

93264

show subpopulations

Gnomad AFR exome

AF:

0.000290

Gnomad AMR exome

AF:

0.00125

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000835

Gnomad FIN exome

AF:

0.000185

Gnomad NFE exome

AF:

0.00139

Gnomad OTH exome

AF:

0.00297

GnomAD4 exome

AF:

0.00130

AC:

1828

AN:

1405822

Hom.:

Cov.:

AF XY:

0.00130

AC XY:

907

AN XY:

695336

show subpopulations

Gnomad4 AFR exome

AF:

0.000217

Gnomad4 AMR exome

AF:

0.00153

Gnomad4 ASJ exome

AF:

0.0000396

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00101

Gnomad4 FIN exome

AF:

0.000384

Gnomad4 NFE exome

AF:

0.00147

Gnomad4 OTH exome

AF:

0.00113

GnomAD4 genome

AF:

0.000775

AC:

118

AN:

152290

Hom.:

Cov.:

AF XY:

0.000859

AC XY:

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.000192

Gnomad4 AMR

AF:

0.000915

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00166

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.00126

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.000287

Hom.:

Bravo

AF:

0.000842

ClinVar

Significance: Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Apr 11, 2017	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Likely benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -

Congenital myasthenic syndrome 8

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.80

CADD

Benign

2.9

DANN

Benign

0.49

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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