Variant 1-1046095-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1

The NM_198576.4(AGRN):c.2805+7G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000352 in 1,614,028 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0017 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00021 ( 1 hom. )

Consequence

AGRN
NM_198576.4 splice_region, intron

Scores

Splicing: ADA: 0.00001065

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -0.518

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=-0.86).

BP6

Variant 1-1046095-G-A is Benign according to our data. Variant chr1-1046095-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 434107.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0017 (259/152332) while in subpopulation AFR AF= 0.00604 (251/41568). AF 95% confidence interval is 0.00542. There are 1 homozygotes in gnomad4. There are 133 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
AGRN	NM_198576.4 linkuse as main transcript	c.2805+7G>A		splice_region_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.2805+7G>A		splice_region_variant, intron_variant		1	NM_198576.4	ENSP00000368678	P1	O00468-6

Frequencies

GnomAD3 genomes

AF:

0.00162

AC:

247

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00577

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000392

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:

0.000956

GnomAD3 exomes

AF:

0.000482

AC:

121

AN:

251014

Hom.:

AF XY:

0.000331

AC XY:

AN XY:

135830

show subpopulations

Gnomad AFR exome

AF:

0.00653

Gnomad AMR exome

AF:

0.000318

Gnomad ASJ exome

AF:

0.0000994

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000211

AC:

309

AN:

1461696

Hom.:

Cov.:

AF XY:

0.000182

AC XY:

132

AN XY:

727132

show subpopulations

Gnomad4 AFR exome

AF:

0.00693

Gnomad4 AMR exome

AF:

0.000358

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000989

Gnomad4 OTH exome

AF:

0.000695

GnomAD4 genome

AF:

0.00170

AC:

259

AN:

152332

Hom.:

Cov.:

AF XY:

0.00179

AC XY:

133

AN XY:

74494

show subpopulations

Gnomad4 AFR

AF:

0.00604

Gnomad4 AMR

AF:

0.000392

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:

0.000946

Alfa

AF:

0.00116

Hom.:

Bravo

AF:

0.00196

Asia WGS

AF:

0.00173

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Apr 17, 2017	- -
Likely benign, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Sep 02, 2016	- -

not provided

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jul 01, 2023	AGRN: BP4, BP7, BS1 -
Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

Congenital myasthenic syndrome 8

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 11, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.86

CADD

Benign

0.20

DANN

Benign

0.33

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000011

dbscSNV1_RF

Benign

0.0

SpliceAI score (max)

0.010

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