rs369279324

Variant names:

• chr1-1049070-A-G
• rs369279324
• NM_198576.4:c.4298+11A>G

Your query was ambiguous. Multiple possible variants found:

• chr1-1049070-A-G
• chr1-1049070-A-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_198576.4(AGRN):​c.4298+11A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: AGRN NM_198576.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.91
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• congenital myasthenic syndrome 8

  Inheritance: AR Classification: STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• presynaptic congenital myasthenic syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• postsynaptic congenital myasthenic syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AGRN	NM_198576.4	c.4298+11A>G		intron_variant	Intron 24 of 35	ENST00000379370.7	NP_940978.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AGRN	ENST00000379370.7	c.4298+11A>G		intron_variant	Intron 24 of 35	1	NM_198576.4	ENSP00000368678.2

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 927704 Hom.: 0 Cov.: 37 AF XY: 0.00 AC XY: 0 AN XY: 466862

African (AFR) AF: 0.00 AC: 0 AN: 18396

American (AMR) AF: 0.00 AC: 0 AN: 30954

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 18568

East Asian (EAS) AF: 0.00 AC: 0 AN: 24904

South Asian (SAS) AF: 0.00 AC: 0 AN: 68046

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 33406

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 2778

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 691940

Other (OTH) AF: 0.00 AC: 0 AN: 38712

GnomAD4 genome Cov.: 23

Alfa AF: 0.00 Hom.: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	0.011
DANN	Benign	0.11
PhyloP100		-2.9

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

Other links and lift over

dbSNP: rs369279324; hg19: chr1-984450;