rs536657086

Positions:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6BP7

The NM_198576.4(AGRN):​c.3732C>T​(p.His1244=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000343 in 1,605,734 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

AGRN
NM_198576.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: -2.09
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 1-1047876-C-T is Benign according to our data. Variant chr1-1047876-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 210108.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=-2.09 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AGRNNM_198576.4 linkuse as main transcriptc.3732C>T p.His1244= synonymous_variant 22/36 ENST00000379370.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AGRNENST00000379370.7 linkuse as main transcriptc.3732C>T p.His1244= synonymous_variant 22/361 NM_198576.4 P1O00468-6

Frequencies

GnomAD3 genomes
AF:
0.000158
AC:
24
AN:
152128
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000459
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000480
GnomAD3 exomes
AF:
0.0000488
AC:
11
AN:
225520
Hom.:
0
AF XY:
0.0000242
AC XY:
3
AN XY:
124066
show subpopulations
Gnomad AFR exome
AF:
0.000459
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000286
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000213
AC:
31
AN:
1453488
Hom.:
0
Cov.:
36
AF XY:
0.0000194
AC XY:
14
AN XY:
722458
show subpopulations
Gnomad4 AFR exome
AF:
0.000270
Gnomad4 AMR exome
AF:
0.0000228
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000178
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.000158
AC:
24
AN:
152246
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74424
show subpopulations
Gnomad4 AFR
AF:
0.000457
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000475
Alfa
AF:
0.000263
Hom.:
0
Bravo
AF:
0.000151

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoAug 06, 2014- -
Congenital myasthenic syndrome 8 Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 12, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
0.25
DANN
Benign
0.44
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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.

Other links and lift over

dbSNP: rs536657086; hg19: chr1-983256; API