rs372918766

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_198576.4(AGRN):​c.4513G>A​(p.Val1505Met) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000519 in 1,599,812 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 18/23 in silico tools predict 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

AGRN
NM_198576.4 missense, splice_region

Scores

2
15
Splicing: ADA: 0.0004196
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.525

Publications

4 publications found
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 Gene-Disease associations (from GenCC):
  • congenital myasthenic syndrome 8
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4
Computational evidence support a benign effect (MetaRNN=0.11745256).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_198576.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AGRN
NM_198576.4
MANE Select
c.4513G>Ap.Val1505Met
missense splice_region
Exon 25 of 36NP_940978.2
AGRN
NM_001305275.2
c.4513G>Ap.Val1505Met
missense splice_region
Exon 25 of 39NP_001292204.1O00468-1
AGRN
NM_001364727.2
c.4198G>Ap.Val1400Met
missense splice_region
Exon 24 of 36NP_001351656.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AGRN
ENST00000379370.7
TSL:1 MANE Select
c.4513G>Ap.Val1505Met
missense splice_region
Exon 25 of 36ENSP00000368678.2O00468-6
AGRN
ENST00000651234.1
c.4198G>Ap.Val1400Met
missense splice_region
Exon 24 of 38ENSP00000499046.1A0A494C1I6
AGRN
ENST00000652369.2
c.4198G>Ap.Val1400Met
missense splice_region
Exon 24 of 35ENSP00000498543.1A0A494C0G5

Frequencies

GnomAD3 genomes
AF:
0.000131
AC:
20
AN:
152114
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000386
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000580
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000673
AC:
16
AN:
237836
AF XY:
0.0000769
show subpopulations
Gnomad AFR exome
AF:
0.000573
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000166
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000361
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000435
AC:
63
AN:
1447698
Hom.:
0
Cov.:
42
AF XY:
0.0000388
AC XY:
28
AN XY:
720750
show subpopulations
African (AFR)
AF:
0.000657
AC:
22
AN:
33462
American (AMR)
AF:
0.0000448
AC:
2
AN:
44690
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26110
East Asian (EAS)
AF:
0.000252
AC:
10
AN:
39684
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86214
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
39842
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000216
AC:
24
AN:
1111666
Other (OTH)
AF:
0.0000830
AC:
5
AN:
60264
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
4
8
13
17
21
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000131
AC:
20
AN:
152114
Hom.:
0
Cov.:
32
AF XY:
0.000161
AC XY:
12
AN XY:
74310
show subpopulations
African (AFR)
AF:
0.000386
AC:
16
AN:
41424
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000580
AC:
3
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68010
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.523
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000647
Hom.:
0
Bravo
AF:
0.000166
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000497
AC:
6
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Congenital myasthenic syndrome 8 (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
16
DANN
Benign
0.85
Eigen
Benign
-0.44
Eigen_PC
Benign
-0.48
FATHMM_MKL
Benign
0.71
D
LIST_S2
Benign
0.82
T
M_CAP
Uncertain
0.24
D
MetaRNN
Benign
0.12
T
MetaSVM
Benign
-0.53
T
MutationAssessor
Benign
1.8
L
PhyloP100
0.53
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.1
N
REVEL
Benign
0.22
Sift
Benign
0.14
T
Sift4G
Uncertain
0.025
D
Vest4
0.18
MVP
0.71
MPC
0.15
ClinPred
0.015
T
GERP RS
2.2
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.0
gMVP
0.42
Mutation Taster
=84/16
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00042
dbscSNV1_RF
Benign
0.088
Splicevardb
3.0
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

Other links and lift over

dbSNP: rs372918766; hg19: chr1-984830; COSMIC: COSV65069507; COSMIC: COSV65069507; API