rs115173026

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_198576.4(AGRN):​c.45G>T​(p.Pro15Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.331 in 1,393,132 control chromosomes in the GnomAD database, including 77,454 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.31 ( 7500 hom., cov: 32)
Exomes 𝑓: 0.33 ( 69954 hom. )

Consequence

AGRN
NM_198576.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.853

Publications

12 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: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.57).
BP6
Variant 1-1020217-G-T is Benign according to our data. Variant chr1-1020217-G-T is described in ClinVar as Benign. ClinVar VariationId is 128310.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.853 with no splicing effect.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.337 is higher than 0.05.

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.45G>Tp.Pro15Pro
synonymous
Exon 1 of 36NP_940978.2
AGRN
NM_001305275.2
c.45G>Tp.Pro15Pro
synonymous
Exon 1 of 39NP_001292204.1O00468-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AGRN
ENST00000379370.7
TSL:1 MANE Select
c.45G>Tp.Pro15Pro
synonymous
Exon 1 of 36ENSP00000368678.2O00468-6
AGRN
ENST00000620552.4
TSL:5
c.-370G>T
5_prime_UTR
Exon 1 of 39ENSP00000484607.1A0A087X208

Frequencies

GnomAD3 genomes
AF:
0.307
AC:
46469
AN:
151260
Hom.:
7503
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.263
Gnomad AMI
AF:
0.392
Gnomad AMR
AF:
0.234
Gnomad ASJ
AF:
0.282
Gnomad EAS
AF:
0.177
Gnomad SAS
AF:
0.319
Gnomad FIN
AF:
0.435
Gnomad MID
AF:
0.296
Gnomad NFE
AF:
0.341
Gnomad OTH
AF:
0.296
GnomAD2 exomes
AF:
0.343
AC:
17342
AN:
50582
AF XY:
0.344
show subpopulations
Gnomad AFR exome
AF:
0.317
Gnomad AMR exome
AF:
0.257
Gnomad ASJ exome
AF:
0.332
Gnomad EAS exome
AF:
0.235
Gnomad FIN exome
AF:
0.448
Gnomad NFE exome
AF:
0.366
Gnomad OTH exome
AF:
0.354
GnomAD4 exome
AF:
0.333
AC:
413987
AN:
1241764
Hom.:
69954
Cov.:
33
AF XY:
0.334
AC XY:
203698
AN XY:
610058
show subpopulations
African (AFR)
AF:
0.264
AC:
6553
AN:
24854
American (AMR)
AF:
0.246
AC:
4190
AN:
16998
Ashkenazi Jewish (ASJ)
AF:
0.296
AC:
5918
AN:
19982
East Asian (EAS)
AF:
0.172
AC:
4586
AN:
26658
South Asian (SAS)
AF:
0.327
AC:
19594
AN:
59960
European-Finnish (FIN)
AF:
0.420
AC:
13305
AN:
31716
Middle Eastern (MID)
AF:
0.239
AC:
851
AN:
3568
European-Non Finnish (NFE)
AF:
0.341
AC:
343058
AN:
1007512
Other (OTH)
AF:
0.315
AC:
15932
AN:
50516
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
13794
27589
41383
55178
68972
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
11558
23116
34674
46232
57790
<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:
0.307
AC:
46464
AN:
151368
Hom.:
7500
Cov.:
32
AF XY:
0.309
AC XY:
22903
AN XY:
74004
show subpopulations
African (AFR)
AF:
0.262
AC:
10849
AN:
41374
American (AMR)
AF:
0.233
AC:
3551
AN:
15220
Ashkenazi Jewish (ASJ)
AF:
0.282
AC:
977
AN:
3464
East Asian (EAS)
AF:
0.177
AC:
913
AN:
5146
South Asian (SAS)
AF:
0.319
AC:
1540
AN:
4830
European-Finnish (FIN)
AF:
0.435
AC:
4504
AN:
10364
Middle Eastern (MID)
AF:
0.288
AC:
84
AN:
292
European-Non Finnish (NFE)
AF:
0.341
AC:
23071
AN:
67668
Other (OTH)
AF:
0.295
AC:
620
AN:
2104
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
1675
3349
5024
6698
8373
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
470
940
1410
1880
2350
<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:
0.319
Hom.:
971
Bravo
AF:
0.289
Asia WGS
AF:
0.241
AC:
819
AN:
3400

ClinVar

ClinVar submissions
Significance:Benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
3
not specified (3)
-
-
2
Congenital myasthenic syndrome 8 (2)
-
-
1
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.57
CADD
Benign
11
DANN
Benign
0.74
PhyloP100
0.85
PromoterAI
0.0031
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.4
Mutation Taster
=100/0
polymorphism (auto)

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

Publications

Other links and lift over

dbSNP: rs115173026; hg19: chr1-955597; COSMIC: COSV108234496; API