rs144781935

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_198576.4(AGRN):​c.3034G>A​(p.Ala1012Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000399 in 1,602,004 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 17/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1012P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000036 ( 1 hom. )

Consequence

AGRN
NM_198576.4 missense

Scores

17

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: -0.105

Publications

1 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 -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.027375668).

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.3034G>Ap.Ala1012Thr
missense
Exon 18 of 36NP_940978.2
AGRN
NM_001305275.2
c.3034G>Ap.Ala1012Thr
missense
Exon 18 of 39NP_001292204.1O00468-1
AGRN
NM_001364727.2
c.2719G>Ap.Ala907Thr
missense
Exon 17 of 36NP_001351656.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AGRN
ENST00000379370.7
TSL:1 MANE Select
c.3034G>Ap.Ala1012Thr
missense
Exon 18 of 36ENSP00000368678.2O00468-6
AGRN
ENST00000651234.1
c.2719G>Ap.Ala907Thr
missense
Exon 17 of 38ENSP00000499046.1A0A494C1I6
AGRN
ENST00000652369.2
c.2719G>Ap.Ala907Thr
missense
Exon 17 of 35ENSP00000498543.1A0A494C0G5

Frequencies

GnomAD3 genomes
AF:
0.0000794
AC:
12
AN:
151042
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000730
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000209
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.000481
GnomAD2 exomes
AF:
0.0000531
AC:
13
AN:
244862
AF XY:
0.0000749
show subpopulations
Gnomad AFR exome
AF:
0.0000641
Gnomad AMR exome
AF:
0.0000583
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000819
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000358
AC:
52
AN:
1450840
Hom.:
1
Cov.:
54
AF XY:
0.0000346
AC XY:
25
AN XY:
722190
show subpopulations
African (AFR)
AF:
0.0000602
AC:
2
AN:
33246
American (AMR)
AF:
0.000202
AC:
9
AN:
44450
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25958
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39490
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85970
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51598
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5740
European-Non Finnish (NFE)
AF:
0.0000344
AC:
38
AN:
1104428
Other (OTH)
AF:
0.0000334
AC:
2
AN:
59960
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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
GnomAD4 genome
AF:
0.0000794
AC:
12
AN:
151164
Hom.:
0
Cov.:
33
AF XY:
0.000108
AC XY:
8
AN XY:
73888
show subpopulations
African (AFR)
AF:
0.0000728
AC:
3
AN:
41196
American (AMR)
AF:
0.00
AC:
0
AN:
15252
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5118
South Asian (SAS)
AF:
0.000210
AC:
1
AN:
4770
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10312
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.000103
AC:
7
AN:
67758
Other (OTH)
AF:
0.000476
AC:
1
AN:
2102
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.000113
Hom.:
0
Bravo
AF:
0.0000604
ESP6500AA
AF:
0.000228
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000828
AC:
10
EpiCase
AF:
0.00
EpiControl
AF:
0.000178

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
3
-
Congenital myasthenic syndrome 8 (3)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.67
CADD
Benign
1.3
DANN
Benign
0.49
Eigen
Benign
-1.8
Eigen_PC
Benign
-1.9
FATHMM_MKL
Benign
0.014
N
LIST_S2
Benign
0.49
T
M_CAP
Benign
0.049
D
MetaRNN
Benign
0.027
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
-1.2
N
PhyloP100
-0.10
PrimateAI
Benign
0.31
T
PROVEAN
Benign
0.50
N
REVEL
Benign
0.059
Sift
Benign
0.65
T
Sift4G
Benign
0.88
T
Vest4
0.063
MVP
0.51
MPC
0.30
ClinPred
0.0075
T
GERP RS
-5.1
gMVP
0.19
Mutation Taster
=99/1
polymorphism

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: rs144781935; hg19: chr1-981899; COSMIC: COSV65071817; COSMIC: COSV65071817; API