1-1043572-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The ENST00000379370.7(AGRN):​c.1638C>T​(p.Cys546=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000648 in 1,604,932 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000069 ( 0 hom. )

Consequence

AGRN
ENST00000379370.7 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -3.18
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.56).
BP6
Variant 1-1043572-C-T is Benign according to our data. Variant chr1-1043572-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 579550.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-3.18 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AGRNNM_198576.4 linkuse as main transcriptc.1638C>T p.Cys546= synonymous_variant 9/36 ENST00000379370.7 NP_940978.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AGRNENST00000379370.7 linkuse as main transcriptc.1638C>T p.Cys546= synonymous_variant 9/361 NM_198576.4 ENSP00000368678 P1O00468-6
AGRNENST00000651234.1 linkuse as main transcriptc.1323C>T p.Cys441= synonymous_variant 8/38 ENSP00000499046
AGRNENST00000652369.1 linkuse as main transcriptc.1323C>T p.Cys441= synonymous_variant 8/35 ENSP00000498543
AGRNENST00000620552.4 linkuse as main transcriptc.1224C>T p.Cys408= synonymous_variant 9/395 ENSP00000484607

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152158
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000294
AC:
7
AN:
238448
Hom.:
0
AF XY:
0.0000307
AC XY:
4
AN XY:
130406
show subpopulations
Gnomad AFR exome
AF:
0.000127
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000627
Gnomad NFE exome
AF:
0.0000278
Gnomad OTH exome
AF:
0.000168
GnomAD4 exome
AF:
0.0000688
AC:
100
AN:
1452774
Hom.:
0
Cov.:
35
AF XY:
0.0000567
AC XY:
41
AN XY:
723146
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.000134
Gnomad4 NFE exome
AF:
0.0000810
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152158
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74326
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000188
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000378
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Congenital myasthenic syndrome 8 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 04, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.56
CADD
Benign
0.25
DANN
Benign
0.65
RBP_binding_hub_radar
1.1
RBP_regulation_power_radar
2.8

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs142440782; hg19: chr1-978952; COSMIC: COSV65067490; COSMIC: COSV65067490; API