1-1053933-C-T

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 2P and 17B. PM2BP4_StrongBP6_Very_StrongBP7BS1

The NM_198576.4(AGRN):​c.5832C>T​(p.Thr1944=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000214 in 1,604,636 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 0.0012 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

AGRN
NM_198576.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -3.32
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 Benign. Variant got -15 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.6).
BP6
Variant 1-1053933-C-T is Benign according to our data. Variant chr1-1053933-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 434111.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-3.32 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00121 (184/152366) while in subpopulation AFR AF= 0.00423 (176/41592). AF 95% confidence interval is 0.00372. There are 0 homozygotes in gnomad4. There are 95 alleles in male gnomad4 subpopulation. Median coverage is 34. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AGRNNM_198576.4 linkuse as main transcriptc.5832C>T p.Thr1944= synonymous_variant 34/36 ENST00000379370.7 NP_940978.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AGRNENST00000379370.7 linkuse as main transcriptc.5832C>T p.Thr1944= synonymous_variant 34/361 NM_198576.4 ENSP00000368678 P1O00468-6

Frequencies

GnomAD3 genomes
AF:
0.00122
AC:
185
AN:
152248
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00427
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000270
AC:
63
AN:
233424
Hom.:
0
AF XY:
0.000260
AC XY:
33
AN XY:
126772
show subpopulations
Gnomad AFR exome
AF:
0.00282
Gnomad AMR exome
AF:
0.000517
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000506
Gnomad NFE exome
AF:
0.00000955
Gnomad OTH exome
AF:
0.000522
GnomAD4 exome
AF:
0.000110
AC:
160
AN:
1452270
Hom.:
0
Cov.:
35
AF XY:
0.0000970
AC XY:
70
AN XY:
721720
show subpopulations
Gnomad4 AFR exome
AF:
0.00342
Gnomad4 AMR exome
AF:
0.000413
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000193
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.000217
GnomAD4 genome
AF:
0.00121
AC:
184
AN:
152366
Hom.:
0
Cov.:
34
AF XY:
0.00127
AC XY:
95
AN XY:
74518
show subpopulations
Gnomad4 AFR
AF:
0.00423
Gnomad4 AMR
AF:
0.000457
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000855
Hom.:
0
Bravo
AF:
0.00126

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoApr 11, 2016- -
Congenital myasthenic syndrome 8 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 19, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.60
CADD
Benign
0.40
DANN
Benign
0.86
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs143373928; hg19: chr1-989313; API