1-1054833-C-T

Variant names:

Variant summary

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

The NM_198576.4(AGRN):c.5990C>T(p.Pro1997Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000732 in 1,557,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 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. P1997S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000076 ( 0 hom. )

Consequence

AGRN
NM_198576.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 1.83

Publications

0 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

AGRN links:

ENSG00000242590 (HGNC:):

ENSG00000242590 links:

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=0.09220272).

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

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
AGRN	NM_198576.4	MANE Select	c.5990C>T	p.Pro1997Leu	missense	Exon 36 of 36	NP_940978.2
AGRN	NM_001305275.2		c.6059C>T	p.Pro2020Leu	missense	Exon 39 of 39	NP_001292204.1	O00468-1
AGRN	NM_001364727.2		c.5687C>T	p.Pro1896Leu	missense	Exon 36 of 36	NP_001351656.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
AGRN	ENST00000379370.7	TSL:1 MANE Select	c.5990C>T	p.Pro1997Leu	missense	Exon 36 of 36	ENSP00000368678.2	O00468-6
AGRN	ENST00000461111.1	TSL:1	n.2106C>T		non_coding_transcript_exon	Exon 3 of 3
AGRN	ENST00000651234.1		c.5744C>T	p.Pro1915Leu	missense	Exon 38 of 38	ENSP00000499046.1	A0A494C1I6

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152100

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000424

AC:

AN:

165212

AF XY:

0.0000450

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000376

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000911

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000761

AC:

107

AN:

1405632

Hom.:

Cov.:

AF XY:

0.0000835

AC XY:

AN XY:

694690

show subpopulations

African (AFR)

AF:

0.0000310

AC:

AN:

32218

American (AMR)

AF:

0.0000266

AC:

AN:

37604

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25266

East Asian (EAS)

AF:

0.00

AC:

AN:

36788

South Asian (SAS)

AF:

0.00

AC:

AN:

79906

European-Finnish (FIN)

AF:

0.00

AC:

AN:

46352

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4126

European-Non Finnish (NFE)

AF:

0.0000940

AC:

102

AN:

1085130

Other (OTH)

AF:

0.0000515

AC:

AN:

58242

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.474

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000460

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74424

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41552

American (AMR)

AF:

0.0000654

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5164

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000883

AC:

AN:

67986

Other (OTH)

AF:

0.00

AC:

AN:

2106

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.461

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000566

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.0000260

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Congenital myasthenic syndrome 8 (1)

Inborn genetic diseases (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.080

BayesDel_noAF

Benign

-0.35

CADD

Benign

(source)

DANN

Benign

0.97

Eigen

Benign

-0.28

Eigen_PC

Benign

-0.24

FATHMM_MKL

Uncertain

0.86

LIST_S2

Pathogenic

0.98

M_CAP

Pathogenic

0.38

MetaRNN

Benign

0.092

MetaSVM

Benign

-0.30

PhyloP100

1.8

PrimateAI

Benign

0.34

PROVEAN

Uncertain

-2.9

REVEL

Uncertain

0.31

Sift

Benign

0.069

Sift4G

Uncertain

0.0090

Vest4

0.069

MVP

0.61

MPC

0.36

ClinPred

0.30

GERP RS

3.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

gMVP

0.48

Mutation Taster

=92/8

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over