chr15-23645132-C-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_019066.5(MAGEL2):c.2611G>T(p.Ala871Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00169 in 1,613,756 control chromosomes in the GnomAD database, including 36 homozygotes. In-silico tool predicts a benign outcome for this variant. 11/16 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A871F) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0091 ( 19 hom., cov: 33)

Exomes 𝑓: 0.00093 ( 17 hom. )

Consequence

MAGEL2
NM_019066.5 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -0.254

Publications

1 publications found

Variant links:

Genes affected

MAGEL2 (HGNC:6814): (MAGE family member L2) Prader-Willi syndrome (PWS) is caused by the loss of expression of imprinted genes in chromosome 15q11-q13 region. Affected individuals exhibit neonatal hypotonia, developmental delay, and childhood-onset obesity. Necdin (NDN), a gene involved in the terminal differentiation of neurons, localizes to this region of the genome and has been implicated as one of the genes responsible for the etiology of PWS. This gene is structurally similar to NDN, is also localized to the PWS chromosomal region, and is paternally imprinted, suggesting a possible role for it in PWS. [provided by RefSeq, Oct 2010]

MAGEL2 Gene-Disease associations (from GenCC):

Schaaf-Yang syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, ClinGen, Illumina, Labcorp Genetics (formerly Invitae)

MAGEL2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0025574267).

BP6

Variant 15-23645132-C-A is Benign according to our data. Variant chr15-23645132-C-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 158810.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00905 (1379/152340) while in subpopulation AFR AF = 0.0317 (1318/41584). AF 95% confidence interval is 0.0303. There are 19 homozygotes in GnomAd4. There are 644 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High AC in GnomAd4 at 1379 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MAGEL2	NM_019066.5 link	c.2611G>T	p.Ala871Ser	missense_variant	Exon 1 of 1	ENST00000650528.1	NP_061939.3	Q9UJ55

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MAGEL2	ENST00000650528.1 link	c.2611G>T	p.Ala871Ser	missense_variant	Exon 1 of 1		NM_019066.5	ENSP00000497810.1		Q9UJ55

Frequencies

GnomAD3 genomes

AF:

0.00904

AC:

1376

AN:

152222

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0317

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00229

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.00764

GnomAD2 exomes

AF:

0.00216

AC:

537

AN:

248946

AF XY:

0.00166

show subpopulations

Gnomad AFR exome

AF:

0.0310

Gnomad AMR exome

AF:

0.00142

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000798

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.000926

AC:

1354

AN:

1461416

Hom.:

Cov.:

AF XY:

0.000780

AC XY:

567

AN XY:

727008

show subpopulations

African (AFR)

AF:

0.0337

AC:

1127

AN:

33480

American (AMR)

AF:

0.00154

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000696

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53110

Middle Eastern (MID)

AF:

0.000693

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000252

AC:

AN:

1111868

Other (OTH)

AF:

0.00199

AC:

120

AN:

60372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

Heterozygous variant carriers

196

295

393

491

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

120

160

200

<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:

0.00905

AC:

1379

AN:

152340

Hom.:

Cov.:

AF XY:

0.00864

AC XY:

644

AN XY:

74506

show subpopulations

African (AFR)

AF:

0.0317

AC:

1318

AN:

41584

American (AMR)

AF:

0.00229

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.000207

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

68034

Other (OTH)

AF:

0.00756

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

131

197

262

328

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<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:

0.00182

Hom.:

Bravo

AF:

0.00992

ESP6500AA

AF:

0.0292

AC:

127

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00278

AC:

337

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:4

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Dec 31, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jun 15, 2017

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jul 14, 2018

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:1

Jan 08, 2014

Genetic Services Laboratory, University of Chicago

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.59

BayesDel_noAF

Benign

-0.60

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.15

T;T

Eigen

Benign

-0.38

Eigen_PC

Benign

-0.45

FATHMM_MKL

Benign

0.43

LIST_S2

Benign

0.55

.;T

MetaRNN

Benign

0.0026

T;T

PhyloP100

-0.25

PrimateAI

Benign

0.33

Sift4G

Benign

0.095

T;.

Vest4

0.052

MVP

0.043

MPC

0.097

ClinPred

0.0020

GERP RS

2.3

Varity_R

0.035

gMVP

0.11

Mutation Taster

=100/0

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over