dbSNP rs142210120: NDN:p.Pro256Pro (chr15-23686450-G-A) – ACMG Classification: Benign (-13 pts)

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7

The NM_002487.3(NDN):c.768C>T(p.Pro256Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000371 in 1,610,292 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0015 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00025 ( 1 hom. )

Consequence

NDN
NM_002487.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -4.29

Publications

2 publications found

Variant links:

Genes affected

NDN (HGNC:7675): (necdin, MAGE family member) This intronless gene is located in the Prader-Willi syndrome deletion region. It is an imprinted gene and is expressed exclusively from the paternal allele. Studies in mouse suggest that the protein encoded by this gene may suppress growth in postmitotic neurons. [provided by RefSeq, Jul 2008]

NDN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.91).

BP6

Variant 15-23686450-G-A is Benign according to our data. Variant chr15-23686450-G-A is described in ClinVar as Benign. ClinVar VariationId is 735178.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-4.29 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002487.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NDN	NM_002487.3	MANE Select	c.768C>T	p.Pro256Pro	synonymous	Exon 1 of 1	NP_002478.1	X5D982

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NDN	ENST00000649030.2	MANE Select	c.768C>T	p.Pro256Pro	synonymous	Exon 1 of 1	ENSP00000497916.1	Q99608

Frequencies

GnomAD3 genomes

AF:

0.00149

AC:

226

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00475

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000785

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:

0.000176

Gnomad OTH

AF:

0.00239

GnomAD2 exomes

AF:

0.000459

AC:

114

AN:

248404

AF XY:

0.000349

show subpopulations

Gnomad AFR exome

AF:

0.00416

Gnomad AMR exome

AF:

0.00108

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000979

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000250

AC:

365

AN:

1457992

Hom.:

Cov.:

AF XY:

0.000229

AC XY:

166

AN XY:

724690

show subpopulations

African (AFR)

AF:

0.00459

AC:

153

AN:

33352

American (AMR)

AF:

0.000990

AC:

AN:

44426

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26016

East Asian (EAS)

AF:

0.00

AC:

AN:

39628

South Asian (SAS)

AF:

0.00

AC:

AN:

85932

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53084

Middle Eastern (MID)

AF:

0.00122

AC:

AN:

5736

European-Non Finnish (NFE)

AF:

0.000104

AC:

115

AN:

1109638

Other (OTH)

AF:

0.000764

AC:

AN:

60180

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

116

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.00152

AC:

232

AN:

152300

Hom.:

Cov.:

AF XY:

0.00141

AC XY:

105

AN XY:

74470

show subpopulations

African (AFR)

AF:

0.00488

AC:

203

AN:

41572

American (AMR)

AF:

0.000784

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5166

South Asian (SAS)

AF:

0.00

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000176

AC:

AN:

68030

Other (OTH)

AF:

0.00237

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

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:

0.000491

Hom.:

Bravo

AF:

0.00165

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000356

ClinVar

ClinVar submissions as Germline

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.91

CADD

Benign

0.67

(source)

DANN

Benign

0.76

PhyloP100

-4.3

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over