Genetic Variant NDN:p.Ala280Thr (chr15-23686380-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002487.3(NDN):c.838G>A(p.Ala280Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000498 in 1,606,462 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A280S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000048 ( 1 hom. )

Consequence

NDN
NM_002487.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.827

Publications

0 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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.22415146).

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.838G>A	p.Ala280Thr	missense	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.838G>A	p.Ala280Thr	missense	Exon 1 of 1	ENSP00000497916.1	Q99608

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152174

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000163

AC:

AN:

245726

AF XY:

0.0000225

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000117

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000481

AC:

AN:

1454170

Hom.:

Cov.:

AF XY:

0.00000415

AC XY:

AN XY:

722386

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33250

American (AMR)

AF:

0.000136

AC:

AN:

44166

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25690

East Asian (EAS)

AF:

0.00

AC:

AN:

39604

South Asian (SAS)

AF:

0.00

AC:

AN:

85256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52978

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5570

European-Non Finnish (NFE)

AF:

9.03e-7

AC:

AN:

1107678

Other (OTH)

AF:

0.00

AC:

AN:

59978

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

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:

0.00000657

AC:

AN:

152292

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74452

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41578

American (AMR)

AF:

0.0000653

AC:

AN:

15312

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5160

South Asian (SAS)

AF:

0.00

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.89

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.40

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.65

Eigen

Benign

-0.012

Eigen_PC

Benign

-0.031

FATHMM_MKL

Uncertain

0.80

LIST_S2

Benign

0.76

M_CAP

Benign

0.0046

MetaRNN

Benign

0.22

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.1

PhyloP100

0.83

PrimateAI

Uncertain

0.62

PROVEAN

Uncertain

-2.4

REVEL

Benign

0.16

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.014

Polyphen

0.60

Vest4

0.49

MutPred

0.62

Loss of stability (P = 0.0315)

MVP

0.46

MPC

0.98

ClinPred

0.37

GERP RS

1.5

Varity_R

0.17

gMVP

0.59

Mutation Taster

=94/6

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over