Genetic Variant NTRK2:p.Ser2Leu (chr9-84670753-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_006180.6(NTRK2):c.5C>T(p.Ser2Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,410 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict 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. S2W) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

NTRK2
NM_006180.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.326

Publications

2 publications found

Variant links:

Genes affected

NTRK2 (HGNC:8032): (neurotrophic receptor tyrosine kinase 2) This gene encodes a member of the neurotrophic tyrosine receptor kinase (NTRK) family. This kinase is a membrane-bound receptor that, upon neurotrophin binding, phosphorylates itself and members of the MAPK pathway. Signalling through this kinase leads to cell differentiation. Mutations in this gene have been associated with obesity and mood disorders. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2014]

NTRK2 Gene-Disease associations (from GenCC):

developmental and epileptic encephalopathy, 58
Inheritance: AD Classification: STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
obesity, hyperphagia, and developmental delay
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
infantile spasms
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
undetermined early-onset epileptic encephalopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

NTRK2 links:

Genome browser will be placed here

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=0.07900882).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NTRK2	NM_006180.6 link	c.5C>T	p.Ser2Leu	missense_variant	Exon 2 of 19	ENST00000277120.8	NP_006171.2	Q16620-4A0A024R230Q5VWE5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NTRK2	ENST00000277120.8 link	c.5C>T	p.Ser2Leu	missense_variant	Exon 2 of 19	1	NM_006180.6	ENSP00000277120.3		Q16620-4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000399

AC:

AN:

250766

AF XY:

0.00000737

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460410

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726536

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33450

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86194

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52894

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5014

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111992

Other (OTH)

AF:

0.00

AC:

AN:

60308

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

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.091

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.47

CADD

Benign

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.27

.;T;.;.;.;.;T;.

Eigen

Benign

-0.79

Eigen_PC

Benign

-0.61

FATHMM_MKL

Benign

0.45

LIST_S2

Uncertain

0.88

D;D;D;D;D;.;.;.

M_CAP

Benign

0.018

MetaRNN

Benign

0.079

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

0.46

N;N;N;N;N;N;N;N

PhyloP100

0.33

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-0.52

N;N;N;N;N;N;N;N

REVEL

Benign

0.046

Sift

Benign

0.47

T;T;T;T;T;T;T;T

Sift4G

Benign

0.83

T;T;T;T;T;T;T;T

Polyphen

0.0010

B;B;B;B;B;B;B;B

Vest4

0.064

MutPred

0.37

Gain of catalytic residue at S2 (P = 0.0013);Gain of catalytic residue at S2 (P = 0.0013);Gain of catalytic residue at S2 (P = 0.0013);Gain of catalytic residue at S2 (P = 0.0013);Gain of catalytic residue at S2 (P = 0.0013);Gain of catalytic residue at S2 (P = 0.0013);Gain of catalytic residue at S2 (P = 0.0013);Gain of catalytic residue at S2 (P = 0.0013);

MVP

0.39

MPC

0.61

ClinPred

0.059

GERP RS

0.86

PromoterAI

-0.054

Neutral

(source)

Varity_R

0.045

gMVP

0.44

Mutation Taster

=76/24

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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9-84670753-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over