chr9-84670773-G-A
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BS2
The NM_006180.6(NTRK2):c.25G>A(p.Gly9Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,598 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. G9G) has been classified as Likely benign.
Frequency
Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000048 ( 0 hom. )
Consequence
NTRK2
NM_006180.6 missense
NM_006180.6 missense
Scores
4
7
7
Clinical Significance
Conservation
PhyloP100: 3.55
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]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -3 ACMG points.
PP2
?
Missense variant where missense usually causes diseases, NTRK2
BS2
?
High AC in GnomAd at 5 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
NTRK2 | NM_006180.6 | c.25G>A | p.Gly9Arg | missense_variant | 2/19 | ENST00000277120.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
NTRK2 | ENST00000277120.8 | c.25G>A | p.Gly9Arg | missense_variant | 2/19 | 1 | NM_006180.6 | P3 |
Frequencies
GnomAD3 genomes ? AF: 0.0000328 AC: 5AN: 152250Hom.: 0 Cov.: 33
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GnomAD4 exome AF: 0.00000479 AC: 7AN: 1461348Hom.: 0 Cov.: 33 AF XY: 0.00000550 AC XY: 4AN XY: 726980
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Aug 20, 2023 | The c.25G>A (p.G9R) alteration is located in exon 4 (coding exon 1) of the NTRK2 gene. This alteration results from a G to A substitution at nucleotide position 25, causing the glycine (G) at amino acid position 9 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Developmental and epileptic encephalopathy, 58 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | New York Genome Center | Jan 15, 2021 | - - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Mar 22, 2023 | An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 1341751). This variant has not been reported in the literature in individuals affected with NTRK2-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 9 of the NTRK2 protein (p.Gly9Arg). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Pathogenic
Dann
Pathogenic
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;D;D;D;D;.;.;.
M_CAP
Pathogenic
D
MetaRNN
Uncertain
T;T;T;T;T;T;T;T
MetaSVM
Benign
T
MutationAssessor
Benign
L;L;L;L;L;L;L;L
MutationTaster
Benign
D;D;D;D;D;D;D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N;N;N;N;N;N;N
REVEL
Uncertain
Sift
Benign
D;D;D;D;D;D;D;D
Sift4G
Benign
T;T;D;D;D;T;T;D
Polyphen
D;D;D;D;D;D;D;D
Vest4
MutPred
Loss of catalytic residue at G9 (P = 0.0639);Loss of catalytic residue at G9 (P = 0.0639);Loss of catalytic residue at G9 (P = 0.0639);Loss of catalytic residue at G9 (P = 0.0639);Loss of catalytic residue at G9 (P = 0.0639);Loss of catalytic residue at G9 (P = 0.0639);Loss of catalytic residue at G9 (P = 0.0639);Loss of catalytic residue at G9 (P = 0.0639);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at