1-156868505-G-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM1BP4_StrongBP6

The NM_002529.4(NTRK1):c.575G>C(p.Gly192Ala) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000316 in 1,557,322 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/23 in silico tools predict a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. G192G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00032 ( 0 hom. )

Consequence

NTRK1
NM_002529.4 missense, splice_region

Scores

Splicing: ADA: 0.8546

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 1.35

Publications

6 publications found

Variant links:

COSMIC-nc: COSV62327747

Genes affected

NTRK1 (HGNC:8031): (neurotrophic receptor tyrosine kinase 1) This gene encodes a member of the neurotrophic tyrosine kinase receptor (NTKR) family. This kinase is a membrane-bound receptor that, upon neurotrophin binding, phosphorylates itself and members of the MAPK pathway. The presence of this kinase leads to cell differentiation and may play a role in specifying sensory neuron subtypes. Mutations in this gene have been associated with congenital insensitivity to pain, anhidrosis, self-mutilating behavior, cognitive disability and cancer. Alternate transcriptional splice variants of this gene have been found, but only three have been characterized to date. [provided by RefSeq, Jul 2008]

NTRK1 Gene-Disease associations (from GenCC):

hereditary sensory and autonomic neuropathy type 4
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, ClinGen, Labcorp Genetics (formerly Invitae)
familial medullary thyroid carcinoma
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

NTRK1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 3 benign, 6 uncertain in NM_002529.4

BP4

Computational evidence support a benign effect (MetaRNN=0.02289632).

BP6

Variant 1-156868505-G-C is Benign according to our data. Variant chr1-156868505-G-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 526742.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NTRK1	NM_002529.4 link	c.575G>C	p.Gly192Ala	missense_variant, splice_region_variant	Exon 6 of 17	ENST00000524377.7	NP_002520.2	P04629-1
NTRK1	NM_001012331.2 link	c.575G>C	p.Gly192Ala	missense_variant, splice_region_variant	Exon 6 of 16		NP_001012331.1	P04629-2X5DR71
NTRK1	NM_001007792.1 link	c.485G>C	p.Gly162Ala	missense_variant, splice_region_variant	Exon 7 of 17		NP_001007793.1	P04629-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NTRK1	ENST00000524377.7 link	c.575G>C	p.Gly192Ala	missense_variant, splice_region_variant	Exon 6 of 17	1	NM_002529.4	ENSP00000431418.1		P04629-1

Frequencies

GnomAD3 genomes

AF:

0.000276

AC:

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000523

Gnomad ASJ

AF:

0.00403

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000206

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000418

AC:

AN:

165220

AF XY:

0.000434

show subpopulations

Gnomad AFR exome

AF:

0.000317

Gnomad AMR exome

AF:

0.000657

Gnomad ASJ exome

AF:

0.00337

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000127

Gnomad NFE exome

AF:

0.000230

Gnomad OTH exome

AF:

0.000652

GnomAD4 exome

AF:

0.000320

AC:

450

AN:

1405124

Hom.:

Cov.:

AF XY:

0.000330

AC XY:

229

AN XY:

693646

show subpopulations

African (AFR)

AF:

0.0000626

AC:

AN:

31954

American (AMR)

AF:

0.000680

AC:

AN:

36784

Ashkenazi Jewish (ASJ)

AF:

0.00329

AC:

AN:

25212

East Asian (EAS)

AF:

0.00

AC:

AN:

36310

South Asian (SAS)

AF:

0.00

AC:

AN:

79648

European-Finnish (FIN)

AF:

0.000161

AC:

AN:

49698

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4842

European-Non Finnish (NFE)

AF:

0.000292

AC:

316

AN:

1082496

Other (OTH)

AF:

0.000275

AC:

AN:

58180

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

127

159

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

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

GnomAD4 genome

AF:

0.000276

AC:

AN:

152198

Hom.:

Cov.:

AF XY:

0.000390

AC XY:

AN XY:

74342

show subpopulations

African (AFR)

AF:

0.0000965

AC:

AN:

41462

American (AMR)

AF:

0.000523

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00403

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.000188

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000206

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

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:

0.000528

Hom.:

Bravo

AF:

0.000348

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000117

AC:

ExAC

AF:

0.000165

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Hereditary insensitivity to pain with anhidrosis

Uncertain:1Benign:1

Feb 01, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Apr 28, 2017

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

not provided

Uncertain:1Benign:1

Mar 13, 2024

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Identified in a cohort of patients with high neuropathy, although individual clinical features or number of patients with this variant were not described (PMID: 27582484); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 27582484) -

Apr 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

NTRK1: BP4 -

Inborn genetic diseases

Uncertain:1

Mar 19, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.G192A variant (also known as c.575G>C) is located in coding exon 6 of the NTRK1 gene. The glycine at codon 192 is replaced by alanine, an amino acid with similar properties. This change occurs in the first base pair of coding exon 6. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.17

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.37

.;.;T;T

Eigen

Benign

-0.015

Eigen_PC

Benign

0.041

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.87

D;D;D;D

MetaRNN

Benign

0.023

T;T;T;T

MetaSVM

Benign

-0.40

MutationAssessor

Benign

1.7

.;L;L;.

PhyloP100

1.4

PrimateAI

Benign

0.37

PROVEAN

Benign

-1.5

N;N;N;N

REVEL

Uncertain

0.29

Sift

Benign

0.28

T;T;T;T

Sift4G

Benign

0.39

T;T;T;T

Polyphen

0.24, 1.0

.;B;D;.

Vest4

0.44

MVP

0.88

MPC

0.61

ClinPred

0.045

GERP RS

3.8

Varity_R

0.15

gMVP

0.61

Mutation Taster

=65/35

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.85

dbscSNV1_RF

Pathogenic

0.77

SpliceAI score (max)

0.11

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