1-156871722-C-G

Variant names:

• chr1-156871722-C-G
• rs151334385
• NM_002529.4:c.817C>G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_002529.4(NTRK1):​c.817C>G​(p.Arg273Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/22 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. R273Q) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: NTRK1 NM_002529.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.284
• Publications: 4 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.41387317).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NTRK1	NM_002529.4	c.817C>G	p.Arg273Gly	missense_variant	Exon 7 of 17	ENST00000524377.7	NP_002520.2
NTRK1	NM_001012331.2	c.817C>G	p.Arg273Gly	missense_variant	Exon 7 of 16		NP_001012331.1
NTRK1	NM_001007792.1	c.727C>G	p.Arg243Gly	missense_variant	Exon 8 of 17		NP_001007793.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NTRK1	ENST00000524377.7	c.817C>G	p.Arg273Gly	missense_variant	Exon 7 of 17	1	NM_002529.4	ENSP00000431418.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.40
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.55	.;.;D;T
Eigen	Benign	-0.15
Eigen_PC	Benign	-0.26
FATHMM_MKL	Benign	0.40	N
LIST_S2	Uncertain	0.86	D;D;T;D
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.41	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.3	.;M;M;.
PhyloP100		0.28
PrimateAI	Benign	0.46	T
PROVEAN	Uncertain	-2.5	D;D;D;D
REVEL	Benign	0.14
Sift	Benign	0.23	T;T;T;T
Sift4G	Benign	0.33	T;T;T;T
Polyphen		0.97, 1.0	.;D;D;.
Vest4		0.46
MutPred		0.44		.;Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);
MVP		0.70
MPC		1.0
ClinPred		0.94	D
GERP RS		3.8
Varity_R		0.34
gMVP		0.89
Mutation Taster		=93/7	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs151334385; hg19: chr1-156841514;