rs797045059
Positions:
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1_ModeratePM2PP3_StrongPP5_Very_Strong
The NM_002529.4(NTRK1):c.360-2A>C variant causes a splice acceptor change. The variant allele was found at a frequency of 0.00000205 in 1,461,842 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )
Consequence
NTRK1
NM_002529.4 splice_acceptor
NM_002529.4 splice_acceptor
Scores
2
2
3
Splicing: ADA: 1.000
2
Clinical Significance
Conservation
PhyloP100: 4.33
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]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 16 ACMG points.
PVS1
?
Splicing variant, NOT destroyed by nmd, known LOF gene, truncates exone, which is 0.028439984 fraction of the gene. No cryptic splice site detected. Exon removal is inframe change.
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
PP5
?
Variant 1-156866908-A-C is Pathogenic according to our data. Variant chr1-156866908-A-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 209177.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
NTRK1 | NM_002529.4 | c.360-2A>C | splice_acceptor_variant | ENST00000524377.7 | |||
NTRK1 | NM_001007792.1 | c.270-2A>C | splice_acceptor_variant | ||||
NTRK1 | NM_001012331.2 | c.360-2A>C | splice_acceptor_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
NTRK1 | ENST00000524377.7 | c.360-2A>C | splice_acceptor_variant | 1 | NM_002529.4 | P4 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461842Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1AN XY: 727222
GnomAD4 exome
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3
AN:
1461842
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32
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1
AN XY:
727222
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GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
ClinVar
Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Hereditary insensitivity to pain with anhidrosis Pathogenic:3
Likely pathogenic, criteria provided, single submitter | clinical testing | Invitae | Mar 12, 2022 | ClinVar contains an entry for this variant (Variation ID: 209177). Disruption of this splice site has been observed in individual(s) with clinical features of NTRK1-related conditions (PMID: 26633545). This variant is not present in population databases (gnomAD no frequency). This sequence change affects an acceptor splice site in intron 3 of the NTRK1 gene. It is expected to disrupt RNA splicing. Variants that disrupt the donor or acceptor splice site typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in NTRK1 are known to be pathogenic (PMID: 10982191). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Apr 11, 2023 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Baylor Genetics | Jun 10, 2014 | This splice site variant is categorized as deleterious according to ACMG guidelines (PMID:18414213) and was found once in our laboratory in trans with a missense variant [R347P] in a 28-year-old female with anhidrosis, neuropathy, orthostatic hypotension, ptosis, hyperextensible joints, multiple fractures - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Benign
CADD
Pathogenic
DANN
Uncertain
Eigen
Pathogenic
Eigen_PC
Uncertain
FATHMM_MKL
Benign
D
MutationTaster
Benign
D;D;D;D
GERP RS
Splicing
Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
dbscSNV1_RF
Pathogenic
SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_AL_spliceai
Position offset: 2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at