rs1260027166
Positions:
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate
The NM_015450.3(POT1):c.131G>T(p.Cys44Phe) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C44Y) has been classified as Uncertain significance.
Frequency
Genomes: not found (cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control
Consequence
POT1
NM_015450.3 missense
NM_015450.3 missense
Scores
9
5
5
Clinical Significance
Conservation
PhyloP100: 3.77
Genes affected
POT1 (HGNC:17284): (protection of telomeres 1) This gene is a member of the telombin family and encodes a nuclear protein involved in telomere maintenance. Specifically, this protein functions as a member of a multi-protein complex that binds to the TTAGGG repeats of telomeres, regulating telomere length and protecting chromosome ends from illegitimate recombination, catastrophic chromosome instability, and abnormal chromosome segregation. Increased transcriptional expression of this gene is associated with stomach carcinogenesis and its progression. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
PM1
?
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 15 uncertain in NM_015450.3
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.892
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
POT1 | NM_015450.3 | c.131G>T | p.Cys44Phe | missense_variant | 7/19 | ENST00000357628.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
POT1 | ENST00000357628.8 | c.131G>T | p.Cys44Phe | missense_variant | 7/19 | 2 | NM_015450.3 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0AN: 1427638Hom.: 0 Cov.: 29 AF XY: 0.00 AC XY: 0AN XY: 709596
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
AC:
0
AN:
1427638
Hom.:
Cov.:
29
AF XY:
AC XY:
0
AN XY:
709596
Gnomad4 AFR exome
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Gnomad4 AMR exome
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Gnomad4 EAS exome
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Gnomad4 SAS exome
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Gnomad4 FIN exome
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Gnomad4 NFE exome
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Gnomad4 OTH exome
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GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Tumor predisposition syndrome 3 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Oct 06, 2022 | This variant is not present in population databases (gnomAD no frequency). 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt POT1 protein function. ClinVar contains an entry for this variant (Variation ID: 1042300). This variant has not been reported in the literature in individuals affected with POT1-related conditions. This sequence change replaces cysteine, which is neutral and slightly polar, with phenylalanine, which is neutral and non-polar, at codon 44 of the POT1 protein (p.Cys44Phe). - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Pathogenic
D;D;D
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;.;D
M_CAP
Benign
D
MetaRNN
Pathogenic
D;D;D
MetaSVM
Benign
T
MutationAssessor
Benign
M;.;.
MutationTaster
Benign
D;D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D;.
REVEL
Uncertain
Sift
Benign
T;D;.
Sift4G
Pathogenic
D;.;.
Polyphen
D;.;.
Vest4
MutPred
Gain of catalytic residue at C44 (P = 0.0512);Gain of catalytic residue at C44 (P = 0.0512);Gain of catalytic residue at C44 (P = 0.0512);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at