rs772257175

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_198253.3(TERT):​c.1328C>T​(p.Thr443Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000215 in 1,395,336 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. T443A) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 0.0000022 ( 0 hom. )

Consequence

TERT
NM_198253.3 missense

Scores

1
8
10

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.49

Publications

2 publications found
Variant links:
Genes affected
TERT (HGNC:11730): (telomerase reverse transcriptase) Telomerase is a ribonucleoprotein polymerase that maintains telomere ends by addition of the telomere repeat TTAGGG. The enzyme consists of a protein component with reverse transcriptase activity, encoded by this gene, and an RNA component which serves as a template for the telomere repeat. Telomerase expression plays a role in cellular senescence, as it is normally repressed in postnatal somatic cells resulting in progressive shortening of telomeres. Deregulation of telomerase expression in somatic cells may be involved in oncogenesis. Studies in mouse suggest that telomerase also participates in chromosomal repair, since de novo synthesis of telomere repeats may occur at double-stranded breaks. Alternatively spliced variants encoding different isoforms of telomerase reverse transcriptase have been identified; the full-length sequence of some variants has not been determined. Alternative splicing at this locus is thought to be one mechanism of regulation of telomerase activity. [provided by RefSeq, Jul 2008]
TERT Gene-Disease associations (from GenCC):
  • pulmonary fibrosis and/or bone marrow failure, Telomere-related, 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • dyskeratosis congenita, autosomal dominant 2
    Inheritance: AR, AD, SD, Unknown Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), ClinGen, Laboratory for Molecular Medicine
  • acute myeloid leukemia
    Inheritance: AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • dyskeratosis congenita
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Hoyeraal-Hreidarsson syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • melanoma, cutaneous malignant, susceptibility to, 9
    Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.21940958).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TERTNM_198253.3 linkc.1328C>T p.Thr443Ile missense_variant Exon 2 of 16 ENST00000310581.10 NP_937983.2 O14746-1
TERTNM_001193376.3 linkc.1328C>T p.Thr443Ile missense_variant Exon 2 of 15 NP_001180305.1 O14746-3
TERTNR_149162.3 linkn.1407C>T non_coding_transcript_exon_variant Exon 2 of 13
TERTNR_149163.3 linkn.1407C>T non_coding_transcript_exon_variant Exon 2 of 13

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TERTENST00000310581.10 linkc.1328C>T p.Thr443Ile missense_variant Exon 2 of 16 1 NM_198253.3 ENSP00000309572.5 O14746-1
TERTENST00000334602.10 linkc.1328C>T p.Thr443Ile missense_variant Exon 2 of 15 1 ENSP00000334346.6 O14746-3
TERTENST00000460137.6 linkn.1328C>T non_coding_transcript_exon_variant Exon 2 of 13 1 ENSP00000425003.1 O14746-4
TERTENST00000656021.1 linkn.1328C>T non_coding_transcript_exon_variant Exon 2 of 17 ENSP00000499759.1 A0A590UK92

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD2 exomes
AF:
0.00000667
AC:
1
AN:
149842
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000215
AC:
3
AN:
1395336
Hom.:
0
Cov.:
32
AF XY:
0.00000291
AC XY:
2
AN XY:
687504
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31580
American (AMR)
AF:
0.00
AC:
0
AN:
35606
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25052
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35784
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79404
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
47798
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5670
European-Non Finnish (NFE)
AF:
0.00000279
AC:
3
AN:
1076652
Other (OTH)
AF:
0.00
AC:
0
AN:
57790
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.442
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
Cov.:
34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Uncertain
0.015
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
13
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.49
T;.
Eigen
Benign
-0.61
Eigen_PC
Benign
-0.73
FATHMM_MKL
Benign
0.10
N
LIST_S2
Benign
0.62
T;T
M_CAP
Pathogenic
0.64
D
MetaRNN
Benign
0.22
T;T
MetaSVM
Uncertain
0.14
D
MutationAssessor
Uncertain
2.1
M;M
PhyloP100
1.5
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-1.8
N;N
REVEL
Benign
0.23
Sift
Uncertain
0.0090
D;D
Sift4G
Uncertain
0.016
D;D
Polyphen
0.94
P;B
Vest4
0.079
MutPred
0.33
Loss of phosphorylation at T443 (P = 0.024);Loss of phosphorylation at T443 (P = 0.024);
MVP
0.59
MPC
1.3
ClinPred
0.11
T
GERP RS
2.6
Varity_R
0.050
gMVP
0.12
Mutation Taster
=61/39
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs772257175; hg19: chr5-1293673; API